A V-type two-cylinder engine lubricating system and a V-type two-cylinder engine

Abstract

The utility model relates to a V type two -cylinder engine lubricating system and V type two -cylinder engine, the utility model discloses an oil sump, oil suction pipe, oil pump, oil filter and set up in the main oil way of engine body in the utility model, oil pump is arranged in the front end of engine and is driven by the crankshaft of engine, and the oil sump contains oil, and the oil suction of oil pump is communicated with the oil in the oil sump through oil suction pipe, oil filter is installed on the oil sump and is arranged vertically, the oil sump is equipped with the oil filter oil inlet channel of oil filter oil outlet channel and the communication of main oil way with the pressure oil port of oil pump, and the oil filter oil inlet channel and oil filter oil outlet channel are communicated with the oil inlet hole and oil outlet hole of oil filter respectively, the utility model solves the problem that the oil suction pipe line is longer by the camshaft drive of conventional oil pump and solves the problem that the horizontal space is big when the conventional oil filter is installed on the body, and the problem of oil leakage pollution surrounding parts is solved when dismounting.

Description

Technical Field

[0001] This utility model relates to the field of engine design technology, and in particular to a lubrication system for a V-type two-cylinder engine and a V-type two-cylinder engine. Background Technology

[0002] In a conventional V-type two-cylinder engine, the oil pump is typically driven by the camshaft. When the oil pump is working, it draws oil from the oil pan into the oil pump chamber through a suction pipe, and then pressurizes and delivers it to the lubrication elements. The camshaft is usually positioned higher than the crankshaft, so a very long suction pipe is required to draw oil from the oil pan into the oil pump.

[0003] However, a longer oil suction pipe brings two problems: 1. The cost and weight of the pipe are higher; 2. When the engine restarts and the oil pump pumps oil, the oil suction pipe needs to be filled with oil before being pressurized and delivered to the lubrication elements. The longer the oil suction pipe, the longer the filling time will be, and therefore the longer the oil pressure build-up time will be.

[0004] Furthermore, conventional oil filters are mounted horizontally on the engine block, resulting in a non-compact structure and a large lateral footprint. Additionally, during maintenance and repair, removing the oil filter can easily cause oil to leak from the filter housing, contaminating surrounding parts. Summary of the Invention

[0005] To address this, the present invention provides a V-type two-cylinder engine lubrication system and a V-type two-cylinder engine. The oil pump is directly driven by the crankshaft, and the oil suction pipe can be set to be shorter, solving the problem of the long oil suction pipe caused by the conventional oil pump being driven by the camshaft. In addition, the oil filter is arranged on the oil pan and is placed vertically, solving the problem of the large lateral space required for the conventional oil filter to be installed on the engine block, and the problem of oil leakage during disassembly contaminating surrounding parts.

[0006] To solve the above-mentioned technical problems, this utility model provides a V-type two-cylinder engine lubrication system, including: an oil pan, an oil suction pipe, an oil pump, an oil filter, and a main oil passage disposed in the engine block; The oil pump is located at the front of the engine and is driven by the engine crankshaft. The oil pan contains oil, and the oil pump's suction port is connected to the oil in the oil pan through the suction pipe. The oil filter is installed on the oil pan and is arranged vertically. The oil pan is provided with an oil filter inlet passage that communicates with the oil pressure port of the oil pump and an oil filter outlet passage that communicates with the main oil passage. The oil filter inlet passage and the oil filter outlet passage are respectively connected to the oil inlet and oil outlet of the oil filter. The oil pressurized by the oil pump is filtered by the oil filter and then enters the main oil passage to lubricate engine components.

[0007] In one embodiment of this utility model, the upper end of the oil suction pipe is connected to the housing of the oil pump, and the lower end of the oil suction pipe is provided with an oil suction plate extending into the oil pan.

[0008] In one embodiment of this utility model, the oil pan is a cast aluminum oil pan.

[0009] In one embodiment of this utility model, the oil inlet and outlet of the oil filter both open upwards.

[0010] This utility model also provides a V-type two-cylinder engine, including the aforementioned V-type two-cylinder engine lubrication system.

[0011] The above-mentioned technical solution of this utility model has the following advantages compared with the prior art: This utility model discloses a V-type two-cylinder engine lubrication system and a V-type two-cylinder engine. The oil pump is directly driven by the crankshaft, allowing for a very short oil suction pipe. The short design of the oil suction pipe between the oil pump and the oil pan reduces the cost of the suction pipe and shortens the oil pump's oil pressure build-up time. Furthermore, the oil filter is mounted on the oil pan, vertically positioned with its inlet and outlet ports facing upwards. This compact structure solves the problem of large lateral space required for conventional oil filters mounted on the engine block, and the risk of oil leakage and contamination of surrounding parts during disassembly. Attached Figure Description

[0012] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0013] Figure 1 This is a schematic diagram of the structure of the lubrication system for a V-type two-cylinder engine according to this utility model.

[0014] Explanation of reference numerals on the accompanying drawings: 100. Oil pan; 200. Oil suction pipe; 300. Oil pump; 400. Oil filter; 500, crankshaft; 600. Camshaft. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention.

