JPS59172209U

JPS59172209U - Internal combustion engine valve drive device

Info

Publication number: JPS59172209U
Application number: JP6679383U
Authority: JP
Inventors: 須合　雄孝
Original assignee: 日産自動車株式会社
Priority date: 1983-05-06
Filing date: 1983-05-06
Publication date: 1984-11-17

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図は従来例の断面図、第２図は従来例の吸気弁タイ
ミングダイア々゛ラム、第３図は本案第１実施例の正面
図、第４図は第３図の正面図、第５図は第４図のＤ−Ｄ
線による断面図、第６図は第５図のＥ−Ｅ線による断面
図、第７図は第５図のＦ−Ｆ線による断面図、第８図は
本案装置のクランク角に対する吸気弁のリフト曲線図、
第９図は本案力ム形状の正面図、第１０図は第９図のＧ
−Ｇ線による断面図、第１１図は他の実施例の断面図で
ある。図面に現われた符号の説明、６・・・吸気弁、７・・・
カムシャフト、訃・・第１のロッカアーム、９・・・第
１のカム、１０・・・第１のカムフォロワ、１１・・・
ロッカシャフト、１２・・・第２のカム、１３・・・第
２のロッカアーム、１４・・・凸部、１５・・・凹部、
１７・・・切換えシャフート（スライド機構）、１８・
・・油圧室、１９、　２０．及び２１・・・コイル状の
リターンスプリング。Fig. 1 is a sectional view of a conventional example, Fig. 2 is an intake valve timing diagram of a conventional example, Fig. 3 is a front view of the first embodiment of the present invention, Fig. 4 is a front view of Fig. 3, and Fig. 4 is a front view of Fig. 3. Figure 5 is D-D in Figure 4.
6 is a sectional view taken along the line EE in FIG. 5, FIG. 7 is a sectional view taken along the line FF in FIG. 5, and FIG. 8 is a sectional view taken along the line FF in FIG. lift curve diagram,
Figure 9 is a front view of the proposed force form, and Figure 10 is the G of Figure 9.
11 is a cross-sectional view taken along line -G, and FIG. 11 is a cross-sectional view of another embodiment. Explanation of the symbols appearing in the drawings, 6... Intake valve, 7...
Camshaft, rear...first rocker arm, 9...first cam, 10...first cam follower, 11...
Rocker shaft, 12... Second cam, 13... Second rocker arm, 14... Convex portion, 15... Concave portion,
17...Switching shaft (slide mechanism), 18.
...Hydraulic chamber, 19, 20. and 21... coiled return spring.

Claims

[Claims for Utility Model Registration] The first rocker arm is rotated around the rocker arm by a first cam provided on the camshaft to open and close the valve, and the rocker shaft is rotated by the second cam provided on the camshaft. and a second rocker arm that is rotated around the rocker shaft and moved in the axial direction by a slide mechanism provided on the rocker shaft, and the first rocker arm and the second rocker arm have engaging portions that engage with each other. and the engaging portion. A valve drive device for an internal combustion engine configured to transmit rotational force of a second rocker arm to a first rocker arm.