GB1128266A - Improvements in or relating to internal combustion engines - Google Patents

Improvements in or relating to internal combustion engines

Info

Publication number
GB1128266A
GB1128266A GB4743466A GB4743466A GB1128266A GB 1128266 A GB1128266 A GB 1128266A GB 4743466 A GB4743466 A GB 4743466A GB 4743466 A GB4743466 A GB 4743466A GB 1128266 A GB1128266 A GB 1128266A
Authority
GB
United Kingdom
Prior art keywords
valve
inlet
valves
rocker
lever
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
GB4743466A
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.)
MAN AG
Original Assignee
MAN Maschinenfabrik Augsburg Nuernberg AG
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 MAN Maschinenfabrik Augsburg Nuernberg AG filed Critical MAN Maschinenfabrik Augsburg Nuernberg AG
Publication of GB1128266A publication Critical patent/GB1128266A/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
    • F01L1/26—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of two or more valves operated simultaneously by same transmitting-gear; peculiar to machines or engines with more than two lift-valves per cylinder
    • F01L1/265—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of two or more valves operated simultaneously by same transmitting-gear; peculiar to machines or engines with more than two lift-valves per cylinder peculiar to machines or engines with three or more intake valves per cylinder
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B2275/00—Other engines, components or details, not provided for in other groups of this subclass
    • F02B2275/14—Direct injection into combustion chamber
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B2275/00—Other engines, components or details, not provided for in other groups of this subclass
    • F02B2275/34—Lateral camshaft position
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B3/00—Engines characterised by air compression and subsequent fuel addition
    • F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve Device For Special Equipments (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)

Abstract

1,128,266. Valve gear. MASCHINENFABRIK AUGSBURG-NURNBERG A.G. Oct. 21, 1966 [Nov. 17, 1965], No.47434/66. Heading F1B. In a four stroke I.C. engine an additional inlet valve 7, Fig.2 opens into a combustion chamber (5) Fig. 1 (not shown) of the piston when the latter is in the t.d.c. region, the additional inlet valve being opened and closed by actuating means at an instant in the engine cycle which is different from the instant of opening or closing of the other inlet valves or valves 1 to increase the effective valve overlap or to increase the effective duration of inlet valve opening. The actuating means comprises a push rod 13, Fig. 4 acting through a rocker 14 on a pressure plate 17 bearing on all three valves 1, 7 so that the point of connection is nearest valve 7. Movement of the rocker and pressure plate causes valve 7 to be opened until nose 19 engages stop 20 so that further movement causes the valves 1 to be opened with the valve 7 remaining open. Alternatively valve 7 may be separately actuated e.g. hydraulically. In supercharged engines valve 7 opens 20 degrees - 30 degrees before t.d.c. and may be opened twice in each cycle. The inlet ducts may be separate or common and shaped to assist swirl. The inlet valves may have fins to assist swirl. The additional inlet valve may form part of a coaxial arrangement of inlet and exhaust valve. In another embodiment a spring-loaded push rod 27, Fig.7 mounted on the exhaust rocker lever (21), Fig. 6 (not shown) causes downward movement of lever 25. Simultaneously a pawl 29 is moved anti-clockwise by spring 28 so that its nose engages roller 30 to arrest lever 25 with the valve 7 open when the exhaust valve rocker (21) moves in the closing direction. A roller 31 on the inlet rocker lever (14) then engages the pawl 29 to move it clockwise against springs 28 so that lever 25 moves to its datum position and valve 7 is closed.
GB4743466A 1965-11-17 1966-10-21 Improvements in or relating to internal combustion engines Expired GB1128266A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEM0067299 1965-11-17

Publications (1)

Publication Number Publication Date
GB1128266A true GB1128266A (en) 1968-09-25

Family

ID=7312137

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4743466A Expired GB1128266A (en) 1965-11-17 1966-10-21 Improvements in or relating to internal combustion engines

Country Status (3)

Country Link
BE (1) BE689843A (en)
DE (1) DE1451949A1 (en)
GB (1) GB1128266A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2116631A (en) * 1982-03-19 1983-09-28 Bayerische Motoren Werke Ag I.c. Engine valve gear
WO1987005356A1 (en) * 1986-03-07 1987-09-11 Collins Motor Corporation Limited Poppet valve assemblies

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4106439A (en) * 1975-05-27 1978-08-15 Mitsuhiro Kanao Internal combustion engine
DE9405442U1 (en) * 1994-03-31 1995-08-03 FEV Motorentechnik GmbH & Co. KG, 52078 Aachen 4-valve piston internal combustion engine

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2116631A (en) * 1982-03-19 1983-09-28 Bayerische Motoren Werke Ag I.c. Engine valve gear
WO1987005356A1 (en) * 1986-03-07 1987-09-11 Collins Motor Corporation Limited Poppet valve assemblies
EP0237295A1 (en) * 1986-03-07 1987-09-16 Collins Motor Corporation Limited Poppet valve assemblies
US4819591A (en) * 1986-03-07 1989-04-11 Collins Motor Corporation Limited Poppet valve assemblies
AU604235B2 (en) * 1986-03-07 1990-12-13 Collins Motor Corporation Limited Poppet valve assemblies

Also Published As

Publication number Publication date
DE1451949A1 (en) 1969-07-10
BE689843A (en) 1967-05-02

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