JPS6143911U

JPS6143911U - Internal combustion engine valve train structure

Info

Publication number: JPS6143911U
Application number: JP12850884U
Authority: JP
Inventors: 康二吉崎
Original assignee: トヨタ自動車株式会社
Priority date: 1984-08-27
Filing date: 1984-08-27
Publication date: 1986-03-22

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図ａ，ｂ，第２図ａ，ｂ，および第３図ａ，ｂは
第１実施例を示し、第１図ａはバルブを開閉駆動する場
合をカム軸の配列とともに示す水平断面図、第１図ａは
バルブを停止させた場合をカム軸の配列とともに示す水
平断面図、第２図ａはバルブを開閉駆動する状態を示す
水平断面図、第２図ｂは第２図ａと同じ状態を示す縦断
面図、第３図ａはバルブ停止させた状態を示す水平断面
図、第３図ｂは第３図ａと同じ状態を示す縦断面図、第
４図ａ，ｂおよび第５図ａ，ｂは第２実施例を示し
、第４図ａはバルブを開閉駆動する状態を示す水平断面
図、第４図ｂは第４図ａと同じ状態を示す縦断面図、第
５図ａはバルブ停止させた状態を示す水平断面図、第５
図ｂは第５図ａと同じ状態を示す縦断面図、第６図ａ，
ｂ，第７図ａ，ｂおよび第８図は第３実施例を示し、
第６・図ａはバルブを開閉駆動する状態を示す水平断面
図、第６図ｂは第６図ａと同じ状態を示す縦断面図、第
７図ａはバルブ停止させた状態を示す水平断面図、第７
図ｂは第７図ａと同じ状態を示す縦断面図、第８図はカ
ムを示す側面図である。１・・・・・・バルブ、２・・・・・・バルブステム、
５・・・・・・カム、６・・・・・・カム軸、７−−−
−−・リフタ、９・・・・・・リフタガイド。Figures 1a and b, Figures 2a and b, and Figures 3a and b show the first embodiment, and Figure 1a is a horizontal sectional view showing the arrangement of the camshafts when the valve is driven to open and close. , Fig. 1a is a horizontal sectional view showing the arrangement of the camshafts when the valve is stopped, Fig. 2a is a horizontal sectional view showing the state in which the valve is opened and closed, and Fig. 2b is the same as Fig. 2a. Fig. 3a is a horizontal sectional view showing the same state as Fig. 3a, Fig. 3b is a longitudinal sectional view showing the same state as Fig. 3a, and Figs. Figures 5a and 5b show the second embodiment, Figure 4a is a horizontal sectional view showing the state in which the valve is opened and closed, Figure 4b is a vertical sectional view showing the same state as Figure 4a, and Figure 5b is a vertical sectional view showing the same state as Figure 4a. Figure a is a horizontal sectional view showing the state where the valve is stopped;
Figure b is a vertical sectional view showing the same state as Figure 5a, Figure 6a,
b, Figures 7a, b and 8 show the third embodiment,
Figure 6.a is a horizontal sectional view showing the state in which the valve is driven to open and close, Figure 6b is a vertical sectional view showing the same state as Figure 6a, and Figure 7a is a horizontal sectional view showing the valve in a stopped state. Figure, 7th
FIG. b is a longitudinal sectional view showing the same state as FIG. 7a, and FIG. 8 is a side view showing the cam. 1... Valve, 2... Valve stem,
5...Cam, 6...Camshaft, 7---
--・Lifter, 9...Lifter guide.

Claims

[Scope of utility model registration request]

A cam that is attached to a camshaft and driven to rotate around the axis of the camshaft, a lift that is driven up and down by this cam, and a lifter that supports the lifter so that it can be raised and lowered, and that is approximately perpendicular to the camshaft. The valve stem has a lid guide that can reciprocate in different directions, and a valve stem that engages with the lifter depending on the position of the lid guide, and a valve that opens and closes the port by being driven by the cam via the lifter. When the valve stem engages with the lifter, the valve is driven to open and close via the lifter, and when the valve stem is released from the lifter, the valve is stopped because the lifter is not moved up and down. A valve train structure for an internal combustion engine characterized by: