Water jacket partition plate, engine and vehicle

Abstract

The water jacket partition plate is used for being arranged on a cylinder body, the water jacket partition plate comprises a plate body and a cylinder cover water inlet flow isolation rib, the plate body comprises an inner peripheral surface and an outer peripheral surface which are opposite to each other, and a cylinder hole flow channel is formed in the inner peripheral surface; the cylinder cover water inlet flow-isolating rib is arranged on the peripheral surface, the cylinder cover water inlet flow-isolating rib and the peripheral surface jointly define a cylinder cover water inlet flow channel, and the cylinder cover water inlet flow channel is used for being communicated with a cylinder cover; the plate body is further provided with a cylinder hole water inlet hole penetrating through the inner peripheral surface and the outer peripheral surface, the cylinder hole water inlet hole is communicated with the cylinder hole flow channel and the cylinder cover water inlet flow channel, cooling of the cylinder body and the cylinder cover can be achieved only through one water jacket partition plate, a pipeline connected with the cylinder cover is omitted, and the structure of an engine is simplified.

Description

Technical Field

[0001] The present invention relates to the technical field of engines, and in particular to a water jacket partition, an engine and a vehicle. Background Art

[0002] The engine drives the vehicle by converting the heat energy of fuel combustion into mechanical energy. The engine needs to be temperature controlled during operation to improve thermal efficiency and ensure that the engine is in the optimal operating range.

[0003] Currently, engine temperature control is primarily achieved through the cooling system, which consists of a water pump, radiator, and related piping. Currently, if an engine uses independent cooling for the cylinder block and cylinder head, these cooling systems require separate cooling pipes, resulting in a complex structure and a bulky water jacket. Summary of the Invention

[0004] The object of the present invention is to provide a water jacket baffle, an engine and a vehicle, which solve the problem that a cylinder block and a cylinder head need to be provided with independent cooling pipelines, resulting in a complex structure.

[0005] To achieve the purpose of the present invention, the present invention provides the following technical solutions:

[0006] In a first aspect, the present invention provides a water jacket baffle, which is used to be arranged in a cylinder body, and the water jacket baffle comprises: a plate body, including an inner circumferential surface and an outer circumferential surface opposite to each other, the inner circumferential surface forming a cylinder bore flow channel; a cylinder head water inlet baffle rib, which is arranged on the outer circumferential surface, the cylinder head water inlet baffle rib and the outer circumferential surface together enclose a cylinder head water inlet flow channel, and the cylinder head water inlet flow channel is used to be connected to the cylinder head; wherein, the plate body is further provided with a cylinder bore water inlet hole penetrating the inner circumferential surface and the outer circumferential surface, and the cylinder bore water inlet hole is connected to the cylinder bore flow channel and the cylinder head water inlet flow channel.

[0007] In one embodiment, the cylinder head water inlet isolation rib includes a hole edge rib, and the hole edge rib is provided at the edge of the cylinder hole water inlet hole and semi-surrounds the cylinder hole water inlet hole.

[0008] In one embodiment, the plate body extends along an axis; the cylinder head water inlet isolation rib further includes a guide rib, the guide rib is connected to the hole edge rib, and the guide rib extends along the circumference of the plate body.

[0009] In one embodiment, the cylinder head water inlet isolation rib also includes a water outlet rib, which is connected to the guide rib and extends along the axial direction of the plate body. The end of the water outlet rib away from the guide rib extends to the axial end surface of the plate body; the cylinder head water inlet channel includes a water outlet formed by the water outlet rib and the outer peripheral surface.

[0010] In one embodiment, the hole edge ribs are smoothly connected to the guide ribs, and / or the water outlet ribs are smoothly connected to the guide ribs.

[0011] In one embodiment, the guide ribs include two arranged at intervals in the axial direction of the plate body, and the water outlet ribs include two arranged at intervals in the circumferential direction of the plate body.

[0012] In one embodiment, the plate body is in a ring shape that is connected end to end and fits into the cylinder hole of the cylinder body.

[0013] In one embodiment, the plate body includes a first part and a second part connected in the axial direction of the cylinder hole, the first part and the second part are both rings connected end to end, the outer circumferential surface of the first part is flush with the outer circumferential surface of the second part, and the inner circumferential surface of the second part is recessed relative to the inner circumferential surface of the first part, so that the first part forms a step surface toward the end face of the second part, and the inner circumferential surface of the second part and the step surface enclose the cylinder hole flow channel.

[0014] In one embodiment, the cylinder water inlet hole is provided in the first portion, and a first connecting groove connecting the cylinder water inlet hole and the cylinder flow channel is provided on the inner circumferential surface of the first portion.

[0015] In one embodiment, the first portion is further provided with a cylinder water outlet hole penetrating the inner circumferential surface and the outer circumferential surface, and the inner circumferential surface of the first portion is further provided with a second connecting groove connecting the cylinder water outlet hole and the cylinder flow channel.

[0016] In one embodiment, the water jacket baffle further includes a cylinder hole water outlet isolating rib, which is arranged on the outer peripheral surface of the plate body. The cylinder hole water outlet isolating rib and the outer peripheral surface of the plate body are combined to form a cylinder hole water outlet flow channel, and the cylinder hole water outlet hole is connected to the cylinder hole water outlet flow channel.

[0017] In one embodiment, the water jacket baffle further includes a machine cooling water intake isolating rib, the machine cooling water intake isolating rib is arranged on the outer peripheral surface, the machine cooling water intake isolating rib is connected to the cylinder head water inlet isolating rib, the machine cooling water intake isolating rib and the outer peripheral surface together enclose a machine cooling water intake flow channel, and the machine cooling water intake flow channel is connected to the cylinder bore water inlet hole.

[0018] In one embodiment, the water jacket partition further includes a machine cooling water outlet isolating rib, the machine cooling water outlet isolating rib is arranged on the outer peripheral surface, and the machine cooling water outlet isolating rib is spaced apart from the machine cooling water inlet isolating rib, the machine cooling water outlet isolating rib is in a ring shape connected end to end and together with the outer peripheral surface, forms a machine cooling water outlet flow channel, and the machine cooling water outlet flow channel and the machine cooling water inlet flow channel are used to communicate through an oil cooler.

