JPH0475111U

JPH0475111U -

Info

Publication number: JPH0475111U
Application number: JP11921490U
Authority: JP
Priority date: 1990-11-13
Filing date: 1990-11-13
Publication date: 1992-06-30

Description

[Brief explanation of the drawing]

第１図は本考案を具体化した油圧式ラツシユア
ジヤスタの実施例を示す断面図、第２図は第１図
のＡ部を拡大して示す断面図、第３図は第１図の
Ｂ部を拡大して示す断面図、第４図は第１図のＣ
部を拡大して示す断面図、第５図は第１図のＤ部
を拡大して示す断面図、第６図は従来の油圧式ラ
ツシユアジヤスタを示す断面図である。１……油圧式ラツシユアジヤスタ、２……ボデ
イ、３……ボデイ外周給油溝、５……ボデイ給油
孔、６……突起、８……プランジヤ、８ａ……上
プランジヤ、８ｂ……下プランジヤ、９……油貯
留室、９ａ……外室、９ｂ……内室、１１……プ
ランジヤ外周給油溝、１２……プランジヤ給油孔
、２１……仕切部材、２２……シール材、２３…
…多孔性フイルタ、α……間隙、β……間隙。 Fig. 1 is a sectional view showing an embodiment of a hydraulic lash adjuster embodying the present invention, Fig. 2 is an enlarged sectional view of section A in Fig. A sectional view showing part B enlarged, Figure 4 is C in Figure 1.
FIG. 5 is an enlarged cross-sectional view of portion D in FIG. 1, and FIG. 6 is a cross-sectional view showing a conventional hydraulic lash adjuster. 1...Hydraulic latch adjuster, 2...Body, 3...Body outer lubrication groove, 5...Body oil supply hole, 6...Protrusion, 8...Plunger, 8a...Upper plunger, 8b...Lower Plunger, 9...Oil storage chamber, 9a...Outer chamber, 9b...Inner chamber, 11...Plunger outer periphery oil supply groove, 12...Plunger oil supply hole, 21...Partition member, 22...Seal material, 23...
...porous filter, α... gap, β... gap.

Claims

[Claims for Utility Model Registration] 1. A cylindrical body 2 with a bottom, a hollow plunger 8 slidably inserted into the inner peripheral surface of the body,
The oil storage chamber 9 in the plunger is divided into an outer chamber 9a and an inner chamber 9.
In the hydraulic latch adjuster, the plunger 8 includes an inverted bottomed cylindrical upper plunger 8a and a bottomed cylindrical lower plunger 8b that are butted against each other. The hydraulic lash adjuster is characterized in that the lower end of the outer peripheral surface of the partition member 21 is fitted onto the inner peripheral surface of the lower plunger 8b via a sealing material 22. 2. A cylindrical body 2 with a bottom, a hollow plunger 8 slidably inserted into the inner peripheral surface of the body,
The oil storage chamber 9 in the plunger is divided into an outer chamber 9a and an inner chamber 9.
In the hydraulic lash adjuster, the oil supply groove 3 is recessed in the outer peripheral surface of the body 2, and the oil supply groove 3 is provided in the peripheral wall of the body 2. An open oil supply hole 5 is provided through the oil supply groove 3 immediately below the oil supply hole 5, and when the hydraulic lash adjuster is inserted into the support hole 42 of the cylinder head 41, the oil supply hole 5 opens. Gap α with the inner peripheral surface of 42
A hydraulic lash adjuster characterized in that a protrusion 6 is provided such that a small gap is formed. 3. A cylindrical body 2 with a bottom, a hollow plunger 8 slidably inserted into the inner peripheral surface of the body,
The oil storage chamber 9 in the plunger is divided into an outer chamber 9a and an inner chamber 9.
In the hydraulic lash adjuster equipped with a cylindrical partition member 21 that partitions the plunger 8 into two parts, an oil supply hole 12 is provided through the peripheral wall of the plunger 8, and an inner periphery of the plunger 8 above the oil supply hole 12 is provided. A hydraulic lash adjuster characterized in that a gap β between at least a portion of the surface and at least a portion of the outer circumferential surface of the partition member 21 is regulated to be a minute gap. 4. A cylindrical body 2 with a bottom, a hollow plunger 8 slidably inserted into the inner peripheral surface of the body,
The oil storage chamber 9 in the plunger is divided into an outer chamber 9a and an inner chamber 9.
1. A hydraulic lash adjuster comprising: a cylindrical partition member 21 that partitions the partition member 21 into two parts;