An engine

Abstract

The utility model provides a kind of engine, including cylinder cover, cylinder body, water pump, oil cooler, water inlet pipe, distributor, backwater pipe, thermostat, distributor includes independent water inlet cavity and backwater cavity, water inlet cavity is connected with the other end of water inlet pipe, one end of backwater pipe is communicated with backwater cavity, thermostat includes first water inlet, first water outlet, second water outlet connected with water tank, distributor is used to distribute cooling liquid into water inlet cavity to air conditioner, cooling liquid is returned to backwater cavity after passing through air conditioner, again, backwater pipe, first water inlet flows into thermostat.The utility model of a kind of engine carries out centralized distribution to cooling configuration, simplifies body waterway structure, to simplify engine structure, reduce engine water outlet and water inlet connector quantity, realize the modularization of cooling liquid external supply part, improve body heat dissipation.

Description

Technical Field

[0001] This utility model relates to the field of power machinery, and in particular to an engine. Background Technology

[0002] In existing technologies, the increasing demand for high-horsepower engine configurations necessitates the use of engine coolant for cooling or heating in some components. This necessitates multiple coolant output lines to deliver coolant to these components, resulting in a complex and cluttered cooling system. Alternatively, some solutions utilize multiple coolant outlets in the water pump and thermostat to meet the heat exchange needs of multiple components. However, this requires replacing or redesigning the water pump and thermostat, increasing costs and time, and causing significant inconvenience to the cooling system. Furthermore, the engine requires substantial space for the water pump and thermostat. Therefore, the rational design of a distribution scheme for coolant with varying flow rates is crucial.

[0003] Therefore, it is necessary to provide an engine that overcomes the defects mentioned above. Utility Model Content

[0004] The purpose of this invention is to provide an engine that simplifies the engine body water channel structure by centrally distributing the cooling configuration of the engine or the whole machine, thereby simplifying the engine structure, reducing the number of water outlet and inlet joints on the engine structure, realizing the modularization of the external coolant supply part, and improving the heat dissipation of the engine body.

[0005] According to one aspect of the present invention, an engine is provided, comprising a cylinder head, a cylinder block, a water pump, an oil cooler, an inlet pipe, a distributor, a return pipe, and a thermostat, with the exhaust side of the engine cylinder as the rear. The cylinder block is located below and connected to the cylinder head. The water pump is located on the right side of the cylinder block to pump coolant into the cylinder block. The oil cooler is located at the rear of the cylinder block and connected to the cylinder block. Coolant flowing through the cylinder block into the oil cooler is used for heat exchange. The oil cooler includes an oil cooler outlet, one end of the inlet pipe is connected to the oil cooler outlet, and the distributor includes independent inlet pipes. The system includes a water chamber and a return water chamber. The inlet water chamber is connected to the other end of the inlet pipe, and the return water pipe is connected to the return water chamber at one end. The thermostat includes a first inlet connected to the return water pipe, a first outlet connected to the water pump, and a second outlet connected to the water tank. The distributor distributes the coolant entering the inlet water chamber to the air conditioner. After passing through the air conditioner, the coolant returns to the return water chamber and then flows into the thermostat through the return water pipe and the first inlet. The coolant flowing into the thermostat enters the water pump through the first outlet, or the coolant flowing into the thermostat enters the water tank through the second outlet. This design centrally distributes the engine or overall cooling configuration. The number of inlet and outlet connectors can be increased or decreased on the distributor according to different configuration requirements, simplifying the engine's water channel structure and thus simplifying the engine structure. This reduces the number of engine outlet and inlet connectors, modularizes the external coolant supply section, and improves engine heat dissipation.

[0006] Preferably, the water inlet chamber includes at least two supply outlets for discharging coolant to the outside. The coolant flows to the air conditioner through the supply outlets, and the supply outlets are also connected to the post-treatment system to enable the distributor to deliver coolant to the post-treatment system.

[0007] Preferably, the distributor can also be connected to an air pump, urea, etc., to distribute coolant to the air pump, urea, etc. Further, the coolant reaches the supply outlet through the inlet chamber, and flows into the air pump, urea, etc., through the supply outlet.

[0008] Preferably, the return water chamber includes at least two return inlets for inputting coolant into the return water chamber. The coolant flowing into the air conditioner is output by the air pump and flows into the return water chamber through the return inlets. The return inlets are also connected to the post-processor to return the coolant flowing through the post-processor back to the distributor.