[0019] In a second aspect, the present invention further provides an engine, comprising a cylinder body and a water jacket baffle according to any one of the various embodiments of the first aspect, wherein the cylinder body is provided with a cylinder hole, a mounting groove and a cylinder hole water inlet, the mounting groove surrounds the outer circumference of the cylinder hole, the water jacket baffle is accommodated in the mounting groove and cooperates with the side wall of the mounting groove to form the cylinder hole flow channel and the cylinder head water inlet flow channel, and the cylinder hole water inlet is connected to the cylinder hole water inlet hole of the water jacket baffle.

[0020] In one embodiment, the mounting groove includes a first side wall and a second side wall relative to each other, the first side wall is close to the cylinder hole, the inner circumferential surface of the first portion of the plate body of the water jacket baffle is in close contact with the first side wall, the inner circumferential surface of the second portion is spaced apart from the first side wall to form the cylinder hole flow channel, and the cylinder head water inlet isolation rib of the water jacket baffle is in close contact with the second side wall to form the cylinder head water inlet flow channel.

[0021] In one embodiment, the engine further includes a water pump, and the water pump is connected to the water inlet of the cylinder bore.

[0022] In a third aspect, the present invention further provides a vehicle comprising the engine described in any one of the various embodiments of the second aspect.

[0023] The water jacket baffle of the present invention is formed by setting a plate body and enclosing a cylinder bore flow channel. The outer peripheral surface of the water jacket baffle is provided with a cylinder head water inlet baffle rib and encloses the cylinder head water inlet flow channel to form a cylinder head water inlet flow channel. The plate body is provided with a cylinder bore water inlet hole. Cooling water flows into the cylinder bore flow channel through the cylinder bore water inlet hole to cool the cylinder body in one way, and flows into the cylinder head through the cylinder head water inlet flow channel to cool the cylinder head in the other way. Only one water jacket baffle is needed to realize the cooling of the cylinder body and the cylinder head, eliminating the pipeline connected to the cylinder head and simplifying the structure of the engine. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0025] Figure 1 is an exploded view of a partial structure of an engine according to an embodiment;

[0026] Figure 2 is a cross-sectional view of a cylinder body and a water jacket partition according to an embodiment;

[0027] Figure 3 is a perspective view of a water jacket baffle according to an embodiment;

[0028] Figure 4 yes Figure 3 A three-dimensional view of the water jacket partition from another perspective;

[0029] Figure 5 yes Figure 3 A perspective view of the water jacket baffle from another perspective;

[0030] Figure 6 It is a three-dimensional view of a water jacket partition according to another embodiment.

[0031] Description of reference numerals:

[0032] 10 - cylinder body, 11 - cylinder hole, 12 - mounting groove, 121 - first side wall, 122 - second side wall, 13 - cylinder hole water inlet, 14 - first water outlet, 15 - cooling water inlet, 16 - cooling water return port, 17 - second water outlet;

[0033] 20 - Water jacket baffle, 21 - Plate body, 211 - Outer circumferential surface, 212 - Inner circumferential surface, 213 - Cylinder bore flow channel, 214 - Cylinder bore water inlet, 215 - First portion, 216 - Second portion, 217 - First connecting groove, 218 - Cylinder bore water outlet, 219 - Second connecting groove; 22 - Cylinder head water inlet isolating rib, 221 - Hole edge rib, 222 - Guide rib, 223 - Water outlet rib, 224 - Cylinder head water inlet flow channel; 23 - Cooling water inlet isolating rib, 231 - Cooling water inlet flow channel; 24 - Cooling water outlet isolating rib, 241 - Cooling water outlet flow channel, 25 - Cylinder bore water outlet isolating rib, 251 - Cylinder bore water outlet flow channel;

[0034] 30-water pump, 31-water pump outlet;

[0035] 40-oil cooler, 41-cooling water inlet, 42-cooling water outlet;

[0036] 50-thermostat, 51-first water inlet, 52-second water inlet;

[0037] A-axis line. DETAILED DESCRIPTION

[0038] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0039] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may be an intermediate component. When a component is referred to as being "connected to" another component, it may be directly connected to the other component or there may be an intermediate component.

[0040] Unless otherwise defined, all technical and scientific terms used herein have the same meanings as commonly understood by those skilled in the art to which this invention pertains. The terms used in this specification are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0041] The following embodiments of the present invention are described in detail with reference to the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments may be combined with each other.

[0042] An embodiment of the present invention provides a vehicle including an engine according to an embodiment of the present invention. The vehicle may be a fuel-powered vehicle, a plug-in hybrid electric vehicle, an extended-range hybrid electric vehicle, or any other type of vehicle having an engine, without limitation. The cooling channels of the cylinder head of the engine according to an embodiment of the present invention are directed from the cylinder block 10, eliminating the need for additional cylinder head cooling lines, thus reducing the need for cylinder head cooling lines and simplifying the engine structure.

[0043] Please refer to Figure 1 and Figure 2 An embodiment of the present invention provides an engine, including a cylinder block 10.

[0044] The engine also includes Figure 1 and Figure 2 The cylinder head, crankshaft, connecting rod, piston, oil pan, intake and exhaust mechanism, spark plug, etc. are not shown. One end of the cylinder block 10 (such as Figure 1 and Figure 2 The upper end shown in the figure) is connected to the cylinder head, and the other end (as shown in the figure) is connected to the cylinder head. Figure 1 and Figure 2 The crankshaft is connected to the oil pan (the lower end shown in FIG). The crankshaft is connected to a bearing seat on the cylinder block 10 near the oil pan. One end of the connecting rod is rotatably connected to the crankshaft. The cylinder block 10 defines a cylinder bore 11, which receives a piston. The other end of the connecting rod is rotatably connected to the piston. The cylinder head defines a combustion chamber (not shown) that communicates with the cylinder bore 11. The cylinder head also houses the intake and exhaust mechanisms and spark plugs.

[0045] During engine operation, the intake mechanism delivers air and fuel into the combustion chamber, spark plug ignition occurs, and the high-temperature, high-pressure gas generated by the fuel combustion pushes the piston to extend and retract within cylinder bore 11. Exhaust gas is then expelled through the exhaust mechanism. To control engine temperature, improve thermal efficiency, and maintain optimal engine operating conditions, embodiments of the present invention also incorporate a temperature control mechanism.

