CN202284488U

CN202284488U - Welding type PCV (Pollution Control Valve)

Info

Publication number: CN202284488U
Application number: CN2011203522128U
Authority: CN
Inventors: 刘先杰; 纪铭; 王豪; 侯慷慨
Original assignee: Mahler Technology Investment (china) Co Ltd
Current assignee: Shanghai Male Filter System Co., Ltd.
Priority date: 2011-09-20
Filing date: 2011-09-20
Publication date: 2012-06-27
Anticipated expiration: 2021-09-20

Abstract

The utility model relates to the technical field of engines, in particular to a PCV (Pollution Control Valve). The welding type PCV comprises a valve cover, a valve core, a spring and a valve seat, wherein a hood is arranged below the valve cover and is used as the valve seat; and the hood is connected with the valve cover in a welding manner. Due to the adoption of the technical scheme, various parts of the welding type PCV are simple and convenient to mount; and the valve seat and an O-shaped ring are omitted, so that sealing property is effectively ensured and the cost is greatly saved.

Description

Solder type PCV valve

Technical field

The utility model relates to technical field of engines, is specifically related to a kind of PCV valve.

Background technique

The PCV valve is one of component important in the crankcase ventilation system of motor, plays an important role to regulating crankcase pressure.The PCV valve imports intake manifold with the gas in the crankcase through the PCV valve, and has a spot of air directly to get into intake manifold by air-strainer through the PCV valve, and the PCV valve has effectively been avoided phenomenons such as the closure place is icing, burning is insufficient, deterioration of emission.Prevent that also gas blowby from getting into atmosphere, prevent that simultaneously machine oil is rotten.

With reference to Fig. 1, Fig. 2, existing P CV valve generally comprises valve gap 1, spool 2, spring 4, valve seat 5, in order to realize the seal between valve gap 1 and the valve seat 5, generally also comprises the O type circle 6 that is located at valve gap 1 and valve seat 5 joints.Assembling between the existing P CV valve each several part is complicated, can not guarantee enough sealings between valve gap 1 and the valve seat 5.

The model utility content

The purpose of the utility model is, a kind of solder type PCV valve is provided, and solves above technical problem.

The technical problem that the utility model solved can adopt following technological scheme to realize:

Solder type PCV valve comprises valve gap, spool, spring, valve seat, it is characterized in that, the below of said valve gap is provided with a case, and said case is as said valve seat, and said case and said valve gap are welded to connect.

The utility model has directly been accomplished valve seat then valve gap directly to be welded on the case on the case, has saved valve seat and O type circle.The utility model has not only effectively guaranteed sealing, has saved very big cost again.

The plastic shell that said case adopts plastics to process.Plastic article plasticity is strong, can make the case and the welding of valve gap bottom that match according to the structure of valve gap bottom.

Beneficial effect: owing to adopt technique scheme, the installation of each parts of the utility model is simple and convenient, has saved valve seat and O type circle, has not only effectively guaranteed sealing, has saved very big cost again.

Description of drawings

Fig. 1 is a kind of structural representation of existing P VC valve;

Fig. 2 is the another kind of structural representation of existing P VC valve;

Fig. 3 is the structural representation of the utility model.

Embodiment

For technological means, creation characteristic that the utility model is realized, reach purpose and be easy to understand with effect and understand, below in conjunction with the further elaboration the utility model of concrete diagram.

With reference to Fig. 3, solder type PCV valve comprises valve gap 1, spool 2, spring 4, valve seat, and the below of valve gap 1 is provided with a case 3, and case 3 is as valve seat, and case 3 is welded to connect with valve gap 1.The utility model has directly been accomplished valve seat then valve gap 1 directly to be welded on the case 3 on the case 3, has saved valve seat and O type circle.The utility model has not only effectively guaranteed sealing, has saved very big cost again.

The plastic shell that case 3 adopts plastics to process.Plastic article plasticity is strong, can make the case 3 and the welding of valve gap 1 bottom that match according to the structure of valve gap 1 bottom.

More than show and described basic principle of the utility model and the advantage of major character and the utility model.The technician of the industry should understand; The utility model is not restricted to the described embodiments; The principle of describing in the foregoing description and the specification that the utility model just is described; Under the prerequisite that does not break away from the utility model spirit and scope, the utility model also has various changes and modifications, and these variations and improvement all fall in the utility model scope that requires protection.The utility model requires protection domain to be defined by appending claims and equivalent thereof.

Claims

1. solder type PCV valve comprises valve gap, spool, spring, valve seat, it is characterized in that, the below of said valve gap is provided with a case, and said case is as said valve seat, and said case and said valve gap are welded to connect.

2. solder type PCV valve according to claim 1 is characterized in that: the plastic shell that said case adopts plastics to process.