CN103758655A

CN103758655A - Engine cylinder cover of built-in oil-gas separation devices

Info

Publication number: CN103758655A
Application number: CN201410039081.6A
Authority: CN
Inventors: 刘友良; 王胜永; 崔景国; 范遵奎; 刘涛
Original assignee: Shandong Huasheng Zhongtian Engineering Machinery Co ltd
Current assignee: Shandong Huasheng Zhongtian Engineering Machinery Co ltd
Priority date: 2014-01-27
Filing date: 2014-01-27
Publication date: 2014-04-30
Anticipated expiration: 2034-01-27
Also published as: CN103758655B

Abstract

The invention discloses an engine cylinder cover of built-in oil-gas separation devices and belongs to a component used in the technical field of engines. The engine cylinder cover mainly comprises a cylinder cover body. An oil-gas separation chamber is arranged in the cylinder cover body. A gas inlet pipe and a gas outlet pipe are arranged on the upper portion of the oil-gas separation chamber. An oil return pipe is arranged at the bottom of the oil-gas separation chamber. The oil-gas separation chamber and the cylinder cover body are provided with a second labyrinth structure and a first labyrinth structure respectively, and the second labyrinth structure and the first labyrinth structure are matched with each other. The first oil-gas separation device is arranged in the first labyrinth structure, and the second oil-gas separation device is arranged in the second labyrinth structure. The gas outlet pipe is connected with a communicated structure on the cylinder cover body. The engine cylinder cover is simple in structure, convenient to use and mainly applied to an engine; by arranging the oil-gas separation devices in the engine, engine oil is effectively prevented from leaking to the outside of the engine on the premise that the size of the engine is not increased.

Description

The engine cylinder cover of built-in gas and oil separating plant

Technical field

The invention belongs to a kind of parts in technical field of engines, specifically, relate in particular to a kind of engine cylinder cover of built-in gas and oil separating plant.

Background technique

Engine fuel in the course of the work, due to the operation up and down of piston and the existence of piston ring gap, cause the pressure leakages of firing chamber to engine interior, cause motor internal pressure to change at any time, therefore engine interior need to have the connectivity structure of connecting with ambient atmosphere, and the pressure of balanced engine inside changes.Due to engine interior, there is in addition the machine oil of lubricated use, machine oil can be along with the variation of engine interior pressure, and the connectivity structure of connecting by engine interior and atmosphere is leaked to external engine, causes the disappearance of machine oil, cause engine failure, and cause environmental pollution.

Traditional motor, connectivity structure is placed on middle part or the top of motor, labyrinth structure or gas and oil separating plant are set in connectivity structure, at machine oil, along with changing, motor internal pressure enters after connectivity structure, by labyrinth structure or gas and oil separating plant, the mobile of machine oil hindered, make machine oil under the effect of gravity, be back to engine interior.Because engine interior pressure changes greatly, labyrinth structure or gas and oil separating plant cannot will filter out along with pressure changes mobile machine oil in motor completely, and part machine oil still can be along with air-flow is leaked to external engine.

Summary of the invention

For the connectivity structure that solves conventional engines in prior art cannot will filter out along with pressure changes mobile machine oil in motor completely, cause part machine oil still can be leaked to along with air-flow the defect of external engine, the invention provides a kind of engine cylinder cover of built-in gas and oil separating plant.

The present invention is achieved by the following technical solutions:

A kind of engine cylinder cover of built-in gas and oil separating plant, comprise cylinder cap body, in cylinder cap body, be provided with Oil-gas Separation chamber, top, Oil-gas Separation chamber is provided with suction tude and steam outlet pipe, bottom, Oil-gas Separation chamber is provided with return tube, on Oil-gas Separation chamber and cylinder cap body, be respectively equipped with the labyrinth structure second and the labyrinth structure first that cooperatively interact, in labyrinth structure first, be provided with gas and oil separating plant first, in labyrinth structure second, be provided with gas and oil separating plant second.

Through gas and oil separating plant first, filter for the first time, gas and oil separating plant second and the labyrinth structure second cooperatively interacting and labyrinth structure first, filter for the second time, oil droplet in high-pressure oil gas is separated and is passed through engine interior pressure to change the negative pressure producing, at the indoor generation suction of Oil-gas Separation, part oil gas in Oil-gas Separation chamber is sucked in the sump of motor, when having avoided oil leakage, do not affect the degassing function of connectivity structure.

Steam outlet pipe is connected with the connectivity structure on cylinder cap body.

The outlet side of suction tude is below gas and oil separating plant second.

The outlet side of suction tude is arranged on the below of gas and oil separating plant second, more convenient part oil gas in Oil-gas Separation chamber is drawn in the sump of motor, has avoided the leakage of machine oil.

Compared with prior art, the invention has the beneficial effects as follows:

The present invention is simple in structure, easy to use, and Oil-gas Separation chamber is arranged on to engine interior, is not increasing on the basis of motor volume, effectively avoids oil leakage to arrive external engine.

Accompanying drawing explanation

Fig. 1 is structural representation of the present invention;

Fig. 2 is that the A-A of Fig. 1 is to sectional view;

Fig. 3 is that the B-B of Fig. 1 is to sectional view;

Fig. 4 is the structural representation of Oil-gas Separation chamber;

Fig. 5 is that the C-C of Fig. 4 is to sectional view;

Fig. 6 is the structural representation of cylinder cap body;

Fig. 7 is the plan view of gas and oil separating plant;

Fig. 8 is the plan view of gas and oil separating plant.

Cylinder cap body in the drawings, 1; 2, Oil-gas Separation chamber; 3, return tube; 4, gas and oil separating plant first; 5, labyrinth structure first; 6, suction tude; 7, steam outlet pipe; 8, connectivity structure; 9, gas and oil separating plant second; 10, labyrinth structure second.

Embodiment

Below in conjunction with accompanying drawing, the invention will be further described:

An engine cylinder cover for built-in gas and oil separating plant, comprises cylinder cap body 1, is provided with Oil-gas Separation chamber 2 in

cylinder cap body

1, and 2 tops, Oil-gas Separation chamber are provided with suction tude 6 and steam outlet pipe 7, and steam outlet pipe 7 is connected with the connectivity structure 8 on cylinder cap body 1; 2 bottoms, Oil-gas Separation chamber are provided with return tube 3, on Oil-gas Separation chamber 2 and cylinder cap body 1, be respectively equipped with the labyrinth structure second 10 and the labyrinth structure first 5 that cooperatively interact, in labyrinth structure first 5, be provided with gas and oil separating plant first 4, in labyrinth structure second 10, be provided with gas and oil separating plant second 9; The outlet side of suction tude 6 is below gas and oil separating plant second 9.

Gas and oil separating plant comprises gas and oil separating plant first 4 and gas and oil separating plant second 9, and gas and oil separating plant adopts the gas-liquid filteration net folding of 40-100 to form.

The present invention in use, is used in conjunction with motor, and return tube 3 communicates with the engine oil chamber of motor, and Oil-gas Separation chamber 2 is bolted on cylinder cap body 1.During work, the high-pressure oil gas that engine interior produces is after the gas and oil separating plant first 4 in labyrinth structure first 5 is filtered, by suction tude 6, enter in Oil-gas Separation chamber 2, after the filtration of gas and oil separating plant second 9, oil droplet in high-pressure oil gas is separated, by engine interior pressure, change the negative pressure producing simultaneously, the interior generation suction in Oil-gas Separation chamber 2, due to the suction of engine running generation and the acting in conjunction of gravity, part oil gas in Oil-gas Separation chamber 2 is drawn into by return tube 3 in the sump of motor, gas after filtration is by steam outlet pipe 7, the rear discharge of connectivity structure 8.

Claims

1. the engine cylinder cover of a built-in gas and oil separating plant, comprise cylinder cap body (1), it is characterized in that: in cylinder cap body (1), be provided with Oil-gas Separation chamber (2), top, Oil-gas Separation chamber (2) is provided with suction tude (6) and steam outlet pipe (7), bottom, Oil-gas Separation chamber (2) is provided with return tube (3), on Oil-gas Separation chamber (2) and cylinder cap body (1), be respectively equipped with the labyrinth structure second (10) and the labyrinth structure first (5) that cooperatively interact, in labyrinth structure first (5), be provided with gas and oil separating plant first (4), in labyrinth structure second (10), be provided with gas and oil separating plant second (9).

2. the engine cylinder cover of built-in gas and oil separating plant according to claim 1, is characterized in that: steam outlet pipe (7) is connected with the connectivity structure (8) on cylinder cap body (1).

3. the engine cylinder cover of built-in gas and oil separating plant according to claim 1 and 2, is characterized in that: the outlet side of suction tude (6) is in the below of gas and oil separating plant second (9).