[0046] Specifically, refer to Figures 1 to 3 The engine of this embodiment of the present invention further includes a water jacket baffle 20. The cylinder block 10 further defines a mounting groove 12 and a cylinder bore water inlet 13. The mounting groove 12 surrounds the outer periphery of the cylinder bore 11. The water jacket baffle 20 is received in the mounting groove 12 and cooperates with the sidewall of the mounting groove 12 to form a cylinder bore flow channel 213 and a cylinder head water inlet flow channel 224. The cylinder bore water inlet 13 communicates with the cylinder bore water inlet hole 214 of the water jacket baffle 20.

[0047] The mounting groove 12 can surround all or part of the outer circumference of the cylinder bore 11, meaning it can be connected end-to-end or disconnected. Correspondingly, the water jacket baffle 20 housed in the mounting groove 12 can also be connected end-to-end or disconnected. The mounting groove 12 is formed on the end surface of the cylinder block 10 that connects to the cylinder head. Once the water jacket baffle 20 is installed in the mounting groove 12, it can be flush with the end surface of the cylinder block 10 that connects to the cylinder head.

[0048] The engine may also include a cylinder gasket (not shown). The cylinder gasket is mounted on the end surface of the cylinder block 10 for connection to the cylinder head and seals the mounting groove 12. The cylinder gasket may have corresponding holes as needed to facilitate the circulation of cooling water between the cylinder block 10 and the cylinder head. It should be understood that the cooling water may be a liquid medium such as ordinary water, water containing a coolant, or coolant, without limitation. Hereinafter, the term "cooling water" will be used to refer to the liquid medium.

[0049] Cooling water enters through the cylinder bore water inlet 13. A portion flows into the cylinder bore flow channel 213 to cool the cylinder block 10 (i.e., cylinder bore 11), while a portion flows to the cylinder head through the cylinder head water inlet flow channel 224 to cool the cylinder head. Because the fuel combustion location is close to the junction of the cylinder block 10 and the cylinder head, the temperature at the junction of the cylinder block 10 and the cylinder head is relatively high. Therefore, a mounting groove 12 is provided at the end where the cylinder block 10 and the cylinder head meet. The mounting groove 12 is close to the junction of the cylinder block 10 and the cylinder head. The water jacket partition 20 in the mounting groove 12 cooperates with the sidewall of the mounting groove 12 to form the cylinder bore flow channel 213, which is relatively close to the high-temperature area, thus improving the cooling effect. The cylinder head water inlet flow channel 224 is connected to the cylinder head, allowing cooling water to flow to the cylinder head through the cylinder head water inlet flow channel 224 to cool the cylinder head. This eliminates the need for a separate pipeline connected to the cylinder head, simplifying the engine structure.

[0050] refer to Figures 2 to 4The mounting groove 12 includes a first side wall 121 and a second side wall 122 opposite to each other. The first side wall 121 is close to the cylinder hole 11. The inner circumferential surface 212 of the first portion 215 of the plate body 21 of the water jacket partition 20 is in close contact with the first side wall 121. The inner circumferential surface 212 of the second portion 216 is spaced apart from the first side wall 121 to form a cylinder hole flow channel 213. The cylinder head water inlet isolation rib 22 of the water jacket partition 20 is in close contact with the second side wall 122 to form a cylinder head water inlet flow channel 224.

[0051] The shape of the mounting groove 12 can be adapted to the shape of the cylinder bore 11, and the shape of the water jacket baffle 20 can be adapted to the shape of the mounting groove 12, that is, the shape of the water jacket baffle 20 is adapted to the shape of the cylinder bore 11. Adaptation means that the wall thickness of the structure from the cylinder bore 11 to the mounting groove 12 is roughly equal. Since the inner wall cross-section of the cylinder bore 11 is an arc, the shape of the water jacket baffle 20 is also roughly an arc.

[0052] The cylinder bore water inlet 13 passes through the outer surface of the cylinder body 10 to the second side wall 122, so that it can be connected with the cylinder head water inlet channel 224, the cylinder bore water inlet hole 214 and the cylinder bore channel 213. The cylinder bore water inlet 13 can be surrounded by a pipe joint (not shown) on the outer surface of the cylinder body 10 to facilitate connection with the water pump 30.

[0053] refer to Figure 1 and Figure 2 The engine also includes a water pump 30, which is in communication with the cylinder bore water inlet 13. The water pump 30 is directly connected to the cylinder block 10, and the water pump outlet 31 of the water pump 30 is directly in communication with the cylinder bore water inlet 13. This eliminates the need for piping between the water pump 30 and the cylinder block 10, further simplifying the engine structure. The water pump 30 can be a mechanical water pump 30, an electronic water pump 30, or the like, without limitation.

[0054] Optional, reference Figure 1 The engine also includes an oil cooler 40 having an oil cooler water inlet 41 and an oil cooler water outlet 42. The cylinder block 10 also has an oil cooler water intake 15 and an oil cooler water return 16. The oil cooler 40 is directly connected to the cylinder block 10, with the oil cooler water inlet 41 communicating with the oil cooler water intake 15, and the oil cooler water outlet 42 communicating with the oil cooler water return 16. This eliminates the need for piping between the oil cooler 40 and the cylinder block 10, simplifying the engine structure.

[0055] Cooling water flows from the cooling water inlet 15 into the cooling water inlet 41, passes through the oil cooler 40, and then flows out of the cooling water outlet 42 to the cooling water return port 16. Both the cooling water inlet 15 and the cooling water return port 16 extend through the outer surface of the cylinder block 10 to the second side wall 122 and can be enclosed by pipe joints on the outer surface of the cylinder block 10 to facilitate connection to the oil cooler 40.

