CN216950517U

CN216950517U - Engine lubricating oil path structure

Info

Publication number: CN216950517U
Application number: CN202220389691.9U
Authority: CN
Inventors: 张庭嘉; 陈钰龙; 张书晢
Original assignee: Sanyang Industry Co Ltd
Current assignee: Sanyang Industry Co Ltd
Priority date: 2022-02-25
Filing date: 2022-02-25
Publication date: 2022-07-12
Anticipated expiration: 2032-02-25

Abstract

The utility model relates to an engine lubricating oil path structure, which comprises an engine box body and an oil pump. The engine box body comprises a first box body oil pipe, a second box body oil pipe and a box body oil suction pipe. The oil pump is accommodated in the engine box body and is connected with the first box body oil pipe and the second box body oil pipe. The first box oil pipe, the second box oil pipe and the box oil suction pipe are of an integrated structure made of the same material as the engine box, and a tubular oil passage conducting path is formed. Therefore, the integrated structure design of the utility model can effectively reduce the number of parts and the assembly steps of the engine lubricating oil path structure, and can reduce the risk of dropping the oil suction pipe, thereby being an optimal design.

Description

Engine lubricating oil path structure

Technical Field

The present invention relates to an engine lubricating oil path structure, and more particularly to an engine lubricating oil path structure suitable for a motorcycle.

Background

When the engine of the existing four-stroke internal combustion engine runs, proper oil is needed to lubricate and cool all parts. Therefore, an Oil Pump (Oil Pump) must be disposed in the engine crankcase to Pump Oil and bring the Oil to various parts of the engine through an Oil passage. When the engine is running, the oil is continuously pumped and sprayed to various parts for lubrication, and the dropped oil slowly flows back to the bottom chamber (commonly called oil pan) of the engine for storage.

Fig. 3 is a sectional exploded view of a conventional engine lubrication circuit structure. An engine lubricating oil path structure 91 is shown, which mainly comprises an engine case 92, an oil suction pipe 923, an oil pump 93, an oil bottom cover 94, an oil filter 95 and a spring 96. The engine case 92 includes a first case oil pipe 921 and a second case oil pipe 922, the oil suction pipe 923 is fixed to the opening 920 of the oil suction passage at the bottom of the engine case 92, and is sleeved with an oil filter 95 and a spring 96, the spring 96 can compress and fix the oil filter 95 by locking a sealing ring 941 in the oil bottom cover 94, and the bottom of the engine case 92 is sealed to prevent the oil from leaking out of the engine.

When the engine is running continuously, the oil will be sucked into the oil circuit by the oil pump 93 and sprayed to various parts, and the speed of the oil back-flow replenishing engine bottom chamber is relatively slow, so the oil level will be lower than the static level during running, especially when the engine is running at high speed. In order to prevent the oil pump 93 from sucking air through the oil suction port due to the drop of the oil level, and generating air bubbles to cause lubrication failure, the oil suction port is generally designed at the bottommost portion of the engine case 92, and the sucked oil is generally designed to be filtered by the oil strainer 95. However, in the prior art, the oil suction pipe 923 is generally fixed in the structure of the engine housing 92 in a locking or pressing manner, and therefore, the fitting portion of the oil suction pipe 923 and the second housing oil pipe 922 of the engine housing 92 needs to be processed and assembled as required, which results in higher cost.

The present inventors have therefore found that in order to overcome the above-mentioned problems, an engine lubricating oil path structure is needed, and the present invention has been completed through a few studies.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to an engine lubricating oil path structure, in which a tubular oil path conduction path formed by an integral design can effectively reduce the manufacturing and assembly of another oil suction pipe, and no additional machining of a threaded hole or a fastening hole at a joint with an engine case is required, so as to reduce the cost and avoid the risk of dropping the oil suction pipe.

To achieve the above object, the present invention provides an engine lubricating oil path structure including an engine housing and an oil pump. The engine box body comprises a first box body oil pipe, a second box body oil pipe and a box body oil suction pipe. The oil pump is accommodated in the engine box body and is connected with the first box body oil pipe and the second box body oil pipe. The first box oil pipe, the second box oil pipe and the box oil suction pipe are of an integrated structure made of the same material as the engine box, and a tubular oil passage conducting path is formed.

Through the design, the integrated structure can effectively reduce the number of parts and the assembly steps of the engine lubricating oil path structure, can reduce the risk of dropping the oil suction pipe, and is an optimal design.

The engine box body can be provided with an opening, and the opening is covered by an oil bottom cover, so that the engine oil can be discharged from the opening when necessary, and the maintenance and the repair operation are convenient.

The engine lubricating oil path structure can further comprise an engine oil filter screen sleeved on the box oil suction pipe to filter engine oil impurities, so that foreign matters are prevented from being sucked into the engine oil path again to influence the normal operation of a machine part.

The engine lubricating oil path structure can further comprise a spring which is clamped between the engine oil filter screen and the oil bottom cover and tightly presses and fixes the engine oil filter screen.

The engine oil tank can further comprise a sealing ring to improve the sealing performance of the oil bottom cover and prevent engine oil from leaking from a gap between the opening of the engine tank body and the oil bottom cover accidentally.

