CN108999675B

CN108999675B - Oil drain structure of oil mist separator

Info

Publication number: CN108999675B
Application number: CN201810956838.6A
Authority: CN
Inventors: 方立锋; 蔡炳芳; 饶聪超; 周鸯銮
Original assignee: Shentong Technology Group Co Ltd
Current assignee: Shentong Technology Group Co Ltd
Priority date: 2018-08-21
Filing date: 2018-08-21
Publication date: 2024-01-09
Anticipated expiration: 2038-08-21
Also published as: CN108999675A

Abstract

The invention provides an oil drainage structure of an oil mist separator, and relates to an oil mist separator device for an engine. The check valve solves the problems that in the prior art, a check valve is easy to block, and oil discharge and check effects are poor. This oil mist separator's oil drainage structure, including oil drain pipe, oil drain pipe bottom port sets up the check valve, the check valve is including setting up the oil drain hole that the annular keeps off the body formation in oil drain pipe, the oil drain hole below sets up the valve block, the valve block below sets up the locking closure, locking closure pressure equipment is on oil drain pipe bottom port, be provided with the oil discharge hole with external UNICOM on the locking closure, open on the valve block of annular fender body below has the through-hole. The invention can effectively prevent the blockage of oil discharge by utilizing the valve plate structure, and has simple structure, convenient operation and low cost.

Description

Oil drain structure of oil mist separator

Technical Field

The invention belongs to the technical field of automobile parts, relates to an oil mist separator device for an engine, and in particular relates to an oil drainage structure of an oil mist separator.

Background

An engine oil mist separator device separates and removes oil mist from blow-by gases entering a crankcase from a combustion chamber. The oil mist separator separates oil mist and gas by a collision plate or the like, and supplies the gas to an intake system. The separated oil is returned to the interior of the internal combustion engine through an oil drain pipe.

When the internal pressure of the engine is greater than that of the oil mist separator subjected to the negative pressure of the intake air, oil may flow back from the inside of the engine to the inside of the oil mist separator through the drain pipe or be entrained by blow-by gas into the intake system. When the pressure difference between the inside of the oil mist separator and the inside of the engine is small, for example, when the engine is stopped, the check valve is pushed down by the weight of the oil, so that the oil discharge hole is opened. During operation of the internal combustion engine, the non-return valve is sucked by the intake negative pressure, so that the oil discharge hole is closed to prevent backflow of the oil. When the oil is accumulated in the drain pipe, the check valve is also pushed down by the head of the oil, so that the oil is drained, and then the check valve is sucked by the negative pressure again, so that the drain hole is closed.

However, most of the prior check valves have complex structures and are easy to block, so that the oil discharge and check effects are poor.

Disclosure of Invention

The invention aims at solving the problems existing in the prior art and provides an oil draining structure of an oil mist separator.

The aim of the invention can be achieved by the following technical scheme: the utility model provides an oil drain structure of oil mist separator, includes oil drain pipe, oil drain pipe end port sets up the check valve, the check valve is including setting up the oil drain hole that the annular fender body formed in oil drain pipe, the oil drain hole below sets up the valve block, the valve block below sets up the locking closure, locking closure pressure equipment is on oil drain pipe end port, be provided with the oil discharge hole with external UNICOM on the locking closure, open on the valve block of annular fender body below has the through-hole. When the valve plate descends, oil can enter the lock cover through the through hole of the valve plate and then be discharged from the oil discharging hole.

In the oil drainage structure of the oil mist separator, the valve block is made of ferromagnetic materials, the electromagnetic coil is arranged on the lock cover and used for controlling the position of the valve block, so that the valve block is controlled to be opened or closed according to the actual working condition requirement, and the valve block can be alternately attracted and released through the electromagnetic coil, so that the valve block vibrates, oil is conveniently discharged, the oil is prevented from being attached to the valve block, an alternating magnetic field is generated through the electromagnetic coil, vortex current is excited on the valve block, the temperature of the valve block is increased, and smooth flowing of the oil is facilitated. The electromagnetic coil is arranged at the oil unloading hole, and the flow of oil is also facilitated by heat generated during the operation of the electromagnetic coil.