[0016] In this utility model, when directions (up, down, left, right, front, and back) are described, it is only for the convenience of describing the technical solution of this utility model, and does not indicate or imply that the technical features referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this utility model.

[0017] In this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," "exceeding," etc. are understood to exclude the stated number; "above," "below," "within," etc. are understood to include the stated number. In the description of this utility model, if "first" or "second" is used, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the order of the indicated technical features.

[0018] In this utility model, unless otherwise explicitly defined, terms such as "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a direct connection or an indirect connection through an intermediate medium; a fixed connection, a detachable connection, or an integrally formed connection; a mechanical connection, an electrical connection, or a connection capable of mutual communication; or the internal connection of two components or the interaction between two components. Those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model based on the specific content of the technical solution.

[0019] Reference Figure 1 As shown, this utility model discloses a V-type two-cylinder engine lubrication system, which is applied to a V-type two-cylinder engine and includes: a camshaft 600, an oil pan 100, an oil suction pipe 200, an oil pump 300, an oil filter 400, and a main oil passage disposed in the engine block. The oil pump 300 is located at the front of the engine and is driven by the crankshaft 500 of the engine (driving the rotor inside the oil pump 300). The oil pan 100 contains oil, and the oil suction port of the oil pump 300 is connected to the oil in the oil pan 100 through the oil suction pipe 200. The oil filter 400 is mounted on the oil pan 100 and arranged vertically; The oil pan 100 is provided with an oil filter inlet passage that communicates with the oil pressure port of the oil pump 300 and an oil filter outlet passage that communicates with the main oil passage. The oil filter inlet passage and the oil filter outlet passage are respectively connected to the oil inlet and oil outlet of the oil filter 400. The oil pressurized by the oil pump 300 is filtered by the oil filter 400 and then enters the main oil passage to lubricate engine components.

[0020] In one embodiment, the upper end of the oil suction pipe 200 is connected to the housing of the oil pump 300, and the lower end of the oil suction pipe 200 is provided with an oil suction plate extending into the oil pan 100. This arrangement allows for a shortened axial length of the oil suction pipe 200 between the oil pump 300 and the oil suction plate, thereby reducing the length of the oil suction pipe 200 and shortening the time it takes for the oil pump 300 to build up oil pressure.

[0021] In one embodiment, the oil pan 100 is made of cast aluminum. Furthermore, the oil filter inlet and outlet passages can be integrally cast within the oil pan 100 housing as built-in flow channels to reduce the number of external pipes and improve structural compactness.

[0022] In one embodiment, the oil filter 400 is fixed to the oil pan 100 by a mounting base with the mounting surface facing upwards. The central axis of the oil filter 400 is arranged substantially vertically, and both the oil inlet and outlet of the oil filter 400 open upwards to reduce oil leakage and contamination of surrounding parts when the oil filter 400 is disassembled.

[0023] With the above configuration, the oil pump 300 is directly driven by the crankshaft 500, allowing for a very short oil suction pipe 200. The short design of the oil suction pipe 200, located between the oil pump 300 and the oil pan 100, reduces the cost of the oil suction pipe 200 and shortens the oil pressure build-up time of the oil pump 300. Furthermore, the oil filter 400 is mounted on the oil pan 100, placed vertically with its inlet and outlet ports facing upwards. This compact structure solves the problem of large lateral space required for conventional oil filters mounted on the engine block, and the risk of oil leakage and contamination of surrounding parts during disassembly.

[0024] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although this utility model has been described in detail with reference to examples, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A lubrication system for a V-type two-cylinder engine, characterized in that, include: Oil pan (100), oil suction pipe (200), oil pump (300), oil filter (400) and main oil passage located in the engine block; The oil pump (300) is located at the front of the engine and is driven by the crankshaft (500) of the engine. The oil pan (100) contains oil. The oil suction port of the oil pump (300) is connected to the oil in the oil pan (100) through the oil suction pipe (200). The oil filter (400) is mounted on the oil pan (100) and arranged vertically; The oil pan (100) is provided with an oil filter inlet passage that is connected to the oil pressure port of the oil pump (300) and an oil filter outlet passage that is connected to the main oil passage. The oil filter inlet passage and the oil filter outlet passage are respectively connected to the oil inlet and oil outlet of the oil filter (400). The oil pressurized by the oil pump (300) is filtered by the oil filter (400) and then enters the main oil passage to lubricate engine components.

2. The lubrication system for a V-type two-cylinder engine according to claim 1, characterized in that, The upper end of the oil suction pipe (200) is connected to the housing of the oil pump (300), and the lower end of the oil suction pipe (200) is provided with an oil suction plate that extends into the oil pan (100).

3. The lubrication system for a V-type two-cylinder engine according to claim 1, characterized in that, The oil pan (100) is made of cast aluminum.

4. The lubrication system for a V-type two-cylinder engine according to claim 1, characterized in that, The oil filter (400) has both its inlet and outlet ports facing upwards.

5. A V-type two-cylinder engine, characterized in that, Includes the V-type two-cylinder engine lubrication system as described in any one of claims 1-4.

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