JPS603205U - hydraulic lifter - Google Patents

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

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案に従う油圧リフタを装着した内燃エンジ
ンの動弁機構を示す部分断面図、第２図は第１図の油圧
リフタの拡大断面図、第３図は第２図の■−■線断面図
、第４図は第３図のＩＶ−ＩＶ線断面図、第５図は本考
案の変形例を示す第４図と同様な図、第６図は第５図の
ＴＶ−ＩＶ線断面図、第７図は本考案の他の変形例を示
す第４図と同様な図、第８図は第７図の■−■線断面図
、第９図は本考案の更に他の変形例を示す第４図と同様
な図、及び第１０図は第９図のｘ−Ｘ線断面図である。 １０・・・・・・油圧リフタ、２２．２３・・・・・・
ボディ、３０・・・・・・リザーバ室、３３・・・・・
・プランジャ、３４・・・・・・リーククリアランス、
３７・・・・・・圧力室、４２・・・・・・チェック弁
、４３．５０．６０・・・・・・エア排出パイプ、７０
・・・・・・エア排出溝。 第７−図 第８図　　　　　　　　第９図Fig. 1 is a partial sectional view showing the valve mechanism of an internal combustion engine equipped with a hydraulic lifter according to the present invention, Fig. 2 is an enlarged sectional view of the hydraulic lifter shown in Fig. 1, and Fig. 3 is a partial sectional view of the hydraulic lifter shown in Fig. 2. 4 is a sectional view taken along the line IV-IV of FIG. 3, FIG. 5 is a view similar to FIG. 4 showing a modification of the present invention, and FIG. 6 is a sectional view taken along the line TV-IV of FIG. 5. A sectional view, FIG. 7 is a view similar to FIG. 4 showing another modification of the present invention, FIG. 8 is a sectional view taken along the line ■-■ of FIG. 7, and FIG. 9 is a still another modification of the present invention. A diagram similar to FIG. 4 showing an example, and FIG. 10 are cross-sectional views taken along the line XX of FIG. 9. 10...Hydraulic lifter, 22.23...
Body, 30... Reservoir chamber, 33...
・Plunger, 34...Leak clearance,
37...Pressure chamber, 42...Check valve, 43.50.60...Air discharge pipe, 70
...Air exhaust groove. Figure 7-Figure 8 Figure 9

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 内燃エンジンの動弁系に装着される油圧リフタにおいて
、ボディの一端側に摺動自在に配設されその内部に圧力
室を形成し且つボディ内壁とともに前記圧力室内の作動
油のリーククリアランスを形成するプランジャ、前記ホ
デイ内に形成されるリザーバ室、該リザーバ室から前記
圧力室へのみ前記リザーバ室に伝達される作動油の流通
を許容するチェック弁、及び前記リザーバ室を含み前記
チェック弁へ至る作動油路中に一端があり、他端がポテ
イ外部へ開口して前記作動油路を外部へ連通させる実質
的に環状なエア排出路を有する油圧リフタ。In a hydraulic lifter installed in a valve train of an internal combustion engine, the hydraulic lifter is slidably disposed on one end of a body, forms a pressure chamber therein, and forms a leak clearance for hydraulic oil in the pressure chamber together with the inner wall of the body. a plunger, a reservoir chamber formed in the body, a check valve that allows flow of hydraulic oil to be transmitted only from the reservoir chamber to the pressure chamber, and an operation that includes the reservoir chamber and reaches the check valve. A hydraulic lifter having a substantially annular air discharge passage having one end in the oil passage and the other end opening to the outside of the potty to communicate the hydraulic oil passage to the outside.