GB566959A - Improvements in tappet mechanism for actuating poppet or like valves for internal combustion and other engines - Google Patents

Improvements in tappet mechanism for actuating poppet or like valves for internal combustion and other engines

Info

Publication number
GB566959A
GB566959A GB792443A GB792443A GB566959A GB 566959 A GB566959 A GB 566959A GB 792443 A GB792443 A GB 792443A GB 792443 A GB792443 A GB 792443A GB 566959 A GB566959 A GB 566959A
Authority
GB
United Kingdom
Prior art keywords
cam follower
chamber
oil
valve
parts
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.)
Expired
Application number
GB792443A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB792443A priority Critical patent/GB566959A/en
Publication of GB566959A publication Critical patent/GB566959A/en
Expired 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
    • F01L1/25—Hydraulic tappets between cam and valve stem
    • F01L1/252—Hydraulic tappets between cam and valve stem for side-valve engines

Landscapes

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

Abstract

566,959. Valve gear. HINDLE, T. June 16, 1944, No. 7924/43. [Class 7 (vi)] [Also in Group XXVI] A tappet rod for a poppet valve is divided into two parts f, p and the adjacent ends of the parts are disposed in a chamber g<1> to which oil is supplied under slight pressure past a non- return valve b disposed in a chamber f<2> within the cam follower f. Oil enters the chamber from the passage o through bores o<3> in the tappet guide, and an annular chamber o<2> and passages o<4> in the cam follower. Guides g2 prevent the cam follower from rotating. At low engine speeds, the leakage of oil past the tappet rod allows the cam follower part f to act directly on the upper or plunger part p, but at higher engine speeds an oil buffer develops between the parts and takes up the clearance between the tappet rod and the valve stem. The cam follower f has a larger diameter than the plunger part p to increase the valve lift,
GB792443A 1944-06-16 1944-06-16 Improvements in tappet mechanism for actuating poppet or like valves for internal combustion and other engines Expired GB566959A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB792443A GB566959A (en) 1944-06-16 1944-06-16 Improvements in tappet mechanism for actuating poppet or like valves for internal combustion and other engines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB792443A GB566959A (en) 1944-06-16 1944-06-16 Improvements in tappet mechanism for actuating poppet or like valves for internal combustion and other engines

Publications (1)

Publication Number Publication Date
GB566959A true GB566959A (en) 1945-01-22

Family

ID=9842401

Family Applications (1)

Application Number Title Priority Date Filing Date
GB792443A Expired GB566959A (en) 1944-06-16 1944-06-16 Improvements in tappet mechanism for actuating poppet or like valves for internal combustion and other engines

Country Status (1)

Country Link
GB (1) GB566959A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018053892A1 (en) * 2016-09-22 2018-03-29 西华大学 Variable valve tappet

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018053892A1 (en) * 2016-09-22 2018-03-29 西华大学 Variable valve tappet
GB2568621A (en) * 2016-09-22 2019-05-22 Univ Xihua Variable valve tappet
GB2568621B (en) * 2016-09-22 2019-10-09 Univ Xihua Variable valve tappet

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