In the oil draining structure of the oil mist separator, the valve plate fulcrum for supporting the valve plate is arranged in the lock cover, so that the valve plate is kept at a certain distance from the oil draining hole.

In the oil drainage structure of the oil mist separator, the valve plate fulcrum is conical, the valve plate is provided with the conical depression corresponding to the conical valve plate vertex, the conical valve plate falls on the conical valve plate vertex when the valve plate descends, the gap through which oil passes is increased, and the flow of the oil is facilitated.

In the oil draining structure of the oil mist separator, guide vanes along the radial direction of the valve plate are respectively arranged on two sides of the contact part of the valve plate and the oil draining hole.

In the oil drainage structure of the oil mist separator, the guide vane is an arc vane with consistent bending direction.

In the oil draining structure of the oil mist separator, the valve plate is a conical valve plate, and the oil draining hole is conical matched with the conical valve plate, so that the valve plate is supported more stably.

In the oil drain structure of the oil mist separator, the valve plate is provided with the movable rod body penetrating through the oil drain hole, the surface of the rod body is provided with the convex edges along the direction of the oil drain hole, and the rod body plays a role in guiding the up-and-down movement of the valve plate, so that the oil drain hole is better sealed, and oil stains on the wall surface of the oil drain hole can be scraped.

In the oil drain structure of the oil mist separator, the oil drain pipe is provided with a vibrator for vibrating the oil drain pipe.

In the oil drainage structure of the oil mist separator, the annular baffle body is an elastic annular air bag, and the air pressure in the annular air bag is controlled by the air pressure control device, so that the size of an annular hole in the middle of the annular air bag is controlled, and the oil drainage speed is actively controlled.

Compared with the prior art, the oil drainage structure of the oil mist separator has the following advantages:

the invention can effectively prevent the blockage of oil discharge by utilizing the valve plate structure, and has simple structure, convenient operation and low cost.

Drawings

FIG. 1 is a schematic structural view of a first embodiment;

FIG. 2 is a schematic diagram of the structure of a second embodiment;

FIG. 3 is a schematic structural view of a valve plate according to the second embodiment

Fig. 4 is a schematic structural view of the third embodiment.

In the figure, an oil drain pipe 1, an annular baffle body 2, an oil drain hole 3, a valve plate 4, a lock cover 5, an oil drain hole 6, a through hole 7, a valve plate fulcrum 8, a guide vane 9, a rod body 10, an electromagnetic coil 11, an annular air bag 12 and a vibrator 13.

Detailed Description

The following are specific embodiments of the present invention, and the technical solutions of the present invention are further described with reference to the accompanying drawings, but the present invention is not limited to these embodiments.

Example 1

As shown in fig. 1, an oil drain structure of an oil mist separator comprises an oil drain pipe 1, wherein a check valve is arranged at the bottom end opening of the oil drain pipe and comprises an oil drain hole 3 formed by an annular baffle body 2 arranged in the oil drain pipe, a valve plate 4 is arranged below the oil drain hole, a lock cover 5 is arranged below the valve plate and is pressed on the bottom end opening of the oil drain pipe, an oil drain hole 6 communicated with the outside is arranged on the lock cover, and a through hole 7 is formed in the valve plate below the annular baffle body. When the valve plate descends, oil can enter the lock cover through the through hole of the valve plate and then be discharged from the oil discharging hole. The lock cover is internally provided with a valve plate fulcrum 8 for supporting the valve plate, so that the valve plate is kept at a certain distance from the oil discharge hole.

Example two

As shown in fig. 2 and 3, the valve block fulcrum is conical, the valve block is provided with a conical depression corresponding to the conical valve block vertex, namely, the valve block is a conical valve block, the conical valve block falls on the conical valve block vertex when descending, the gap through which oil passes is increased, the flow of the oil is facilitated, and the oil drain hole is conical matched with the conical valve block, so that the valve block is supported more stably, and the rotation friction is reduced.

