GB394777A - Improvements in or relating to valve gear for internal combustion engines - Google Patents

Improvements in or relating to valve gear for internal combustion engines

Info

Publication number
GB394777A
GB394777A GB963332A GB963332A GB394777A GB 394777 A GB394777 A GB 394777A GB 963332 A GB963332 A GB 963332A GB 963332 A GB963332 A GB 963332A GB 394777 A GB394777 A GB 394777A
Authority
GB
United Kingdom
Prior art keywords
plunger
valve
recess
valve gear
cam
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
GB963332A
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 GB963332A priority Critical patent/GB394777A/en
Publication of GB394777A publication Critical patent/GB394777A/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
    • F01L1/255—Hydraulic tappets between cam and rocker arm
    • 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
    • F01L1/2411—Adjusting or compensating clearance automatically, e.g. mechanically by fluid means, e.g. hydraulically by means of a hydraulic adjusting device located between the valve stem and rocker arm
    • 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
    • F01L1/2422—Adjusting or compensating clearance automatically, e.g. mechanically by fluid means, e.g. hydraulically by means or a hydraulic adjusting device located between the push rod and rocker arm
    • 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

Abstract

394,777. Valve gear. HALFORD, F. B., 9, Golden Square, London. April 4, 1932, No. 9633. [Class 7 (vi).] In valve gear in which the operating thrust is transmitted through a column or pad of liquid confined in a recess in the rocker arm to which further liquid may be admitted past a non- return valve to take up clearance, the non- return valve is free to open and close under the action of gravity and its own inertia, the use of a spring being dispensed with. The Figure shows a cam-actuated rocker 12 in which the cam engages a plunger 16 sliding in a recess in the rocker, to which oil is delivered through passages 24, 25, 26 and past a non-return valve 21, which during the opening movement of the valve gear becomes seated owing to its inertia, on a shoulder 20. The lift of the valve is restricted to a very small amount by a stop 22. The inward movement of the plunger 16 is limited by a shoulder 27, the height of which may be adjusted by placing shims thereon. The outward movement is restricted by a pin 30 engaging a recess in the plunger, and rotation of the plunger is prevented by a flat 28. Air trapped in the recess escapes through a flat formed along one side of the plunger. The poppet valve 21 may be replaced by a ball valve seating with line contact. In a modification, the ball valve seats upon a cup member secured in the hollow plunger, the oil passing between the cup member and plunger, and through a hole at the bottom of the plunger, on to the cam.
GB963332A 1932-04-04 1932-04-04 Improvements in or relating to valve gear for internal combustion engines Expired GB394777A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB963332A GB394777A (en) 1932-04-04 1932-04-04 Improvements in or relating to valve gear for internal combustion engines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB963332A GB394777A (en) 1932-04-04 1932-04-04 Improvements in or relating to valve gear for internal combustion engines

Publications (1)

Publication Number Publication Date
GB394777A true GB394777A (en) 1933-07-06

Family

ID=9875749

Family Applications (1)

Application Number Title Priority Date Filing Date
GB963332A Expired GB394777A (en) 1932-04-04 1932-04-04 Improvements in or relating to valve gear for internal combustion engines

Country Status (1)

Country Link
GB (1) GB394777A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4497307A (en) * 1984-02-03 1985-02-05 General Motors Corporation Integral rocker arm hydraulic lifter and bearing assembly
US4523551A (en) * 1983-05-11 1985-06-18 Aisin Seiki Kabushiki Kaisha Valve actuating device
CN107021439A (en) * 2017-04-25 2017-08-08 金诚信 A kind of multifunctional hydraulic lift

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4523551A (en) * 1983-05-11 1985-06-18 Aisin Seiki Kabushiki Kaisha Valve actuating device
US4497307A (en) * 1984-02-03 1985-02-05 General Motors Corporation Integral rocker arm hydraulic lifter and bearing assembly
DE3503313A1 (en) * 1984-02-03 1985-08-14 Gen Motors Corp ROCKER ARM ARRANGEMENT
CN107021439A (en) * 2017-04-25 2017-08-08 金诚信 A kind of multifunctional hydraulic lift
CN107021439B (en) * 2017-04-25 2018-04-06 金诚信 A kind of multifunctional hydraulic lift

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