JPH0424605U

JPH0424605U -

Info

Publication number: JPH0424605U
Application number: JP6537790U
Authority: JP
Priority date: 1990-06-20
Filing date: 1990-06-20
Publication date: 1992-02-27

Description

[Brief explanation of the drawing]

第１図は本考案の実施例を示し第２図のＡ−Ａ
断面図、第２図は同じく平面図、第３図は同じく
第２図のＡ−Ａ断面図、第４図は同じくチエツク
バルブ部分の拡大図、第５図は同じくボデイの側
面を示す断面図、第６図は別例のチエツクバルブ
部分の拡大図、第７図は従来例の断面図、第８図
は同じくチエツクバルブ部分の拡大図である。１……内燃機関の動弁機構、２……シリンダヘ
ツド、３……ガイド孔、４……油圧バルブリフタ
、５……スカート部、６……カム、７……チツプ
部、８……ボデイ、９……側壁部、１０……端壁
部、１１……高圧室、１３……給油溝、１４……
通気部、１５……給油路、１６……オイル、１７
……チエツクバルブ、２０……プランジヤ。 FIG. 1 shows an embodiment of the present invention, and A-A in FIG.
2 is a plan view, FIG. 3 is a sectional view taken along line A-A in FIG. 2, FIG. 4 is an enlarged view of the check valve portion, and FIG. 5 is a sectional view showing the side surface of the body. , FIG. 6 is an enlarged view of the check valve portion of another example, FIG. 7 is a sectional view of the conventional example, and FIG. 8 is an enlarged view of the check valve portion. DESCRIPTION OF SYMBOLS 1... Valve mechanism of an internal combustion engine, 2... Cylinder head, 3... Guide hole, 4... Hydraulic valve lifter, 5... Skirt part, 6... Cam, 7... Chip part, 8... Body, 9... Side wall portion, 10... End wall portion, 11... High pressure chamber, 13... Oil supply groove, 14...
Ventilation section, 15... Oil supply path, 16... Oil, 17
...Check valve, 20...Plunger.

Claims

[Claims for Utility Model Registration] 1. Inside an inverted cup-shaped body 8 consisting of a skirt portion 5 and a tip portion 7, there are a side wall portion 9 and an end wall portion 1.
an inverted cup-shaped plunger 20 consisting of In a valve operating mechanism for an internal combustion engine comprising a cylinder head 2 having a guide hole 3 in which a striking type hydraulic valve lifter 4 is slidably disposed, The oil supply groove 13 is opened in a part of the outer peripheral surface of the body 8, and the oil supply groove 13 is also provided in the upper part of the inner peripheral surface of the guide hole 3 of the cylinder head 2 and is opened in another part of the outer peripheral surface of the body 8. A ventilation part 14 is opened so as not to overlap with the upper end of the skirt part 5 of the body 8 and communicates with the atmosphere.
1, the outer opening of at least one oil supply passage 15 always communicates with the oil supply groove 13, and always or temporarily connects at least one of the other oil supply passages 15. One refueling route 15
The outer opening of the oil supply passage 15 communicates with the ventilation part 14.
A valve operating mechanism for an internal combustion engine, comprising: a check valve 17 that is provided in the middle of each of the oil supply passages 15 or at an opening inside thereof and that prevents oil 16 from leaking from the high pressure chamber 11. 2. The valve operating mechanism for an internal combustion engine according to claim 1, wherein the check valve 17 is provided to open downward. 3. The valve operating mechanism for an internal combustion engine according to claim 1, wherein the ventilation portion 14 is recessed in the upper edge of the inner peripheral surface of the guide hole 3 of the cylinder head 2 so as to release interference from the cam 6.