Guide vanes 9 along the radial direction of the valve plate are respectively arranged on the two sides of the contact part of the valve plate and the oil drain hole. The guide vane is an arc vane with consistent bending direction, plays a guiding role on oil flow, and can also enable the valve plate to rotate.

The valve plate is provided with a movable rod body 10 penetrating through the oil drain hole, the surface of the rod body is provided with a convex edge along the direction of the oil drain hole, the rod body plays a role in guiding the up-and-down movement of the valve plate, so that the valve plate can better seal the oil drain hole, the convex edge can also scrape oil stains on the wall surface of the oil drain hole, and the oil can flow down along the convex edge conveniently.

The valve block is ferromagnetic material valve block, for example can be iron sheet or magnet piece, is provided with solenoid 11 on the locking closure for the position of control valve block to open or close according to actual operating mode demand control valve block, also accessible solenoid is to the alternative attraction and the release of valve block, thereby makes the valve block vibrations, thereby is convenient for fluid discharge, prevents that fluid from adhering to on the valve block, produces alternating magnetic field through solenoid, thereby arouses vortex current on the valve block, thereby makes the valve block temperature rise, thereby is convenient for fluid smooth and easy to flow. The electromagnetic coil is arranged at the oil unloading hole, and the flow of oil is also facilitated by heat generated during the operation of the electromagnetic coil.

Example III

As shown in fig. 4, in the oil draining structure of the oil mist separator, the annular baffle is an elastic annular air bag 12, and the air pressure control device controls the air pressure in the annular air bag, so as to control the size of an annular hole in the middle of the annular air bag, and actively control the oil draining speed, and also can utilize the full contact between the rod body and the middle hole to realize the scraping of the oil adhered to the middle hole. And the oil discharge pipe is provided with a vibrator 13 for vibrating the oil discharge pipe.

Although some terms are used more herein, the possibility of using other terms is not excluded. These terms are used merely for convenience in describing and explaining the nature of the invention; they are to be interpreted as any additional limitation that is not inconsistent with the spirit of the present invention.

The specific embodiments described herein are offered by way of example only to illustrate the spirit of the invention. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. The utility model provides an oil drain structure of oil mist separator, includes oil drain pipe, its characterized in that, oil drain pipe end port sets up the check valve, the check valve is including setting up the oil drain hole that the annular fender body in oil drain pipe formed, the oil drain hole below sets up the valve block, the valve block below sets up the locking closure, locking closure pressure equipment is on oil drain pipe end port, be provided with the oil discharge hole with external UNICOM on the locking closure, be provided with the valve block fulcrum of support valve block in the locking closure, the valve block fulcrum is the toper, open on the valve block of annular fender body below has the through-hole, be provided with on the valve block and correspond the toper with the toper valve block summit and cave, be provided with respectively along the radial guide vane of valve block on the both sides of valve block with the oil drain hole contact portion, the guide vane is the arc blade that the bending direction is unanimous, the annular fender body is the annular gasbag that has elasticity, atmospheric pressure in the air pressure controlling device control annular gasbag middle ring hole's size.

2. The oil drain structure of the oil mist separator according to claim 1, wherein the valve plate is a ferromagnetic valve plate, and the electromagnetic coil is provided on the lock cover.

3. The oil drain structure of the oil mist separator according to claim 1, wherein the valve plate is a tapered valve plate, and the oil drain hole is tapered matching the tapered valve plate.

4. The oil drain structure of the oil mist separator according to claim 1, wherein a movable rod body penetrating through the oil drain hole is provided on the valve plate, and a rib along the direction of the oil drain hole is provided on the surface of the rod body.

5. The oil drain structure of the oil mist separator according to claim 1, wherein a vibrator is provided on the oil drain pipe.