[0056] Optional, reference Figure 1 and Figure 6 The outer periphery of the plate body 21 of the water jacket partition 20 is also provided with a machine cooling water intake isolation rib 23 and a machine cooling water outlet isolation rib 24, which are tightly attached to and enclosed with the second side wall 122 to form a machine cooling water intake channel 231 and a machine cooling water outlet channel 241. The machine cooling water intake channel 231 is connected to the cylinder head water inlet channel 224 and the cylinder hole water inlet hole 214, the machine cooling water intake port 15 is connected to the machine cooling water intake channel 231, and the machine cooling return water port 16 is connected to the machine cooling water outlet channel 241.

[0057] When the cooling water enters the cylinder bore water inlet hole 214, part of it flows into the cylinder bore flow channel 213 to cool the cylinder body 10, part of it flows into the cylinder head water inlet flow channel 224 and then flows to the cylinder head to cool the cylinder head, and the rest of it flows into the engine cooling water intake flow channel 231 and flows to the oil cooler 40 to cool the oil cooler 40. The cooling water of the oil cooler 40 then flows back to the engine cooling water outlet flow channel 241.

[0058] refer to Figure 1 The engine also includes a thermostat 50 having a first water inlet 51 and a second water inlet 52. The cylinder block 10 also has a first water outlet 14 and a second water outlet 17. The thermostat 50 is directly connected to the cylinder block 10, with the first water inlet 51 communicating with the first water outlet 14, and the second water inlet 52 communicating with the second water outlet 17. This eliminates the need for piping between the cylinder block 10 and the thermostat 50, simplifying the engine structure. Furthermore, the thermostat 50 having two water inlets allows for more precise control of the cooling water circulation loop, thereby enabling more accurate control of the engine temperature.

[0059] Optional, reference Figure 6 The plate body 21 of the water jacket partition 20 is also provided with a cylinder hole water outlet 218, and the cylinder hole water outlet 218 is connected to the cylinder hole flow channel 213. Figure 1 and Figure 6 The first water outlet 14 is connected to the cylinder hole water outlet 218, and the second water outlet 17 is connected to the machine cooling water outlet channel 241.

[0060] Cooling water from cylinder bore flow channel 213 flows into thermostat 50 through cylinder bore water outlet 218, first water outlet 14, and first water inlet 51. Cooling water from engine cooling water outlet flow channel 241 flows into thermostat 50 through second water outlet 17 and second water inlet 52. By controlling the opening and shutoff of cooling water in different paths, thermostat 50 controls whether cooling water flows and the flow rate, thereby controlling engine temperature. The specific structure of thermostat 50 is not limited in this embodiment of the present invention, and its control principles are not described in detail here.

[0061] Optional, reference Figure 1The engine may further include a radiator (not shown), and the thermostat 50 may be connected to the radiator. The radiator is fed with water from the thermostat 50, and the cooling water after passing through the radiator flows back to the thermostat 50.

[0062] The thermostat 50 is also connected to the cylinder head and the water inlet of the water pump 30 (not shown). The cooling water for cooling the cylinder head flows to the thermostat 50, the cooling water for cooling the cylinder bore flow channel 213 for cooling the cylinder body 10 (cylinder bore 11) flows to the thermostat 50, and the cooling water for cooling the oil cooler 40 flows to the thermostat 50. The water in the thermostat 50 is then supplied to the water pump 30, forming a circulation of the cooling water circuit.

[0063] The water jacket partition 20 according to the embodiment of the present invention is described in detail below.

[0064] refer to Figure 1 and Figure 2 An embodiment of the present invention provides a water jacket baffle 20 , which is used to be arranged on the cylinder body 10 .

[0065] In one embodiment, reference Figures 3 to 5 The water jacket partition 20 includes a plate body 21 and a cylinder head water inlet partition rib 22.

[0066] The plate body 21 includes an inner peripheral surface 212 and an outer peripheral surface 211 facing each other, and the inner peripheral surface 212 forms a cylinder bore flow channel 213. It should be understood that the cylinder bore flow channel 213 should be completely the mounting groove 12 (refer to Figure 2 ) is enclosed by the first side wall 121, the inner peripheral surface 212 of the plate body 21 and the cylinder gasket. For the convenience of explanation, Figures 3 to 5 The space enclosed by the inner circumferential surface 212 of the plate body 21 is also referred to as the cylinder bore flow passage 213, which will not be further described below. As previously mentioned, the plate body 21 can be an annular structure, connected end to end or disconnected, and has a plate-like shape. When installed in the cylinder body 10, its inner circumferential surface 212 is the surface closest to the cylinder bore 11, and the outer circumferential surface 211 is the surface facing away from the cylinder bore 11 relative to the inner circumferential surface 212.

[0067] The cylinder head water inlet isolation rib 22 is provided on the outer peripheral surface 211 of the plate body 21. The cylinder head water inlet isolation rib 22 and the outer peripheral surface 211 together enclose a cylinder head water inlet flow channel 224. The cylinder head water inlet flow channel 224 is used to connect to the cylinder head. The cylinder head water inlet isolation rib 22 is in the shape of a rib and can be an integral structure made by an integral molding process with the plate body 21 or connected and fixed to the outer peripheral surface 211 of the plate body 21 by welding or other methods, without limitation. The cylinder head water inlet isolation rib 22 protrudes from the outer peripheral surface 211 of the plate body 21. It should be understood that the complete cylinder head water inlet flow channel 224 should be the mounting groove 12 (refer to Figure 2 ) is enclosed by the second side wall 122, the outer peripheral surface 211 of the plate body 21 and the cylinder head water inlet isolation rib 22. For the convenience of explanation, Figures 3 to 5 The space enclosed by the outer circumferential surface 211 of the plate 21 and the cylinder head water inlet barrier rib 22 is also referred to as the cylinder head water inlet passage 224, which will not be further described below. The shape and structure of the cylinder head water inlet barrier rib 22 are not limited, and the manner in which the cylinder head water inlet passage 224 connects to the cylinder head is not limited.

[0068] Plate body 21 further defines a cylinder bore water inlet hole 214 extending through inner circumferential surface 212 and outer circumferential surface 211. Cylinder bore water inlet hole 214 communicates with cylinder bore flow passage 213 and cylinder head water inlet flow passage 224. The shape of cylinder bore water inlet hole 214 can be circular, elliptical, or the like, without limitation. The size of cylinder bore water inlet hole 214 can be adjusted as needed to allow cooling water to enter cylinder bore flow passage 213 through cylinder bore water inlet hole 214 and also to enter the cylinder head through cylinder head water inlet flow passage 224.

