JPS57153911A - Oil tappet - Google Patents

Oil tappet

Info

Publication number
JPS57153911A
JPS57153911A JP3816781A JP3816781A JPS57153911A JP S57153911 A JPS57153911 A JP S57153911A JP 3816781 A JP3816781 A JP 3816781A JP 3816781 A JP3816781 A JP 3816781A JP S57153911 A JPS57153911 A JP S57153911A
Authority
JP
Japan
Prior art keywords
plunger
pressure chamber
tappet body
grooves
air
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP3816781A
Other languages
Japanese (ja)
Inventor
Yoshinari Ueda
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Subaru Corp
Original Assignee
Fuji Jukogyo KK
Fuji Heavy Industries Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fuji Jukogyo KK, Fuji Heavy Industries Ltd filed Critical Fuji Jukogyo KK
Priority to JP3816781A priority Critical patent/JPS57153911A/en
Publication of JPS57153911A publication Critical patent/JPS57153911A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/20—Adjusting or compensating clearance
    • F01L1/22—Adjusting or compensating clearance automatically, e.g. mechanically
    • F01L1/24—Adjusting or compensating clearance automatically, e.g. mechanically by fluid means, e.g. hydraulically
    • F01L1/245—Hydraulic tappets

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)

Abstract

PURPOSE:To prevent troubles such as the seating noise of a valve, by providing a plurality of grooves on the inside circumferential surface of the body of a tappet or on the outside circumferential surface of a plunger inserted in the tappet body, to early exhaust air from a pressure chamber between the tappet body and the plunger. CONSTITUTION:A plunger 16 is inserted in a tappet body 15, which is moved by the rotation of a cam 10. A pressure chamber 17 defined between the tappet body 15 and the plunger 16 at the side of the cam 10 is connected to an oil chamber 19 in the plunger through a check valve 21. Oil in a passage 20 is injected into the chambers 17, 19 through oil holes 23, 24. A plurality of air exhaut grooves 27 are provided on the outside peripheral surface 16a of the plunger 16 so that the grooves extend from the top part of the plunger near the pressure chamber 17 to the part of the plunger having the oil holes 24. When there is air in the pressure chamber 17 and the top 16b of the plunger 16 has passed by the hole 15a of the tappet body 15 after the insertion of the plunger into the tappet body in valve lifting, the pressure chamber 17 is connected to the grooves 27 to exhaust the air.
JP3816781A 1981-03-16 1981-03-16 Oil tappet Pending JPS57153911A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3816781A JPS57153911A (en) 1981-03-16 1981-03-16 Oil tappet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3816781A JPS57153911A (en) 1981-03-16 1981-03-16 Oil tappet

Publications (1)

Publication Number Publication Date
JPS57153911A true JPS57153911A (en) 1982-09-22

Family

ID=12517836

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3816781A Pending JPS57153911A (en) 1981-03-16 1981-03-16 Oil tappet

Country Status (1)

Country Link
JP (1) JPS57153911A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5984206U (en) * 1982-11-26 1984-06-07 富士バルブ株式会社 Hydraulic valve gap adjustment device for internal combustion engines
JPH0561403U (en) * 1992-01-28 1993-08-13 日本精工株式会社 Internal combustion engine lash adjuster

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5984206U (en) * 1982-11-26 1984-06-07 富士バルブ株式会社 Hydraulic valve gap adjustment device for internal combustion engines
JPH0561403U (en) * 1992-01-28 1993-08-13 日本精工株式会社 Internal combustion engine lash adjuster

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