[0009] Preferably, the coolant flowing into the air pump, urea, and other components enters the return water chamber of the distributor through the return inlet. This achieves heat exchange circulation for components requiring cooling or heating.

[0010] Preferably, the distributor is fixed to the left side of the cylinder head. This design facilitates the connection between the distributor and other components requiring cooling, reduces the complexity of cooling path layout, and achieves integration.

[0011] Preferably, the distributor further includes an output connector connected to the supply outlet and an input connector connected to the return inlet. Furthermore, switches for adjusting flow rate or opening / closing the flow path can be installed on the output and input connectors. This design allows for adjusting the coolant flow rate as needed.

[0012] Preferably, the distributor further includes bolt holes for connection to the cylinder head, the bolt holes being located horizontally at both ends of the distributor.

[0013] Preferably, the thermostat also includes a second inlet connected to the cylinder head, through which coolant from the cylinder block flows to the cylinder head and then into the thermostat.

[0014] Preferably, the return water pipe is located on the vent side and is arranged in a left-right direction. This design makes the pipeline layout simpler and more compact.

[0015] Preferably, the oil cooler includes a cooler housing and a radiator placed in the cooler housing. The radiator divides the cooler housing into an interconnected oil cooler inlet chamber and an oil cooler outlet chamber. The oil cooler outlet is located above the cooler housing and is connected to the outlet chamber. The coolant flows out of the oil cooler through the oil cooler inlet chamber, the oil cooler outlet chamber, and then through the oil cooler outlet.

[0016] Preferably, the oil cooler further includes a deflector plate located above the cooler housing and inside the water inlet chamber.

[0017] The present invention provides an engine that simplifies the engine's cooling structure through modularization of the external cooling system, centrally distributes the cooling configuration of the engine or the whole machine, reduces the number of engine water outlet and inlet joints, and improves the heat dissipation of the engine body. Attached Figure Description

[0018] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0019] Figure 1 A three-dimensional schematic diagram of the engine;

[0020] Figure 2 This is a schematic diagram of the distributor's cooling water circuit;

[0021] Figure 3 Diagram of the distributor;

[0022] Figure 4 For the distributor along Figure 3 Sectional view at the location shown in AA;

[0023] Figure 5 This is a schematic diagram of an oil cooler;

[0024] Figure 6 This is a schematic diagram of the water circulation path in the cooling circulation system.

[0025] Explanation of icon numbers:

[0026] 1. Cylinder head; 2. Thermostat; 3. Oil cooler; 4. Water pump; 5. Cylinder block; 6. Inlet pipe; 7. Distributor; 8. Return pipe; 9. Air pump; 201. Second outlet; 202. First inlet; 203. Second inlet; 301. Engine cooler outlet; 302. Cooler housing; 303. Drain plate; 304. Engine cooler inlet chamber; 305. Radiator; 306. Engine cooler outlet chamber; 701. Input connector; 702. Output connector; 703. Switch; 704. Bolt hole; 705. Inlet chamber; 706. Return chamber; 707. Liquid supply outlet; 708. Liquid return inlet. Detailed Implementation

[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] To keep the drawings concise, only the parts relevant to this invention are shown schematically in each figure, and they do not represent the actual structure of the product. Furthermore, for ease of understanding, in some figures, only one of the components with the same structure or function is schematically depicted, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one."

[0029] It should also be further understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0030] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0032] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the specific implementation methods of this utility model will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of this utility model. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.

[0033] The embodiments for carrying out this application will be described based on the accompanying drawings. It should be noted that, in the following description, the direction of F is set to "forward" (refer to...). Figure 1 Set the direction of B to "back" (refer to...). Figure 1 Set the direction of L to "left" (refer to...). Figure 1 Set the direction of R to "right" (see reference). Figure 1 ).