[0069] Combine Figure 1 The cylinder bore water inlet 13 is connected to the cylinder bore water inlet hole 214. Specifically, the cylinder bore water inlet 13 is connected to the cylinder head water inlet flow channel 224, which in turn is connected to the cylinder bore water inlet hole 214. The cooling water delivered by the water pump 30 flows through the cylinder bore water inlet hole 214 into the cylinder bore flow channel 213 to cool the cylinder block 10 (cylinder bore 11). The cooling water flows through the cylinder head water inlet flow channel 224 to cool the cylinder head.

[0070] Currently, conventional engines connect the water pump 30 and the cylinder block 10 through one pipeline, and connect the water pump 30 and the cylinder head through another pipeline. The cylinder block 10 and the cylinder head are each supplied with water by independent pipelines, resulting in the engine requiring more pipelines and a more complex structure.

[0071] In the embodiment of the present invention, a water jacket baffle 20 is provided, and the water jacket baffle 20 is provided with a plate body 21 to enclose a cylinder bore flow channel 213. The outer peripheral surface 211 of the water jacket baffle 20 is provided with a cylinder head water inlet partition rib 22 to enclose a cylinder head water inlet flow channel 224. The plate body 21 has a cylinder bore water inlet hole 214. Cooling water flows into the cylinder bore flow channel 213 through the cylinder bore water inlet hole 214 to cool the cylinder body 10, and flows into the cylinder head through the cylinder head water inlet flow channel 224 to cool the cylinder head. Only one water jacket baffle 20 is required to cool the cylinder body 10 and the cylinder head, eliminating the pipeline connected to the cylinder head and simplifying the structure of the engine.

[0072] Optional, reference Figure 3The cylinder head water inlet isolation rib 22 includes a hole edge rib 221. The hole edge rib 221 is arranged at the edge of the cylinder bore water inlet hole 214 and semi-surrounds the cylinder bore water inlet hole 214. The shape of the hole edge rib 221 can be an arc, a free curve, a multi-segment line, etc., without limitation. The hole edge rib 221 can be flush with the inner wall of the cylinder bore water inlet hole 214, or can be offset to the outside by a certain distance relative to the inner wall of the cylinder bore water inlet hole 214, without limitation. The hole edge rib 221 semi-surrounds the cylinder bore water inlet hole 214, that is, the hole edge rib 221 is not a ring connected end to end, but has an opening. When the cooling water enters the cylinder head water inlet flow channel 224, the hole edge rib 221 can guide and limit the water flow, so that the cooling water enters the cylinder bore water inlet hole 214 all the way, flows through the opening of the hole edge rib 221 all the way, and flows into the cylinder head.

[0073] Optional, reference Figure 3 and Figure 4 The plate 21 extends along an axis A. Optionally, the plate 21 is annular in shape in a cross section along the axis A. Specifically, the axis A is the axis A of the cylinder bore 11, that is, the plate 21 extends in the axial direction of the cylinder bore 11, and the plate 21 is adapted to the inner wall shape of the cylinder bore 11 and is also annular, so that the cylinder bore flow channel 213 enclosed by the plate 21 can cool the cylinder bore 11 more evenly.

[0074] refer to Figure 1 The cylinder body 10 may have multiple cylinder holes 11, and the multiple cylinder holes 11 are arranged side by side. The corresponding plate body 21 may also be divided into multiple units. The multiple units are sequentially connected in the arrangement direction of the multiple cylinder holes 11, and each unit corresponds to each cylinder hole 11. The cross-section of each unit is generally annular, not connected end to end. It is understood that the cylinder body 10 may also have only one cylinder hole 11, and the plate body 21 may have only one unit.

[0075] Optional, reference Figure 3 and Figure 4 The cylinder head water inlet isolation rib 22 also includes a guide rib 222, which is connected to the hole edge rib 221 and extends along the circumference of the plate body 21. The guide rib 222 can be an integral structure made by an integral molding process with the plate body 21, or can be fixedly connected by welding or other means. The guide rib 222 can also be an integral structure or welded to the hole edge rib 221, without limitation.

[0076] The axial direction of the plate body 21 is the direction of rotation about the axial direction. Guide ribs 222 are provided and extend circumferentially along the plate body 21 to rationally arrange the flow path of the cylinder head water inlet channel 224, thereby enabling communication with the cylinder head at an appropriate location. If the guide ribs 222 extend along the extension direction of the axis A, the cylinder head water inlet channel 224 will have a shorter path and will need to be located near the cylinder bore water inlet hole 214 to communicate with the cylinder head, resulting in a crowded and irrational structure.

[0077] Optional, reference Figure 3 and Figure 4 The cylinder head water inlet barrier rib 22 also includes a water outlet rib 223, which is connected to the guide rib 222 and extends axially along the plate body 21. The end of the water outlet rib 223, which is remote from the guide rib 222, extends to the axial end surface of the plate body 21. The cylinder head water inlet flow channel 224 includes a water outlet formed by the water outlet rib 223 and the outer peripheral surface 211. The water outlet rib 223 can be an integral structure manufactured by an integral molding process with the plate body 21, or can be fixedly connected by welding or other means. The water outlet rib 223 can also be an integral structure or fixedly connected by welding with the guide rib 222, without limitation.

[0078] Combine Figures 1 to 4 , since the cylinder head is connected to the end face of the cylinder body 10 ( Figure 1 and Figure 3 The upper end face of the plate 21 is connected to the cylinder head, and the cylinder head water inlet channel 224 needs to be extended to the end face of the cylinder body 10, so a water outlet rib 223 is provided. The water outlet rib 223 extends along the axial direction of the plate body 21 and reaches the end face of the plate body 21. According to the above description, the axial end face of the plate body 21 is connected to the end face of the cylinder body 10 ( Figure 1 and Figure 2 The water outlet rib 223 extends to the end face of the plate body 21 corresponding to the upper end face of the cylinder body 10 and is flush with the end face. The water outlet of the cylinder head water inlet channel 224 is located at the end face. Then a cylinder gasket is set on the end face and a hole is opened in the cylinder gasket. The cylinder gasket closes the cylinder head water outlet channel, and the hole of the cylinder gasket is connected with the cylinder head water outlet channel, thereby realizing the connection between the cylinder head water inlet channel 224 and the cylinder head.

