JPS6191004U

JPS6191004U -

Info

Publication number: JPS6191004U
Application number: JP17566784U
Authority: JP
Priority date: 1984-11-21
Filing date: 1984-11-21
Publication date: 1986-06-13
Also published as: JPH0223765Y2

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例に係る油圧リフタ内
蔵ロツカアームの断面図、第２図は既に提案した
油圧リフタ内蔵ロツカアームの断面図、である。１……ロツカアーム、３……油圧リフタ、４…
…凹部、６……プランジヤ、７……貯油室、８…
…高圧室、１６……オイル通孔、１９……凹部底
面、２０……エア抜き孔、２１……スペーサ、２
２……エア通孔、２４……エア抜き穴、２５，２
６……開口部。 FIG. 1 is a cross-sectional view of a rocker arm with a built-in hydraulic lifter according to an embodiment of the present invention, and FIG. 2 is a cross-sectional view of a rocker arm with a built-in hydraulic lifter already proposed. 1...Rotsuka arm, 3...Hydraulic lifter, 4...
... recess, 6... plunger, 7... oil storage chamber, 8...
...High pressure chamber, 16...Oil passage hole, 19...Bottom of recess, 20...Air vent hole, 21...Spacer, 2
2...Air vent hole, 24...Air vent hole, 25,2
6...Opening.

Claims

[Scope of utility model registration request]

A bottomed cylindrical body is slidably inserted into the recess formed in the rocker arm, and a bottomed cylindrical plunger with a hole bored in the bottom wall is inserted into the body, and an oil storage chamber is formed between the recess and the plunger. A high pressure chamber is formed between the plunger and the body, and a check valve is provided in the hole of the plunger to allow oil to flow from the oil storage chamber to the high pressure chamber, and the oil is supplied from the rocker shaft through an oil supply passage formed in the rocker arm. In the rocker arm with a built-in hydraulic lifter, which supplies oil to the oil storage chamber and further flows the oil from the oil storage chamber to the high pressure chamber through the hole to perform zero lash, the oil supply passage is directed from the lower part of the rocker shaft to the upper part of the oil storage chamber. Extended,
Furthermore, an air bleed passage is extended from the air bleed hole at the top of the oil storage chamber to the clearance section at the top of the oil storage chamber, and the relative positions are as follows: from the bottom to the bottom of the oil storage shaft, the opening of the oil supply passage to the oil storage chamber, and the upper part of the oil storage chamber. A rock arm with a built-in hydraulic lifter characterized by an air bleed hole and an air vent passage opening to the upper clearance part of the rock shaft.