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Plunger type PCV valve

A plunger type and spool technology, applied in the field of plunger type PCV valves, can solve problems such as abnormal noise and collision with the valve body, and achieve the effects of suppressing vibration, smooth gas flow path, and avoiding collision with the valve core hole

Active Publication Date: 2022-05-27
DONGFENG MOTOR GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention provides a plunger-type PCV valve, which solves the problem that the plunger-type spool of the PCV valve in the prior art will collide with the valve body in the state of air flow disturbance, Technical issues that produce abnormal noise

Method used

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  • Plunger type PCV valve
  • Plunger type PCV valve
  • Plunger type PCV valve

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Embodiment Construction

[0028] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of this application.

[0029] It should be noted that all the directional indications in the embodiments of the present application are only used to explain the relative positional relationship, motion situation, etc. between the components under a certain posture. If the specific posture changes, the directional indication Change accordingly.

[0030] The following disclosure provides many different embodiments or examples for implementing different structures of the pres...

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Abstract

The invention belongs to the technical field of PCV valves, and discloses a plunger type PCV valve which comprises a valve body, a plunger type valve element, a spring and a valve deck. A valve element hole is formed in the valve body, and the plunger type valve element is movably arranged in the valve element hole. The plunger type valve element is sleeved with the spring, the first end of the spring abuts against a sinking table formed in the valve element hole, and the second end of the spring abuts against a valve element base of the plunger type valve element. A plurality of supporting bosses which are used for supporting a valve element base of the plunger type valve element and are arranged at intervals are arranged on the end face of a hole opening of the valve element hole. And the valve cover is arranged on the valve body. According to the plunger type PCV valve, the defect that the plunger type valve element collides with the valve body due to airflow disturbance can be effectively overcome.

Description

technical field [0001] The invention relates to the technical field of PCV valves, in particular to a plunger type PCV valve. Background technique [0002] PCV valve, namely Positive Crankcase Ventilation, a crankcase forced ventilation valve; it consists of a valve body, a valve, a valve cover, and a spring. It is used to introduce the gas in the crankcase into the intake manifold through the PCV valve and enter the combustion chamber for combustion, avoiding the crankshaft. The incompletely burned exhaust gas and oil vapor in the box are discharged into the atmosphere to pollute the environment, and the PCV valve can adjust the pressure in the crankcase to avoid oil seal leakage and deterioration of oil consumption. However, when the piston type PCV valve fluctuates in crankcase pressure and intake manifold pressure due to changes in engine operating conditions, the airflow will disturb the piston type spool. For example, when the negative pressure of the manifold is -50k...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01M13/00F16K47/00
CPCF01M13/0011F16K47/00Y02T10/12
Inventor 欧阳丹施发义丁伟熊迪刘向晖
Owner DONGFENG MOTOR GRP