[0079] Optional, reference Figure 3 The hole edge ribs 221 and the guide ribs 222 are smoothly connected, which can facilitate the smooth flow of cooling water and avoid turbulence that affects the cooling effect.

[0080] Optional, reference Figure 4 The water outlet rib 223 is smoothly connected to the guide rib 222, which facilitates the smooth flow of cooling water and avoids turbulence that affects the cooling effect.

[0081] Optional, reference Figure 3 and Figure 4The guide ribs 222 include two spaced apart in the axial direction of the plate body 21, and the outlet ribs 223 include two spaced apart in the circumferential direction of the plate body 21. To enclose and form the cylinder head water inlet channel 224, two guide ribs 222 and two outlet ribs 223 are required. The two guide ribs 222 are each connected to both ends of the hole edge rib 221, and the two outlet ribs 223 are each connected to the ends of the two guide ribs 222 away from the hole edge rib 221. In this way, the cylinder head water inlet channel 224 can be enclosed and formed with a simple structure.

[0082] Combine Figure 1 and Figure 4 , for the two guide ribs 222, the length of the guide rib 222 close to the cylinder head side is slightly shorter, and the length of the guide rib 222 away from the cylinder head side is slightly longer, that is, Figure 4 As shown, the length of the guide rib 222 near the bottom is greater than the length of the guide rib 222 near the top. In this way, after the two guide ribs 222 are connected to the two water outlet ribs 223, the width of the cylinder head water inlet channel 224 is roughly within a small deviation range, ensuring the stability of the water flow.

[0083] Optional, reference Figure 4 The portion of the guide rib 222 near the bottom that is aligned with the guide rib 222 near the top can be parallel to each other, and the portion of the guide rib 222 near the bottom that exceeds the guide rib 222 near the top can be gradually inclined toward the upper side to facilitate guiding the water flow and make the water flow smoother.

[0084] Optional, reference Figure 4 Since the distances between the two guide ribs 222 and the upper end surface of the plate body 21 are different, the lengths of the corresponding two water outlet ribs 223 are also different. The length of the water outlet rib 223 connected to the upper guide rib 222 is shorter, and the length of the water outlet rib 223 connected to the lower guide rib 222 is longer.

[0085] Optional, reference Figure 1 、 Figures 3 to 5 The plate body 21 is annular, connected end to end, and adapted to the cylinder bore 11 of the cylinder block 10. The annular shape of the plate body 21 is described above and will not be further elaborated here. This allows the cylinder bore flow channel 213 to be annular, connected end to end. Cooling water flowing from the cylinder bore water inlet 214 into the cylinder bore flow channel 213 flows in two opposite directions along the circumference of the plate body 21, ultimately filling the entire cylinder bore flow channel 213. This dissipates heat around the cylinder bore 11 and prevents localized high temperatures.

[0086] Optional, reference Figures 3 to 5The plate body 21 includes a first portion 215 and a second portion 216 connected in the axial direction of the cylinder bore 11. The first portion 215 and the second portion 216 are both annular and connected end to end. The outer circumferential surface 211 of the first portion 215 is flush with the outer circumferential surface 211 of the second portion 216. The inner circumferential surface 212 of the second portion 216 is recessed relative to the inner circumferential surface 212 of the first portion 215, forming a stepped surface at the end of the first portion 215 facing the second portion 216. The inner circumferential surface 212 of the second portion 216 and the stepped surface together form the cylinder bore flow channel 213. In other words, the first portion 215 is thicker than the second portion 216, and the distance between the second portion 216 and the inner wall of the cylinder bore 11 is greater than the distance between the first portion 215 and the inner wall of the cylinder bore 11, so that the inner circumferential surface 212 of the second portion 216 together forms the cylinder bore flow channel 213.

[0087] Combine Figure 2 and Figure 3 The inner circumferential surface 212 of the first portion 215 is in close contact with the first side wall 121, while the inner circumferential surface 212 of the second portion 216 is spaced apart from the first side wall 121. The end surface of the first portion 215 away from the second portion 216 contacts the bottom of the mounting groove 12. The second portion 216 is closer to the cylinder head than the first portion 215. The cylinder bore flow channel 213 is located near the junction of the cylinder block 10 and the cylinder head. The temperature of the cylinder bore 11 at this location is relatively high, and the cylinder bore flow channel 213 can effectively dissipate heat there. The temperature of the cylinder bore 11 at the location corresponding to the first portion 215 is relatively low, so the heat dissipation requirement is not high and no cooling channel is required.

[0088] Optional, reference Figure 3 and Figure 5 The cylinder water inlet 214 is provided in the first portion 215, and the inner circumferential surface 212 of the first portion 215 is provided with a first connecting groove 217 that connects the cylinder water inlet 214 and the cylinder flow channel 213. Because the thickness of the first portion 215 is thicker than that of the second portion 216, the cylinder water inlet 214 is provided in the first portion 215, which causes less damage to the structure and ensures structural strength. The first connecting groove 217 can extend in the direction of the axis A, and the bottom wall of the first connecting groove 217 can be flush with the inner circumferential surface 212 of the second portion 216. By simply providing the first connecting groove 217, the cylinder water inlet 13 and the cylinder flow channel 213 can be connected, resulting in a simple structure.

[0089] Optional, reference Figure 3 and Figure 5The first portion 215 further defines a cylinder water outlet hole 218 extending through the inner circumferential surface 212 and the outer circumferential surface 211. The inner circumferential surface 212 of the first portion 215 further defines a second connecting groove 219 connecting the cylinder water outlet hole 218 and the cylinder flow passage 213. Similar to the cylinder water inlet hole 214 defined in the first portion 215, the cylinder water outlet hole 218 defined in the first portion 215 minimizes structural damage and ensures structural strength. The second connecting groove 219 can extend in the direction of the axis A, and the bottom wall of the second connecting groove 219 can be flush with the inner circumferential surface 212 of the second portion 216. Simply defining the second connecting groove 219 allows for communication between the cylinder water outlet hole 218 and the cylinder flow passage 213, resulting in a simple structure.

