GB782351A - Improvements in or relating to internal combustion engine assemblies - Google Patents

Improvements in or relating to internal combustion engine assemblies

Info

Publication number
GB782351A
GB782351A GB25370/52A GB2537052A GB782351A GB 782351 A GB782351 A GB 782351A GB 25370/52 A GB25370/52 A GB 25370/52A GB 2537052 A GB2537052 A GB 2537052A GB 782351 A GB782351 A GB 782351A
Authority
GB
United Kingdom
Prior art keywords
rod
adjustment
parts
valve
inlet
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
GB25370/52A
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 GB25370/52A priority Critical patent/GB782351A/en
Publication of GB782351A publication Critical patent/GB782351A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D13/00—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing
    • F02D13/02—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing during engine operation
    • F02D13/0203—Variable control of 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
    • F01L1/18—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
    • F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
    • F01L13/0015—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque
    • F01L13/0021—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque by modification of rocker arm ratio
    • F01L13/0026—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque by modification of rocker arm ratio by means of an eccentric
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D13/00—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing
    • F02D13/02—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing during engine operation
    • F02D13/0223—Variable control of the intake valves only
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Valve Device For Special Equipments (AREA)

Abstract

782,351. Valve gear; regulating. FELL, C. A. Jan. 7. 1954 [Oct. 9, 1952], No. 25370/52. Class 7(6) A carburetter-fed engine is controlled by adjustment of the inlet valve gear from a manual or foot-operated accelerator level 22 instead of by adjustment of the throttle valve. The pedal 22 is connected by a linkage system 20, 21 ,to a rod 19 connected to arms 18 of eccentric bushes 17 on which the inlet rockers 11 are mounted, adjustment of which bushes varies the valve lift and hence the power output. The rockers are actuated from cams 15, Fig. 2, through divided push rods 13, the upper and lower parts of which are urged apart by a spring 24 and are kept aligned by a sleeve 27 attached to the upper part by a collar 25 and sliding over a collar 26 on the lower part. Adjustment of the bushes 17 varies the clearance between the two parts of each push rod and hence varies the valve lift. In a modification the lift of the exhaust valves is varied simultaneously with that of the inlet valves. In a modified push rod. Fig. 4. the two parts of the rod 13 are aligned by a sleeve 33 and the opposing ends of the rod are provided with plugs 32 and are urged apart by a spring 36 acting on collars 34, 35 the sleeve 27 being in slidable contact with both parts of the rod 13. The Provisional Specification describes a modification in which the inlet valve lift was controlled by an adjustable wedge positioned between the tappet and valve stem and controlled by a governor. Specification 321,931 [Class 7 (vi)] is referred to.
GB25370/52A 1952-10-09 1952-10-09 Improvements in or relating to internal combustion engine assemblies Expired GB782351A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB25370/52A GB782351A (en) 1952-10-09 1952-10-09 Improvements in or relating to internal combustion engine assemblies

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB25370/52A GB782351A (en) 1952-10-09 1952-10-09 Improvements in or relating to internal combustion engine assemblies

Publications (1)

Publication Number Publication Date
GB782351A true GB782351A (en) 1957-09-04

Family

ID=10226576

Family Applications (1)

Application Number Title Priority Date Filing Date
GB25370/52A Expired GB782351A (en) 1952-10-09 1952-10-09 Improvements in or relating to internal combustion engine assemblies

Country Status (1)

Country Link
GB (1) GB782351A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2861130A1 (en) * 2003-10-15 2005-04-22 Renault Sa Valve gear drive device for thermal engine, has tilting pawl equipped with central portion on which rotating cam is pressed, and toothed section and worm controlling rotation of arm around axis aligned with driving shaft of cam
FR2899276A1 (en) * 2006-03-28 2007-10-05 Renault Sas Intake and exhaust valves` variable lifting control device for e.g. petrol engine, has cam follower comprising support zones with clearance compensating device for compensating clearance induced by displacement of axle
EP1936133A2 (en) * 2006-12-20 2008-06-25 Yamaha Hatsudoki Kabushiki Kaisha Continuously variable type valve driving system for engine
US7581527B2 (en) 2006-11-28 2009-09-01 Iveco S.P.A. Internal combustion engine provided with a valve opening variation system and vehicle equipped with such engine
WO2011141833A3 (en) * 2010-05-10 2012-01-05 Fiat Powertrain Technologies S.P.A. Multi-cylinder internal combustion engine with variable actuation of the engine valves
EP3061929A4 (en) * 2013-10-25 2017-06-14 Yanmar Co., Ltd. Variable valve timing mechanism and engine with variable valve timing mechanism

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2861130A1 (en) * 2003-10-15 2005-04-22 Renault Sa Valve gear drive device for thermal engine, has tilting pawl equipped with central portion on which rotating cam is pressed, and toothed section and worm controlling rotation of arm around axis aligned with driving shaft of cam
FR2899276A1 (en) * 2006-03-28 2007-10-05 Renault Sas Intake and exhaust valves` variable lifting control device for e.g. petrol engine, has cam follower comprising support zones with clearance compensating device for compensating clearance induced by displacement of axle
US7581527B2 (en) 2006-11-28 2009-09-01 Iveco S.P.A. Internal combustion engine provided with a valve opening variation system and vehicle equipped with such engine
EP1927734A3 (en) * 2006-11-28 2010-01-13 Iveco S.p.A. Internal combustion engine provided with a valve opening variation system and vehicle equipped with such engine
CN101191430B (en) * 2006-11-28 2011-11-16 依维柯公司 Internal combustion engine provided with a valve opening variation system and vehicle equipped with such engine
RU2451794C2 (en) * 2006-11-28 2012-05-27 Ивеко С.П.А. Ice equipped with valve opening variation system, and transport facility with such ice
EP1936133A2 (en) * 2006-12-20 2008-06-25 Yamaha Hatsudoki Kabushiki Kaisha Continuously variable type valve driving system for engine
EP1936133A3 (en) * 2006-12-20 2010-09-08 Yamaha Hatsudoki Kabushiki Kaisha Continuously variable type valve driving system for engine
US7980210B2 (en) 2006-12-20 2011-07-19 Yamaha Hatsudoki Kabushiki Kaisha Variable valve drive system for engine
WO2011141833A3 (en) * 2010-05-10 2012-01-05 Fiat Powertrain Technologies S.P.A. Multi-cylinder internal combustion engine with variable actuation of the engine valves
EP3061929A4 (en) * 2013-10-25 2017-06-14 Yanmar Co., Ltd. Variable valve timing mechanism and engine with variable valve timing mechanism
US10072540B2 (en) 2013-10-25 2018-09-11 Yanmar Co., Ltd. Variable valve timing mechanism and engine with variable valve timing mechanism

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