The oil suction pipe of the box body can be conical, and the optimal shape is designed according to the flow field and the die opening angle of the die.

The oil suction opening of the box body oil suction pipe can be positioned at the lowest point of the box body oil suction pipe, so that the lubricating failure caused by the fact that the oil pump accidentally sucks air to generate bubbles when the liquid level of the oil drops is effectively prevented.

Both the foregoing general description and the following detailed description are exemplary and are intended to provide further explanation of the utility model claimed. Other objects and advantages of the present invention will become apparent from the following detailed description and the accompanying drawings.

Drawings

Fig. 1 is a sectional view of an engine lubricating oil passage structure according to a preferred embodiment of the present invention.

Fig. 2 is a sectional exploded view of an engine lubricating oil passage structure according to a preferred embodiment of the present invention.

Fig. 3 is a sectional exploded view of a conventional engine lubrication circuit structure.

Description of the main element symbols:

1 engine lubricating oil path structure

2 Engine case

20 open pores

21 first box oil pipe

22 second tank oil pipe

23 casing oil suction pipe

230 oil suction opening

3 oil pump

4 oil bottom cover

41 sealing ring

5 Engine oil filter screen

6 spring

91 engine lubricating oil path structure

92 engine box

920 opening

921 first tank oil pipe

922 second box oil pipe

923 oil suction pipe

93 oil pump

94 oil bottom cover

941 sealing ring

95 machine oil filter screen

96 spring

Detailed Description

Fig. 1 and fig. 2 are a sectional assembly view and a sectional exploded view of an engine lubricating oil passage structure according to a preferred embodiment of the present invention. The figure shows an engine lubricating oil path structure 1, which mainly comprises an engine box body 2, an oil pump 3, an oil bottom cover 4, an oil filter screen 5 and a spring 6.

The engine housing 2 includes a first housing oil pipe 21, a second housing oil pipe 22 and a housing oil suction pipe 23, the housing oil suction pipe 23 of the present embodiment is conical, and has an optimal shape according to the flow field and the mold opening angle, and the oil suction opening 230 of the housing oil suction pipe 23 is located at the lowest point of the housing oil suction pipe 23, which effectively prevents the oil pump 3 from accidentally sucking air to generate bubbles when the oil level drops, which may cause lubrication failure. The utility model is mainly characterized in that: the first tank oil pipe 21, the second tank oil pipe 22 and the tank suction pipe 23 are formed of the same material as the engine tank 2, and form a tubular oil passage conduction path. In addition, the engine case 2 is provided with an opening 20, and the opening 20 is covered with an oil bottom cover 4, the oil bottom cover 4 is locked into a sealing ring 41 in the embodiment, so as to improve the sealing performance of the oil bottom cover 4 and prevent the engine oil from accidentally seeping out from the gap between the opening 20 of the engine case 2 and the oil bottom cover 4.

In addition, the oil pump 3 is accommodated in the engine case 2 and connected to the first case oil pipe 21 and the second case oil pipe 22, so that the oil returning to the bottom of the engine case 2 is sucked into the oil path again and sprayed to various parts of the engine. The engine oil filter screen 5 is sleeved on the box oil suction pipe 23 and can filter engine oil impurities, so that foreign matters are prevented from being sucked into an engine oil path again to influence the normal operation of parts. The spring 6 is clamped between the engine oil filter screen 5 and the oil bottom cover 4, and tightly presses and fixes the engine oil filter screen 5.

Through the design, the tubular oil path conduction path formed by the integrated design can effectively reduce the manufacturing and assembly of the other oil suction pipe, and the cost can be reduced and the risk of dropping the oil suction pipe can be avoided without additionally processing a threaded hole or a fastening hole and other implementation modes at the joint of the oil suction pipe and the engine box body.

The above embodiments are merely examples for convenience of description, and the scope of the claims of the present invention should not be limited to the above embodiments but should be defined by the claims of the present application.

Claims

1. An engine lubricating oil path structure, characterized by, including:

the engine box body comprises a first box body oil pipe, a second box body oil pipe and a box body oil suction pipe; and

an oil pump accommodated in the engine box body and connected with the first box body oil pipe and the second box body oil pipe;

the first box oil pipe, the second box oil pipe, the box oil suction pipe and the engine box are of an integrated structure made of the same material, and a tubular oil path conduction path is formed.

2. The engine lubricating oil circuit structure of claim 1, wherein the engine housing has an opening and an oil bottom cover is disposed over the opening.

3. The engine oil circuit structure of claim 1, further comprising an oil filter disposed on the oil suction pipe of the housing.

4. The structure of claim 2 or 3, further comprising a spring interposed between the oil filter and the oil pan for pressing and fixing the oil filter.

5. The engine oil structure of claim 2, wherein the oil pan further comprises a sealing ring.

6. The engine lubricating oil path structure of claim 1, wherein the tank oil suction pipe is conical.

7. The engine lubricating oil path structure of claim 1, wherein the oil suction opening of the tank oil suction pipe is located at the lowest point of the tank oil suction pipe.