CN218030328U - PCV valve of engine - Google Patents

Abstract

The utility model discloses an engine PCV valve, including valve body, valve gap, case, spring and retaining ring, the fixed surface of valve gap installs the outlet duct, the inlet port has been seted up to the one end of valve body, the one end terminal surface that the inlet port was kept away from to the valve body has seted up the ring channel, the fixed surface that outlet duct one side was kept away from to the valve gap install with ring channel assorted go-between, the inner wall threaded connection of go-between and ring channel, the valve body is close to the inner wall of ring channel and has seted up with retaining ring assorted spacing groove, the inner wall slidable mounting of retaining ring and spacing groove, the surface of case is equipped with buffer gear. The utility model discloses a bottom fixed mounting rubber pad at the case for the spring is when pushing away the case and reseing, and the case can not directly strike with the inner wall of valve body inlet end, makes the rubber pad can cushion the case, thereby prolongs PCV valve's life, can reduce PCV valve during operation's noise simultaneously.

Description

PCV valve of engine

Technical Field

The utility model relates to an automobile parts technical field especially relates to an engine PCV valve.

Background

PCV is a shorthand for three words Positive Crankcase Ventilation in english, and chinese means a Crankcase (or oil pan) active Ventilation control system. The PCV valve has the main functions of guiding gas in a crankcase into an intake manifold through the PCV valve, and directly introducing a small amount of air into the intake manifold through the PCV valve from an air filter, so that the phenomena of icing, insufficient combustion, poor emission and the like at a throttle valve are avoided, blow-by gas is prevented from entering the atmosphere, and meanwhile, the engine oil is prevented from deteriorating.

The conventional PCV valve is lack of a corresponding buffer structure to buffer between the valve core and the shell, the valve core running at high speed inevitably collides with the shell due to the change of the working condition of an engine, the abrasion between the valve core and the shell is easily caused by long-time collision, and the service life of the PCV valve is shortened.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the shortcoming that exists among the prior art, and the engine PCV valve that proposes.

In order to realize the purpose, the utility model adopts the following technical scheme:

the utility model provides an engine PCV valve, includes valve body, valve gap, case, spring and retaining ring, the external fixed surface of valve gap installs the outlet duct, the inlet port has been seted up to the one end of valve body, the valve body is kept away from the one end terminal surface of inlet port and is seted up the ring channel, the external fixed surface that outlet duct one side was kept away from to the valve gap install with ring channel assorted go-between, the go-between is connected with the inner wall screw thread of ring channel, the valve body is close to the inner wall of ring channel and seted up with retaining ring assorted spacing groove, the inner wall slidable mounting of retaining ring and spacing groove, the surface of case is equipped with buffer gear.

As a further aspect of the present invention, the buffer mechanism includes a rubber pad, the rubber pad is fixedly mounted at the bottom end of the valve core.

As a further scheme of the utility model, the valve gap is close to the fixed surface of go-between and installs the fender ring, the inner wall that keeps off the ring offsets with the surface of valve body.

As a further proposal of the utility model, the valve gap has been close to the surface of go-between one side and has been seted up the annular mounting groove.

As a further proposal of the utility model, the inner wall fixed mounting of annular mounting groove has the rubber circle.

As a further proposal of the utility model, the outer fixed surface of the outlet duct is provided with a spacing ring.

The beneficial effects of the utility model are that:

1. through the annular groove threaded connection who sets up the go-between of valve gap surface fixed mounting and valve body terminal surface, can dismantle and install the PCV valve fast, be convenient for maintain and change the inside part of PCV valve.

2. Through the bottom fixed mounting rubber pad at the case for the spring is when pushing away the case and reseing, and the case can directly not strike with the inner wall of valve body inlet end, makes the rubber pad can cushion the case, thereby extension PCV valve's life can reduce the noise of PCV valve during operation simultaneously.

3. Set up the rubber circle through the inner wall at the valve gap for the rubber circle can extrude the retaining ring, makes the retaining ring can support the end opening of giving vent to anger of tight valve body, avoids gaseous clearance between retaining ring and the valve body to spill over.

Drawings

Fig. 1 is an exploded schematic view of an engine PCV valve according to the present invention;

fig. 2 is a schematic cross-sectional structural view of an engine PCV valve according to the present invention;

fig. 3 is an enlarged view of the structure at a in fig. 2.

In the figure: 1. a valve body; 2. a valve cover; 3. an air outlet pipe; 4. a valve core; 5. a spring; 6. a retainer ring; 7. a rubber ring; 8. a limiting groove; 9. an annular groove; 10. a connecting ring; 11. a baffle ring; 12. an annular mounting groove; 13. a rubber pad; 14. a limit ring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

It should be noted that, in the present application, the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Examples

Referring to fig. 1-3, an engine PCV valve includes a valve body 1, a valve cover 2, a valve core 4, a spring 5 and a retainer ring 6, an outlet pipe 3 is fixedly mounted on the outer surface of the valve cover 2, an inlet hole is formed in one end of the valve body 1, an annular groove 9 is formed in an end face, far away from the inlet hole, of the valve body 1, a connecting ring 10 matched with the annular groove 9 is fixedly mounted on the outer surface, far away from one side of the outlet pipe 3, of the valve cover 2, the connecting ring 10 is in threaded connection with the inner wall of the annular groove 9, a limit groove 8 matched with the retainer ring 6 is formed in the inner wall, close to the annular groove 9, of the valve body 1, the retainer ring 6 is slidably mounted on the inner wall of the limit groove 8, and a buffer mechanism is arranged on the outer surface of the valve core 4.

In this embodiment, the buffering mechanism includes a rubber pad 13, and the rubber pad 13 is fixedly mounted at the bottom end of the valve element 4.

In this embodiment, a baffle ring 11 is fixedly installed on the outer surface of the valve cover 2 close to the connection ring 10, and the inner wall of the baffle ring 11 abuts against the outer surface of the valve body 1.

In this embodiment, an annular mounting groove 12 is formed on the outer surface of the valve cover 2 on the side close to the connection ring 10.

In this embodiment, the inner wall of the annular mounting groove 12 is fixedly provided with the rubber ring 7, and the thickness of the rubber ring 7 is slightly larger than the depth of the annular mounting groove 12.

In this embodiment, a limiting ring 14 is fixedly mounted on the outer surface of the outlet pipe 3.

From the above description, it can be seen that the above-mentioned embodiments of the present invention achieve the following technical effects: the connecting ring 10 fixedly installed on the outer surface of the valve cover 2 is in threaded connection with the annular groove 9 formed in the end face of the valve body 1, so that the PCV valve can be quickly disassembled and installed, and parts inside the PCV valve can be conveniently maintained and replaced; by fixedly installing the rubber pad 13 at the bottom of the valve core 4, when the spring 5 pushes the valve core 4 to reset, the valve core 4 cannot directly impact the inner wall of the air inlet end of the valve body 1, and the rubber pad 13 can buffer the valve core 4, so that the service life of the PCV valve is prolonged, and meanwhile, the noise generated during the operation of the PCV valve can be reduced; set up rubber circle 7 through the inner wall at valve gap 2 for rubber circle 7 can extrude retaining ring 6, makes retaining ring 6 can support tight valve body 1's the end opening of giving vent to anger, avoids gaseous clearance between retaining ring 6 and the valve body 1 to spill over.

For ease of description, spatially relative terms such as "over … …", "over … …", "over … …", "over", etc. may be used herein to describe the spatial positional relationship of one device or feature to another device or feature as shown in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. As used herein, the singular forms "a", "an", and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the accompanying drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Moreover, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (6)

1. The utility model provides an engine PCV valve, includes valve body (1), valve gap (2), case (4), spring (5) and retaining ring (6), the fixed surface of valve gap (2) installs outlet duct (3), the inlet port has been seted up to the one end of valve body (1), its characterized in that, annular groove (9) have been seted up to the one end terminal surface that the inlet port was kept away from in valve body (1), the fixed surface of outlet duct (3) one side was kept away from in valve gap (2) installs and ring channel (9) assorted go-between (10), the inner wall threaded connection of go-between (10) and annular groove (9), the inner wall that valve body (1) is close to annular groove (9) is seted up with retaining ring (6) assorted spacing groove (8), the inner wall slidable mounting of retaining ring (6) and spacing groove (8), the surface of case (4) is equipped with buffer gear.

2. The engine PCV valve according to claim 1, wherein the damping mechanism comprises a rubber pad (13), and the rubber pad (13) is fixedly mounted to the bottom end of the valve element (4).

3. The engine PCV valve according to claim 1, wherein the valve cover (2) is fixedly provided with a baffle ring (11) close to the outer surface of the connecting ring (10), and the inner wall of the baffle ring (11) is abutted against the outer surface of the valve body (1).

4. The engine PCV valve according to claim 1, wherein the outer surface of the valve cover (2) on the side close to the connection ring (10) is provided with an annular mounting groove (12).

5. The engine PCV valve according to claim 4, wherein the inner wall of the annular mounting groove (12) is fixedly mounted with a rubber ring (7).

6. The engine PCV valve according to claim 1, wherein a stop collar (14) is fixedly mounted to an outer surface of the outlet pipe (3).

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