CN203223262U

CN203223262U - Novel valve tappet for engine

Info

Publication number: CN203223262U
Application number: CN 201320108814
Authority: CN
Inventors: 唐永东; 张勃
Original assignee: YIZHENG HUACHENG INTERNAL COMBUSTION ENGINE FITTINGS FACTORY
Current assignee: YIZHENG HUACHENG INTERNAL COMBUSTION ENGINE FITTINGS FACTORY
Priority date: 2013-03-11
Filing date: 2013-03-11
Publication date: 2013-10-02
Anticipated expiration: 2023-03-11

Abstract

The utility model relates to a novel valve tappet for an engine. The novel valve tappet comprises a tappet body base, an inner tappet cavity, an oil return pipe outlet groove and an oil return pipe, wherein the valve tappet is straight; the oil return pipe outlet groove is formed in the outer surface of the end part of the tappet body base; the inlet end of the oil return pipe is arranged on the inner wall of the inner tappet cavity, and the outlet end of the oil return pipe is arranged on the oil return pipe outlet groove; and the end face of the tappet body base is a spherical surface. The novel valve tappet is simple in structure; and the end face of the tappet body base is designed into the spherical surface, so that the strength of the end face of the tappet body base is strengthened, the probability of sticking and breakage of the tappet is lowered, and the normal work of the engine is ensured.

Description

The new work engine valve tappet

Technical field

The utility model relates to the new work engine valve tappet, belongs to technical field of engines.

Background technique

Valve tappet is a critical piece in the valve transmission group, and tappet is the driven member of cam, and its effect is that motion and active force from cam are passed to push rod or valve, also bears lateral force that cam applies simultaneously and it is passed to body or cylinder head.

Tappet is in when work, and its bottom surface contact with cam, because area of contact is little, contact pressure is big, so it is serious relatively to wear and tear, and of long duration then stuck phenomenon of rupture can take place, thereby has influenced the motor proper functioning.

The model utility content

At above-mentioned defective, the purpose of this utility model is to provide a kind of simple in structure, tappet body base end face intensity height, reduces the novel valve tappet of the stuck fracture probability of tappet.

The technological scheme that adopts of the utility model is for this reason: comprise that tappet body base, tappet inner chamber, return tube go out port recess and return tube, described valve tappet is straight tubular, described tappet body base end outer surface is provided with return tube and goes out port recess, the entrance point of described return tube is located on the inwall of tappet inner chamber, the outlet end of return tube is located at return tube and goes out on the port recess, and the end face of described tappet body base is sphere.

The spherical radius of described tappet body base is SR1500mm～SR49000mm.

The utility model has the advantages that: the utility model is simple in structure, by tappet body base end face is made as sphere, thereby has improved tappet body base end face intensity, has reduced the probability of the stuck fracture of tappet, has guaranteed the motor proper functioning.

Description of drawings

Fig. 1 is structural representation of the present utility model.

1 is tappet body base, the 2nd among the figure, and tappet inner chamber, the 3rd, return tube go out port recess, the 4th, return tube, the 5th, sphere.

Embodiment

The new work engine valve tappet, comprise that tappet body base 1, tappet inner chamber 2, return tube go out port recess 3 and return tube 4, described valve tappet is straight tubular, described tappet body base 1 end outer surface is provided with return tube and goes out port recess 3, the entrance point of described return tube 4 is located on the inwall of tappet inner chamber 2, the outlet end of return tube 4 is located at return tube and goes out on the port recess 3, and the end face of described tappet body base 1 is sphere 5; Sphere 5 radiuses of described tappet body base 1 are SR1500mm～SR49000mm.

Claims

1. new work engine valve tappet, it is characterized in that, comprise that tappet body base, tappet inner chamber, return tube go out port recess and return tube, described valve tappet is straight tubular, described tappet body base end outer surface is provided with return tube and goes out port recess, the entrance point of described return tube is located on the inwall of tappet inner chamber, and the outlet end of return tube is located at return tube and goes out on the port recess, and the end face of described tappet body base is sphere.

2. new work engine valve tappet according to claim 1 is characterized in that, the spherical radius of described tappet body base is SR1500mm～SR49000mm.