GB170691A - Improvements in overhead valves and valve gears for internal combustion engines - Google Patents

Improvements in overhead valves and valve gears for internal combustion engines

Info

Publication number
GB170691A
GB170691A GB2306820A GB2306820A GB170691A GB 170691 A GB170691 A GB 170691A GB 2306820 A GB2306820 A GB 2306820A GB 2306820 A GB2306820 A GB 2306820A GB 170691 A GB170691 A GB 170691A
Authority
GB
United Kingdom
Prior art keywords
valve
inlet
valves
exhaust
valve stem
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
GB2306820A
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.)
MANFREDO GIANNOTTI
VINCENZO BRUNELLI
Original Assignee
MANFREDO GIANNOTTI
VINCENZO BRUNELLI
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 MANFREDO GIANNOTTI, VINCENZO BRUNELLI filed Critical MANFREDO GIANNOTTI
Priority to GB2306820A priority Critical patent/GB170691A/en
Publication of GB170691A publication Critical patent/GB170691A/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
    • F01L1/28—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of coaxial valves; characterised by the provision of valves co-operating with both intake and exhaust ports
    • F01L1/285—Coaxial intake and exhaust valves
    • 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
    • F01L1/12—Transmitting gear between valve drive and valve
    • F01L1/14—Tappets; Push rods
    • F01L1/146—Push-rods
    • 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
    • F01L1/12—Transmitting gear between valve drive and valve
    • F01L1/18—Rocking arms or levers
    • F01L1/181—Centre pivot rocking arms

Abstract

170,691. Giannotti, M., and Brunelli, V. Aug. 5, 1920. Valves.-A valve 14, Fig. 1, serving for both inlet and exhaust has arranged above it an inlet valve 21 rigidly connected to an annular portion 31 which, when the inlet valve is opened, covers ports 36 so as to shut off the cylinder from the exhaust chamber 18. The valve 21 is seated in a partition 19 dividing an inlet chamber 17 from the exhaust chamber 18, and is connected by radial arms to the portion 31. The valves 14, 21 are fitted with closing-spring 23, 30, the latter being the weaker and bearing against a collar 37 attached to the valve stem 25 by means of bayonet slots, and the former bearing against a disc 40 secured by a cotter 35 to the valve stem 22. Valve-gear.-The valves 14, 21 are operated by rocker levers 24, 26, the latter having a forked end bearing on prismatic projections 43 at the top of the valve stem 25. The rockers are actuated by tappet rods 28, 29 and tappets 45, 46, Fig. 7, engaged by cams 48, 49, the former of which is designed to hold the valve 14 open during the inlet and exhaust strokes. Regulating.-The valve 14 may be positively raised by a trip lever 56 when the compression is to be reduced.
GB2306820A 1920-08-05 1920-08-05 Improvements in overhead valves and valve gears for internal combustion engines Expired GB170691A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2306820A GB170691A (en) 1920-08-05 1920-08-05 Improvements in overhead valves and valve gears for internal combustion engines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2306820A GB170691A (en) 1920-08-05 1920-08-05 Improvements in overhead valves and valve gears for internal combustion engines

Publications (1)

Publication Number Publication Date
GB170691A true GB170691A (en) 1921-11-03

Family

ID=10189590

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2306820A Expired GB170691A (en) 1920-08-05 1920-08-05 Improvements in overhead valves and valve gears for internal combustion engines

Country Status (1)

Country Link
GB (1) GB170691A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5806315A (en) * 1992-11-16 1998-09-15 Mui; Richard Chin Pang Internal combustion engine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5806315A (en) * 1992-11-16 1998-09-15 Mui; Richard Chin Pang Internal combustion engine

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