[0090] Combine Figure 1 and Figure 3 The cylinder bore water outlet hole 218 is used to communicate with the first water outlet 14 of the cylinder body 10 to guide the cooling water out of the cylinder bore flow channel 213 and into the thermostat 50.

[0091] Optional, reference Figure 3 The water jacket partition 20 also includes a cylinder hole water outlet isolation rib 25, which is arranged on the outer peripheral surface 211 of the plate body 21. The cylinder hole water outlet isolation rib 25 and the outer peripheral surface 211 of the plate body 21 are enclosed to form a cylinder hole water outlet flow channel 251, and the cylinder hole water outlet hole 218 is connected to the cylinder hole water outlet flow channel 251.

[0092] Combine Figures 1 to 3 The cylinder bore water outlet rib 25 surrounds the outer periphery of the cylinder bore water outlet hole 218. It can be an annular shape connected end to end, or, similar to the cylinder head inlet rib 22, it can extend to the end surface of the plate body 21 near the cylinder head and be sealed by the cylinder gasket. The cylinder bore water outlet rib 25 is in close contact with the second side wall 122, so that the outer peripheral surface 211 of the plate body 21, the cylinder bore water outlet rib 25, and the second side wall 122 together enclose the cylinder bore water outlet flow channel 251. The first water outlet 14 of the cylinder body 10 is connected to the cylinder bore water outlet flow channel 251. Cooling water flowing from the cylinder bore flow channel 213 through the cylinder bore water outlet hole 218 is collected in the cylinder bore water outlet flow channel 251 and then flows out of the first water outlet 14.

[0093] In another embodiment, please refer to Figure 6 ,and Figures 3 to 5 The illustrated embodiments are basically the same, with the difference being that the water jacket partition 20 further includes a cooling water intake isolating rib 23, which is disposed on the outer peripheral surface 211 of the plate body 21, and is connected to the cylinder head water inlet isolating rib 22. The cooling water intake isolating rib 23 and the outer peripheral surface 211 of the plate body 21 together enclose a cooling water flow channel 231, which is connected to the cylinder bore water inlet hole 214.

[0094] Specifically, the connection method between the cooling water inlet rib 23 and the plate body 21 can be referred to the connection method of the cylinder head water inlet rib 22 described above, and will not be repeated here. The cooling water inlet rib 23 has a semi-enclosed structure, with its two ends connected to the hole edge rib 221 of the cylinder head water inlet rib 22. In this embodiment, the hole edge rib 221 that semi-encloses the cylinder bore water inlet hole 214 is broken away from the guide rib 222 to form a gap. The two ends of the cooling water inlet rib 23 are respectively connected to the two ends of the hole edge rib 221 at the gap. In this way, the cooling water flow channel 231 is connected to the cylinder bore water inlet hole 214 and the cylinder head water inlet flow channel 224.

[0095] Combine Figure 1 and Figure 6 The cooling water inlet passage 231 is connected to the cooling water inlet 15 of the cylinder block 10. The cooling water delivered by the water pump 30 to the cylinder bore water inlet 13 is divided into three paths. The first path enters the cylinder bore flow passage 213 through the cylinder bore water inlet hole 214 to cool the cylinder block 10 (cylinder bore 11). The second path enters the cylinder head through the cylinder head water inlet passage 224 to cool the cylinder head. The third path enters the oil cooler 40 through the cooling water inlet passage 231, the cooling water inlet 15, and the cooling water inlet 41 to cool the oil cooler 40.

[0096] Therefore, by setting the machine cooling water intake flow barrier rib 23 to form the machine cooling water intake flow channel 231, the cooling water can also flow into the oil cooler 40 to cool the oil cooler 40. The three-way flow of cooling water is realized through a water jacket partition 20, saving the pipeline connected to the oil cooler 40 and having a simple structure.

[0097] Optional, reference Figure 6 The water jacket partition 20 also includes a cooling water outlet isolating rib 24, which is arranged on the outer peripheral surface 211, and the cooling water outlet isolating rib 24 is spaced apart from the cooling water inlet isolating rib 23. The cooling water outlet isolating rib 24 is annular and connected end to end and is enclosed together with the outer peripheral surface 211 to form a cooling water outlet flow channel 241. The cooling water outlet flow channel 241 and the cooling water inlet flow channel 231 are used to communicate through the oil cooler 40.

[0098] The connection method of the cooling water outlet isolating rib 24 and the plate 21 can refer to the connection method of the cylinder head inlet isolating rib 22, which will not be repeated here. The cooling water outlet isolating rib 24 is a ring connected end to end, and the cooling water outlet flow channel 241 is a closed flow channel.

[0099] Combine Figure 1 and Figure 6The cooling water return port 16 is connected to the cooling water outlet channel 241, and the second water outlet 17 is also connected to the cooling water outlet 42. The cooling water outlet 42 of the oil cooler 40 is connected to the cooling water return port 16, and the second water inlet 52 of the thermostat 50 is connected to the second water outlet 17. By providing the cooling water outlet isolating rib 24, the cooling water outlet 42 of the oil cooler 40 is connected to the cooling water outlet channel 241 through the cooling water return port 16, and the cooling water outlet channel 241 is further connected to the second water inlet 52 of the thermostat 50 through the second water outlet 17. This saves the connecting pipes between the oil cooler 40 and the thermostat 50, simplifying the structure of the engine.

[0100] After the cooling water enters the oil cooler 40 through the machine cooling water inlet channel 231, the machine cooling water inlet 15, and the machine cooling water inlet 41 to cool the oil cooler 40, it enters the machine cooling water outlet channel 241 from the machine cooling water outlet 42 and the machine cooling return water port 16. The cooling water in the machine cooling water outlet channel 241 enters the thermostat 50 through the second water outlet 17 and the second water inlet 52. Combined with the aforementioned cylinder head water inlet channel 224, the cooling water enters the cylinder head and returns to the thermostat 50, and the water in the cylinder bore channel 213 flows to the thermostat 50. The thermostat 50 can control the cooling water in each path to achieve temperature control of the engine.

