ZA838679B - Compression release engine retarder for multi-cylinder internal combustion engines - Google Patents

Compression release engine retarder for multi-cylinder internal combustion engines

Info

Publication number
ZA838679B
ZA838679B ZA838679A ZA838679A ZA838679B ZA 838679 B ZA838679 B ZA 838679B ZA 838679 A ZA838679 A ZA 838679A ZA 838679 A ZA838679 A ZA 838679A ZA 838679 B ZA838679 B ZA 838679B
Authority
ZA
South Africa
Prior art keywords
engine
compression release
retarder
internal combustion
combustion engines
Prior art date
Application number
ZA838679A
Inventor
Raymond Noel Quenneville
Original Assignee
Jacobs Mfg Co
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 Jacobs Mfg Co filed Critical Jacobs Mfg Co
Publication of ZA838679B publication Critical patent/ZA838679B/en

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
    • F02D13/04—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing during engine operation using engine as brake
    • 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
    • F01L13/06—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for braking
    • 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
    • F01L13/06—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for braking
    • F01L13/065—Compression release engine retarders of the "Jacobs Manufacturing" type
    • 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
    • F01L9/00—Valve-gear or valve arrangements actuated non-mechanically
    • F01L9/10—Valve-gear or valve arrangements actuated non-mechanically by fluid means, e.g. hydraulic
    • 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
    • F01L9/00—Valve-gear or valve arrangements actuated non-mechanically
    • F01L9/10—Valve-gear or valve arrangements actuated non-mechanically by fluid means, e.g. hydraulic
    • F01L9/11—Valve-gear or valve arrangements actuated non-mechanically by fluid means, e.g. hydraulic in which the action of a cam is being transmitted to a valve by a liquid column
    • 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
    • F02B75/00—Other engines
    • F02B75/02—Engines characterised by their cycles, e.g. six-stroke
    • F02B2075/022—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
    • F02B2075/027—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle four

Abstract

A compression release engine retarder for a multi-cylinder four-stroke cycle engine is disclosed. The retarder incorporates an hydraulic pulse generator (85) which in one embodiment comprises a multi-chamber positive displacement pump of the piston (146) and cylinder (144) type which is positively driven at engine speed or at half engine speed in synchronism with the engine crankshaft (86). Means (84,96,97) are provided to adjust the timing of the hydraulic pulses so as to control precisely the opening of the engine exhaust valves and to maximize the compression release retarding power developed by the engine. Additional means (182,184,186,188,190,192,194) are provided to control the timing of the hydraulic pulses in response to the boost pressure in the engine inlet manifold produced by the engine turbocharger.
ZA838679A 1982-12-09 1983-11-21 Compression release engine retarder for multi-cylinder internal combustion engines ZA838679B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US44835082A 1982-12-09 1982-12-09

Publications (1)

Publication Number Publication Date
ZA838679B true ZA838679B (en) 1984-07-25

Family

ID=23779958

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA838679A ZA838679B (en) 1982-12-09 1983-11-21 Compression release engine retarder for multi-cylinder internal combustion engines

Country Status (15)

Country Link
EP (1) EP0111232B1 (en)
JP (1) JPS59110820A (en)
KR (1) KR890002917B1 (en)
AT (1) ATE20268T1 (en)
AU (1) AU565286B2 (en)
BR (1) BR8306765A (en)
CA (1) CA1247483A (en)
DE (1) DE3363963D1 (en)
ES (1) ES527909A0 (en)
IE (1) IE54866B1 (en)
IN (1) IN160156B (en)
MX (1) MX160121A (en)
NO (1) NO834522L (en)
NZ (1) NZ206324A (en)
ZA (1) ZA838679B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61110814U (en) * 1984-12-25 1986-07-14
US4592319A (en) * 1985-08-09 1986-06-03 The Jacobs Manufacturing Company Engine retarding method and apparatus
AT404288B (en) * 1986-10-30 1998-10-27 Avl Verbrennungskraft Messtech ENGINE BRAKE IN AN INTERNAL COMBUSTION ENGINE FOR MOTOR VEHICLES
DE4038334C1 (en) * 1990-12-01 1991-11-28 Mercedes-Benz Aktiengesellschaft, 7000 Stuttgart, De
DE59303199D1 (en) * 1993-01-25 1996-08-14 Steyr Nutzfahrzeuge Engine brake in a 4-stroke internal combustion engine of a commercial vehicle

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2635544A (en) * 1948-03-06 1953-04-21 Lossau Earl Hydraulic valve lifting mechanism
US2829628A (en) * 1954-08-30 1958-04-08 Nordberg Manufacturing Co Hydraulic valve actuating mechanism
FR1255370A (en) * 1960-01-18 1961-03-10 Piston pump without valve with linear flow and pressure
US4206728A (en) * 1978-05-01 1980-06-10 General Motors Corporation Hydraulic valve actuator system
US4271796A (en) * 1979-06-11 1981-06-09 The Jacobs Manufacturing Company Pressure relief system for engine brake

Also Published As

Publication number Publication date
IE54866B1 (en) 1990-02-28
JPS59110820A (en) 1984-06-26
NO834522L (en) 1984-06-12
IN160156B (en) 1987-06-27
ATE20268T1 (en) 1986-06-15
EP0111232A1 (en) 1984-06-20
JPH0233850B2 (en) 1990-07-31
NZ206324A (en) 1986-02-21
KR890002917B1 (en) 1989-08-11
KR840007133A (en) 1984-12-05
EP0111232B1 (en) 1986-06-04
BR8306765A (en) 1984-07-17
CA1247483A (en) 1988-12-28
AU2149183A (en) 1984-06-14
MX160121A (en) 1989-12-01
ES8502211A1 (en) 1984-12-16
AU565286B2 (en) 1987-09-10
DE3363963D1 (en) 1986-07-10
ES527909A0 (en) 1984-12-16
IE832882L (en) 1984-06-09

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