GB565748A - Improvements in or relating to valve gear of internal-combustion engines - Google Patents

Improvements in or relating to valve gear of internal-combustion engines

Info

Publication number
GB565748A
GB565748A GB199843A GB199843A GB565748A GB 565748 A GB565748 A GB 565748A GB 199843 A GB199843 A GB 199843A GB 199843 A GB199843 A GB 199843A GB 565748 A GB565748 A GB 565748A
Authority
GB
United Kingdom
Prior art keywords
valve
master
cavity
cylinder
exhaust
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
GB199843A
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 GB199843A priority Critical patent/GB565748A/en
Publication of GB565748A publication Critical patent/GB565748A/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
    • F01L1/44—Multiple-valve gear or arrangements, not provided for in preceding subgroups, e.g. with lift and different 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
    • F01L1/18—Rocking arms or levers
    • F01L1/181—Centre pivot rocking arms
    • 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
    • F01L1/46—Component parts, details, or accessories, not provided for in preceding subgroups
    • 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
    • F01L1/02—Valve drive
    • F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
    • F01L1/047—Camshafts
    • F01L1/053—Camshafts overhead type
    • F01L2001/0537—Double overhead camshafts [DOHC]

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve Device For Special Equipments (AREA)

Abstract

565,748. Valves. BOORER, A. April 23, 1943, No. 1998. [Class 7 (vi)] In an engine having a valve chamber 10 containing inlet and exhaust valves 16, 17 which at the appropriate times are isolated from the engine cylinder by a master valve 11, the master valve 11 and the port it controls are arranged in a cavity 12 in the cylinder head and the head of the master valve, when open, approaches closely to the position of the crown of the piston at top dead-centre, the cavity constituting substantially the whole of the combustion space when the piston 15 is at top dead-centre. The cross-sectional area of the cavity transverse to the axis of the cylinder is kept to a minimum to make it comparable with the depth of the cavity which is determined by the lift of the valve necessary to ensure a minimum resistance to flow past the valve, the valve opening in the direction of the cylinder axis. In operation, the master valve 11 opens at the point in the normal cycle usual for the opening of the exhaust valve, but the exhaust valve 17 is by this time fully open and the master valve closes at the point in the cycle usual for the closing of the inlet valve, but the inlet valve 16 remains open for some time after this. The exhaust valve and the master valve are actuated by a common cam 18.
GB199843A 1943-04-23 1943-04-23 Improvements in or relating to valve gear of internal-combustion engines Expired GB565748A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB199843A GB565748A (en) 1943-04-23 1943-04-23 Improvements in or relating to valve gear of internal-combustion engines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB199843A GB565748A (en) 1943-04-23 1943-04-23 Improvements in or relating to valve gear of internal-combustion engines

Publications (1)

Publication Number Publication Date
GB565748A true GB565748A (en) 1944-11-27

Family

ID=9731808

Family Applications (1)

Application Number Title Priority Date Filing Date
GB199843A Expired GB565748A (en) 1943-04-23 1943-04-23 Improvements in or relating to valve gear of internal-combustion engines

Country Status (1)

Country Link
GB (1) GB565748A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2155102A (en) * 1984-02-29 1985-09-18 James Domenic Krajancich I.c. engine intake and exhaust valve gear
GB2361031A (en) * 2000-04-05 2001-10-10 Tomas Teixeira Multifunction valve i.c. piston engine
EP2569518A2 (en) * 2010-05-13 2013-03-20 Itzhak Gonigman Method and system for internal combustion engine
CN103133077A (en) * 2011-11-23 2013-06-05 韩国文 Engine double type auxiliary air valve
GB2503745A (en) * 2012-07-06 2014-01-08 Ben Luke Kardoosh Hybrid-valve four stroke engine

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2155102A (en) * 1984-02-29 1985-09-18 James Domenic Krajancich I.c. engine intake and exhaust valve gear
GB2361031A (en) * 2000-04-05 2001-10-10 Tomas Teixeira Multifunction valve i.c. piston engine
EP2569518A2 (en) * 2010-05-13 2013-03-20 Itzhak Gonigman Method and system for internal combustion engine
EP2569518A4 (en) * 2010-05-13 2014-03-19 Itzhak Gonigman Method and system for internal combustion engine
CN103133077A (en) * 2011-11-23 2013-06-05 韩国文 Engine double type auxiliary air valve
GB2503745A (en) * 2012-07-06 2014-01-08 Ben Luke Kardoosh Hybrid-valve four stroke engine

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