GB734268A - Improved valve gear for internal combustion engines with valves arranged in the cylinder head - Google Patents

Improved valve gear for internal combustion engines with valves arranged in the cylinder head

Info

Publication number
GB734268A
GB734268A GB26119/51A GB2611951A GB734268A GB 734268 A GB734268 A GB 734268A GB 26119/51 A GB26119/51 A GB 26119/51A GB 2611951 A GB2611951 A GB 2611951A GB 734268 A GB734268 A GB 734268A
Authority
GB
United Kingdom
Prior art keywords
cylinder
engine
cylinder head
crankcase
tappet
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
GB26119/51A
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.)
Lanova A-G
Original Assignee
Lanova A-G
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 Lanova A-G filed Critical Lanova A-G
Publication of GB734268A publication Critical patent/GB734268A/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
    • F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
    • F01B7/00—Machines or engines with two or more pistons reciprocating within same cylinder or within essentially coaxial cylinders
    • F01B7/02—Machines or engines with two or more pistons reciprocating within same cylinder or within essentially coaxial cylinders with oppositely reciprocating pistons
    • F01B7/04—Machines or engines with two or more pistons reciprocating within same cylinder or within essentially coaxial cylinders with oppositely reciprocating pistons acting on same main shaft
    • F01B7/12—Machines or engines with two or more pistons reciprocating within same cylinder or within essentially coaxial cylinders with oppositely reciprocating pistons acting on same main shaft using rockers and connecting-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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)

Abstract

734,268. Valve gear; engine construction; charging and cooling cylinders; fuel injection pumps. LANOVA AKT.-GES. Nov. 7, 1951 [June 27, 1951], No. 26119/51. Classes 7(2), 7(3) and 7(6). The crankcase 21 of an overhead valve engine is extended to provide a part 12 immediately adjacent the side of the cylinder head 7, in which part is arranged the camshaft 14 and tappet 13 whilst the remainder of the valve gear 5 is carried by the cylinder head and engages the tappet along a thrust face parallel to the cylinder axis so that expansion of the cylinder block has no affect on the valve gear clearance. In the horizontal cylinder engine shown, having the crankcase 21 arranged below the cylinder block and the pistons 24 connected to the cranks 20 through levers 27 and connecting rods 28, each valve 4 is actuated from the tappet 13 through a rocker 5 the arm 9 of which carries a clearance adjusting screw 11 arranged at right angles to the cylinder axis and contacting the end face of the tappet 13 which is parallel to the cylinder axis so that on expansion of the cylinder block relatively the crankcase 21 the screw 11 is merely moved across the end face of the tappet. The screw 11 projects through a sleeve 16 screwed into the cylinder head and clamping a sealing ring 15 against the crankcase. In a fuel injection engine the injection pump 31 is mounted on the part 12 of the crankcase for actuation from the camshaft 14. In a two stroke engine the valves in the cylinder head are exhaust valves, the inlet ports being piston controlled, and the scavenging pump comprises a circular fan arranged at the end of the crankshaft opposite to the flywheel which, in an air-cooled engine, may form the cooling-fan. The invention is also shown applied to a vertical cylinder engine and in a modification having valves arranged in the cylinder head with their axes perpendicular to the cylinder axis, the rockers 5 are omitted and the tappets contact the ends of the valve stems directly, clearance adjusting screws being provided on the ends of the tappets.
GB26119/51A 1951-06-27 1951-11-07 Improved valve gear for internal combustion engines with valves arranged in the cylinder head Expired GB734268A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH734268X 1951-06-27

Publications (1)

Publication Number Publication Date
GB734268A true GB734268A (en) 1955-07-27

Family

ID=4532604

Family Applications (1)

Application Number Title Priority Date Filing Date
GB26119/51A Expired GB734268A (en) 1951-06-27 1951-11-07 Improved valve gear for internal combustion engines with valves arranged in the cylinder head

Country Status (1)

Country Link
GB (1) GB734268A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1489271A1 (en) * 2003-06-17 2004-12-22 HONDA MOTOR CO., Ltd. Valve driving system for internal combustion engine with different cam profiles

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1489271A1 (en) * 2003-06-17 2004-12-22 HONDA MOTOR CO., Ltd. Valve driving system for internal combustion engine with different cam profiles
US7140334B2 (en) 2003-06-17 2006-11-28 Honda Motor Co., Ltd. Valve train for internal combustion engine

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