[0034] See Figures 1 to 6 As shown, this embodiment provides an engine, with the exhaust side of the engine cylinder as the rear, including a cylinder head 1, a cylinder block 5, a water pump 4, an oil cooler 3, an inlet pipe 6, a distributor 7, a return pipe 8, and a thermostat 2. The cylinder block 5 is located below the cylinder head 1 and communicates with the cylinder head 1. The water pump 4 is located on the right side of the cylinder block 5 to pump coolant to the cylinder block 5. The oil cooler 3 is located on the rear side of the cylinder block 5 and connected to the cylinder block 5. The coolant flowing through the cylinder block 5 flows into the oil cooler 3 for heat exchange. The oil cooler 3 includes an oil cooler outlet 301, and one end of the inlet pipe 6 is connected to the oil cooler outlet 301. The distributor 7 includes independent inlet chambers 705 and return chambers 706. The inlet chamber 705 is connected to the other end of the inlet pipe 6, and one end of the return pipe 8 is connected to the return chamber 706. The thermostat 2 includes a first inlet 202 connected to the return pipe 8, a first outlet (not shown) connected to the water pump 4, and a second outlet 201 connected to the water tank. The distributor 7 is used to distribute the coolant entering the inlet chamber 705 to the air conditioner (not shown). The coolant returns to the return chamber 706 after passing through the air conditioner, and then flows into the thermostat 2 through the return pipe 8 and the first inlet 202. The coolant flowing into the thermostat 2 enters the water pump 4 through the first outlet, or the coolant flowing into the thermostat 2 enters the water tank through the first outlet 201. This allows for centralized distribution of cooling configurations for the engine or the entire machine. The number of inlet and outlet connectors can be increased or decreased on the distributor 7 according to different configuration requirements, simplifying the engine water channel structure, thereby simplifying the engine structure, reducing the number of engine water inlet and outlet connectors, realizing the modularization of the external coolant supply section, and improving engine heat dissipation.

[0035] See Figure 1As shown, the distributor 7 is fixed to the left side of the cylinder head 1, which facilitates the connection between the distributor 7 and the cooling components on the whole machine, reduces the difficulty of arranging the cooling flow path, and achieves integration. The return water pipe 8 is located on the exhaust side and is arranged in the left-right direction, making the pipeline layout simpler and more compact.

[0036] See Figure 2 As shown, the thermostat 2 also includes a second water inlet 203 connected to the cylinder head 1. The coolant of the cylinder block 5 flows to the cylinder head 1 and reaches the second water inlet 203 through the cylinder head 1 return water circuit on the engine block, and enters the thermostat 2 through the second water inlet 203.

[0037] See Figures 2 to 4 As shown, the water inlet chamber 705 includes at least two supply outlets 707 for supplying coolant to the outside. The coolant flows to the air conditioner through the supply outlets 707. The supply outlets 707 can also be connected to other configurations that require cooling, such as aftertreatment and urea, and the coolant is delivered out by connecting to the supply outlets 707.

[0038] The return water chamber 706 includes at least two return inlets 708 for inputting coolant into the return water chamber 706. The coolant flowing into the air conditioner is output by the air pump 9 and flows to the return water chamber 706 through the return inlets 708. The return inlets 708 can also be connected to other configurations that require cooling, such as after-treatment and urea. The coolant flows out from the supply outlet 707 and is delivered to the configuration that needs cooling. After that, it returns to the return water chamber 706 of the distributor 7 through the return inlets 708, thereby realizing the circulation of coolant.

[0039] The distributor 7 also includes an output connector 702 connected to the supply outlet 707 and an input connector 701 connected to the return inlet 708. Switches 703 for adjusting flow rate or opening / closing the flow path can be installed on the output connector 702 and the input connector 701 to adjust the coolant flow rate as needed.

[0040] The distributor 7 also includes bolt holes 704 for connecting to the cylinder head 1, the bolt holes 704 being located horizontally at both ends of the distributor 7.

[0041] The distributor 7 can also be connected to the air pump 9, urea, etc., to distribute coolant to the air pump 9, urea, and other components requiring heat exchange. The coolant flows through the inlet chamber 705 to the supply outlet 707, and then flows into the air pump 9, urea, etc. The coolant flowing into the air pump 9, urea, etc., enters the return chamber 706 of the distributor 7 through the return inlet 708, thus achieving heat exchange circulation for components requiring cooling or heating.

[0042] See Figure 5As shown, the oil cooler 3 includes a cooler housing 302 and a radiator 305 disposed in the cooler housing 302. The radiator 305 divides the cooler housing 302 into an interconnected cooler inlet chamber 304 and a cooler outlet chamber 306. The cooler outlet 301 is located above the cooler housing 302 and communicates with the outlet chamber. Coolant flows through the cooler inlet chamber 304 and the cooler outlet chamber 306, and then flows out of the oil cooler 3 through the cooler outlet 301. The oil cooler 3 also includes a guide plate 303 disposed above the cooler housing 302 and within the inlet chamber 705 to improve heat dissipation.

