GB1517842A – Engine decompressing device
– Google Patents
GB1517842A – Engine decompressing device
– Google Patents
Engine decompressing device
Info
Publication number
GB1517842A
GB1517842A
GB543/76A
GB54376A
GB1517842A
GB 1517842 A
GB1517842 A
GB 1517842A
GB 543/76 A
GB543/76 A
GB 543/76A
GB 54376 A
GB54376 A
GB 54376A
GB 1517842 A
GB1517842 A
GB 1517842A
Authority
GB
United Kingdom
Prior art keywords
engine
oil pressure
lever
starting
jan
Prior art date
1975-01-17
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
GB543/76A
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.)
Bernard Moteurs SA
Original Assignee
Bernard Moteurs SA
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.)
1975-01-17
Filing date
1976-06-07
Publication date
1978-07-12
1976-06-07
Application filed by Bernard Moteurs SA
filed
Critical
Bernard Moteurs SA
1978-07-12
Publication of GB1517842A
publication
Critical
patent/GB1517842A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
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
F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
F01L13/08—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for decompression, e.g. during starting; for changing compression ratio
F01L13/085—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for decompression, e.g. during starting; for changing compression ratio the valve-gear having an auxiliary cam protruding from the main cam profile
F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
F02N19/00—Starting aids for combustion engines, not otherwise provided for
F02N19/004—Aiding engine start by using decompression means or variable valve actuation
Abstract
1517842 Decompression apparatus to facilitate IC engine starting BERNARD-MOTEURS 7 Jan 1976 [17 Jan 1975] 00543/76 Headings F1B and F1K [ Also in Division F2] Decompression apparatus for facilitating the starting of an I.C. engine comprises a cam-shaft 1 having a bore 2 in which a piston 8 is movable by hydraulic pressure, e.g. engine lubricating oil pressure, against the action of spring 6, to move an end 13 of a lever 11 so that end 12 of the lever, which forms a retractable protrusion from the camshaft, is moved from its protruding to its retracted position. When in its protruding position before engine oil pressure has risen sufficiently on starting, the end 12 acts to open an engine valve e.g. an exhaust valve at the beginning of the compression stroke. By means of the modifications shown in dashed lines’in Fig. 2 and in Fig. 3 (not shown) the apparatus can function as an oil pressure relief valve. Fig. 2 shows the normal operating position, but if the oil pressure exceeds a set value, pistons 5 and 8 move further to the right so that oil can escape via a groove 20 and passage 3, the end 12 of the lever then entering a depression 19.
GB543/76A
1975-01-17
1976-06-07
Engine decompressing device
Expired
GB1517842A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
FR7501559A
FR2298000A1
(en)
1975-01-17
1975-01-17
DECOMPRESSION DEVICE TO FACILITATE THE LAUNCHING OF INTERNAL COMBUSTION ENGINES
Publications (1)
Publication Number
Publication Date
GB1517842A
true
GB1517842A
(en)
1978-07-12
Family
ID=9150008
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB543/76A
Expired
GB1517842A
(en)
1975-01-17
1976-06-07
Engine decompressing device
Country Status (6)
Country
Link
US
(1)
US4018203A
(en)
DE
(1)
DE2557804C3
(en)
FR
(1)
FR2298000A1
(en)
GB
(1)
GB1517842A
(en)
IT
(1)
IT1052763B
(en)
NL
(1)
NL7600390A
(en)
Cited By (1)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
GB2291157A
(en)
*
1994-07-08
1996-01-17
Outboard Marine Corp
Cylinder decompression arrangement in cam shaft
Families Citing this family (8)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
DE3003566A1
(en)
*
1980-02-01
1981-08-06
Klöckner-Humboldt-Deutz AG, 5000 Köln
BRAKE DEVICE FOR A VALVE CONTROLLED INTERNAL COMBUSTION ENGINE
US5375570A
(en)
*
1993-08-31
1994-12-27
Gas Research Institute
Engine compression release
US5823153A
(en)
*
1997-05-08
1998-10-20
Briggs & Stratton Corporation
Compressing release with snap-in components
US5957097A
(en)
*
1997-08-13
1999-09-28
Harley-Davidson Motor Company
Internal combustion engine with automatic compression release
US6539906B2
(en)
*
2001-03-30
2003-04-01
Tecumseh Products Company
Mechanical compression and vacuum release
US7228832B2
(en)
*
2004-03-23
2007-06-12
Tecumseh Products Company
Internal combustion engine with translatable camshaft
AT501030B1
(en)
*
2004-06-03
2006-10-15
Avl List Gmbh
Motorcycle for road or cross-country travel has diesel engine with exhaust gas turbo-supercharger
DE102013019751A1
(en)
*
2013-11-25
2015-05-28
intelli engineering GmbH
Decompression device for an internal combustion engine
Family Cites Families (5)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US868765A
(en)
*
1906-11-19
1907-10-22
Dock Gas Engine Company
Internal-combustion engine.
FR865039A
(en)
*
1939-04-27
1941-05-12
Suisse Construction Locomotive
Pressure relief device for internal combustion engines
US2323304A
(en)
*
1941-12-17
1943-07-06
Raymond H Bowman
Automatic pressure control for engines
US3395689A
(en)
*
1966-09-15
1968-08-06
Studebaker Corp
Engine decompression apparatus
US3511219A
(en)
*
1968-11-12
1970-05-12
Wisconsin Motors Corp
Automatic compression release
1975
1975-01-17
FR
FR7501559A
patent/FR2298000A1/en
active
Granted
1975-12-22
DE
DE2557804A
patent/DE2557804C3/en
not_active
Expired
1975-12-30
IT
IT70221/75A
patent/IT1052763B/en
active
1976
1976-01-09
US
US05/647,674
patent/US4018203A/en
not_active
Expired – Lifetime
1976-01-15
NL
NL7600390A
patent/NL7600390A/en
unknown
1976-06-07
GB
GB543/76A
patent/GB1517842A/en
not_active
Expired
Cited By (2)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
GB2291157A
(en)
*
1994-07-08
1996-01-17
Outboard Marine Corp
Cylinder decompression arrangement in cam shaft
GB2291157B
(en)
*
1994-07-08
1997-12-03
Outboard Marine Corp
Cylinder decompression arrangement in cam shaft
Also Published As
Publication number
Publication date
FR2298000B1
(en)
1977-07-15
DE2557804A1
(en)
1976-07-22
IT1052763B
(en)
1981-07-20
NL7600390A
(en)
1976-07-20
FR2298000A1
(en)
1976-08-13
DE2557804C3
(en)
1979-01-11
US4018203A
(en)
1977-04-19
DE2557804B2
(en)
1978-05-03
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Legal Events
Date
Code
Title
Description
1978-11-15
PS
Patent sealed [section 19, patents act 1949]
1992-09-02
PCNP
Patent ceased through non-payment of renewal fee