[0101] In the description of the embodiments of the present invention, it should be noted that the orientation or positional relationship of terms such as "center", "up", "down", "left", "right", "vertical", "horizontal", "inside" and "outside" is based on the orientation or positional relationship described in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0102] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of the rights of the present invention. Ordinary technicians in this field can understand that all or part of the processes of the above embodiment and equivalent changes made in accordance with the claims of the present invention are still within the scope of the present invention.

Claims

1. A water jacket partition, characterized in that: The water jacket partition is used to be arranged on the cylinder body, and the water jacket partition includes: The plate body includes an inner peripheral surface and an outer peripheral surface facing each other, wherein the inner peripheral surface forms a cylinder bore flow channel; a cylinder head water inlet isolating rib, disposed on the outer peripheral surface, the cylinder head water inlet isolating rib and the outer peripheral surface together enclosing a cylinder head water inlet flow channel, the cylinder head water inlet flow channel being used to connect to the cylinder head; The plate body is further provided with a cylinder bore water inlet hole penetrating the inner peripheral surface and the outer peripheral surface, and the cylinder bore water inlet hole is communicated with the cylinder bore flow channel and the cylinder head water inlet flow channel.

2. The water jacket partition according to claim 1, characterized in that: The cylinder head water inlet isolation rib includes a hole edge rib, and the hole edge rib is arranged at the edge of the cylinder hole water inlet hole and semi-surrounds the cylinder hole water inlet hole.

3. The water jacket partition according to claim 2, characterized in that: The plate body extends along an axis; the cylinder head water inlet isolation rib further includes a guide rib, the guide rib is connected to the hole edge rib, and the guide rib extends along the circumference of the plate body.

4. The water jacket separator according to claim 3, characterized in that: The cylinder head water inlet isolation rib also includes a water outlet rib, which is connected to the guide rib and extends along the axial direction of the plate body. The end of the water outlet rib away from the guide rib extends to the axial end surface of the plate body; the cylinder head water inlet flow channel includes a water outlet formed by the water outlet rib and the outer peripheral surface.

5. The water jacket partition according to claim 4, characterized in that: The hole edge ribs are smoothly connected to the guide ribs, and / or the water outlet ribs are smoothly connected to the guide ribs.

6. The water jacket separator according to claim 4, characterized in that: The guide ribs include two arranged at intervals in the axial direction of the plate body, and the water outlet ribs include two arranged at intervals in the circumferential direction of the plate body.

7. The water jacket baffle according to any one of claims 1 to 6, characterized in that: The plate body is in a ring shape connected end to end and adapted to the cylinder hole of the cylinder body.

8. The water jacket baffle according to claim 7, characterized in that: The plate body includes a first part and a second part connected in the axial direction of the cylinder hole, the first part and the second part are both ring-shaped and connected end to end, the outer circumferential surface of the first part is flush with the outer circumferential surface of the second part, and the inner circumferential surface of the second part is recessed relative to the inner circumferential surface of the first part, so that the first part forms a step surface facing the end face of the second part, and the inner circumferential surface of the second part and the step surface enclose the cylinder hole flow channel.

9. The water jacket separator according to claim 8, characterized in that: The cylinder water inlet hole is provided in the first part, and the inner peripheral surface of the first part is provided with a first connecting groove communicating with the cylinder water inlet hole and the cylinder flow channel.

10. The water jacket separator according to claim 8, characterized in that: The first part is further provided with a cylinder water outlet hole penetrating the inner circumferential surface and the outer circumferential surface. The inner circumferential surface of the first part is further provided with a second connecting groove communicating with the cylinder water outlet hole and the cylinder flow channel.

11. The water jacket separator according to claim 10, characterized in that: The water jacket partition further includes a cylinder hole water outlet isolating rib, which is arranged on the outer peripheral surface of the plate body. The cylinder hole water outlet isolating rib and the outer peripheral surface of the plate body are enclosed to form a cylinder hole water outlet flow channel, and the cylinder hole water outlet hole is connected to the cylinder hole water outlet flow channel.

12. The water jacket baffle according to any one of claims 1 to 6, characterized in that: The water jacket baffle also includes a machine cooling water intake isolating rib, which is arranged on the outer peripheral surface and connected to the cylinder head water inlet isolating rib. The machine cooling water intake isolating rib and the outer peripheral surface together enclose a machine cooling water intake flow channel, and the machine cooling water intake flow channel is connected to the cylinder bore water inlet hole.

13. The water jacket separator according to claim 12, characterized in that: The water jacket partition also includes a machine cooling water outlet isolation rib, which is arranged on the outer peripheral surface, and the machine cooling water outlet isolation rib is spaced apart from the machine cooling water intake isolation rib. The machine cooling water outlet isolation rib is in a ring shape connected end to end and is together with the outer peripheral surface to form a machine cooling water outlet flow channel. The machine cooling water outlet flow channel and the machine cooling water intake flow channel are used to communicate through the oil cooler.

14. An engine, characterized in that: The invention comprises a cylinder body and a water jacket baffle according to any one of claims 1 to 13, wherein the cylinder body is provided with a cylinder hole, a mounting groove and a cylinder hole water inlet, the mounting groove surrounds the outer circumference of the cylinder hole, the water jacket baffle is received in the mounting groove and cooperates with the side wall of the mounting groove to form the cylinder hole flow channel and the cylinder head water inlet flow channel, and the cylinder hole water inlet is connected to the cylinder hole water inlet hole of the water jacket baffle.

15. The engine according to claim 14, characterized in that The mounting groove includes a first side wall and a second side wall opposite to each other, the first side wall is close to the cylinder hole, the inner circumferential surface of the first part of the plate body of the water jacket partition is in close contact with the first side wall, and the inner circumferential surface of the second part is spaced apart from the first side wall to form the cylinder hole flow channel, and the cylinder head water inlet isolation rib of the water jacket partition is in close contact with the second side wall to form the cylinder head water inlet flow channel.

16. The engine according to claim 14, characterized in that The engine further includes a water pump, which is communicated with the water inlet of the cylinder bore.

17. A vehicle, characterized in that: Comprising an engine as claimed in any one of claims 14 to 16.

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