[0043] See Figure 6 As shown, this embodiment also provides an exemplary cooling circulation system, comprising: water pump 4 — cylinder block 5 oil cooler 3 — distributor 7 (inlet chamber 705) — cooling configuration (such as air pump 9, air conditioner, aftertreatment, or one or more other cooling configurations) — distributor 7 (return chamber 706) — thermostat 2 — water pump 4 / water tank. The coolant entering the cylinder block 5 through the water pump 4 can also reach the distributor 7 via the cylinder head 1. The coolant passing through the cooling configuration (such as air pump 9, air conditioner, aftertreatment, or one or more other cooling configurations) can also return directly to the water pump 4 or the water tank depending on the simplicity of the arrangement. The cooling configuration can also selectively have coolant input only through the distributor 7 or only have coolant returned to the distributor 7.

[0044] The present invention provides an engine that simplifies the engine's cooling structure through modularization of the external cooling system, centrally distributes the cooling configuration of the engine or the whole machine, reduces the number of engine water outlet and inlet joints, and improves the heat dissipation of the engine body.

[0045] It will be apparent to those skilled in the art that various modifications and variations can be made to the exemplary embodiments of the present invention without departing from the spirit and scope of the present invention. Therefore, it is intended that the present invention cover modifications and variations falling within the scope of the appended claims and their equivalents.

Claims

1. An engine, with the exhaust side of the engine cylinder as the rear, characterized in that, include: Cylinder head; A cylinder block, which is located below the cylinder head and communicates with the cylinder head; A water pump, located on the right side of the cylinder block, for pumping coolant into the cylinder block; An oil cooler is provided, which is located at the rear of the cylinder block and connected to the cylinder block. Coolant from the cylinder block flows into the oil cooler for heat exchange. The oil cooler includes an oil cooler outlet. A water inlet pipe, one end of which is connected to the coolant outlet. A distributor, comprising an independent inlet chamber and a return chamber, wherein the inlet chamber is connected to the other end of the inlet pipe; A return water pipe, one end of which is connected to the return water chamber; A thermostat, comprising a first inlet connected to the return water pipe, a first outlet connected to the water pump, and a second outlet connected to the water tank; The distributor is used to distribute the coolant entering the inlet chamber to the air conditioner. The coolant returns to the return chamber after passing through the air conditioner, and then flows into the thermostat through the return pipe and the first inlet. The coolant flowing into the thermostat enters the water pump through the first outlet, or the coolant flowing into the thermostat enters the water tank through the second outlet.

2. An engine as described in claim 1, characterized in that, The water inlet chamber includes at least two supply outlets for discharging coolant to the outside. The coolant flows to the air conditioner through the supply outlets. The supply outlets are also connected to the post-processor to enable the distributor to supply coolant to the post-processor.

3. An engine as described in claim 2, characterized in that, The return water chamber includes at least two return inlets for inputting coolant into the return water chamber. The coolant flowing into the air conditioner is output by the air pump and flows into the return water chamber through the return inlets. The return inlets are also connected to the post-processor to return the coolant flowing through the post-processor back to the distributor.

4. An engine as described in claim 3, characterized in that, The distributor is fixed to the left side of the cylinder head.

5. An engine as described in claim 4, characterized in that, The distributor also includes an output connector connected to the liquid supply outlet and an input connector connected to the liquid return inlet.

6. An engine as described in claim 5, characterized in that, The distributor also includes bolt holes for connection to the cylinder head, the bolt holes being located horizontally at both ends of the distributor.

7. An engine as described in claim 6, characterized in that, The thermostat also includes a second inlet connected to the cylinder head, through which the coolant from the cylinder block flows to the cylinder head and then into the thermostat.

8. An engine as described in claim 1 or 7, characterized in that, The return water pipe is located on the exhaust side and is arranged in the left-right direction.

9. An engine as described in claim 8, characterized in that, The oil cooler includes a cooler housing and a radiator disposed in the cooler housing. The radiator divides the cooler housing into an interconnected oil cooler inlet chamber and an oil cooler outlet chamber. The oil cooler outlet is located above the cooler housing and is connected to the outlet chamber. The coolant flows out of the oil cooler through the oil cooler inlet chamber, the oil cooler outlet chamber, and then through the oil cooler outlet.

10. An engine as described in claim 9, characterized in that, The oil cooler also includes a drain plate located above the cooler housing and inside the water inlet chamber.

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