CA2047219A1 - A method and a device for engine braking a four stroke internal combustion engine - Google Patents

A method and a device for engine braking a four stroke internal combustion engine

Info

Publication number
CA2047219A1
CA2047219A1 CA2047219A CA2047219A CA2047219A1 CA 2047219 A1 CA2047219 A1 CA 2047219A1 CA 2047219 A CA2047219 A CA 2047219A CA 2047219 A CA2047219 A CA 2047219A CA 2047219 A1 CA2047219 A1 CA 2047219A1
Authority
CA
Canada
Prior art keywords
engine
stroke
exhaust system
internal combustion
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.)
Granted
Application number
CA2047219A
Other languages
French (fr)
Other versions
CA2047219C (en
Inventor
Ulrich Gobert
Ola Danielson
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.)
Volvo AB
Original Assignee
Ulrich Gobert
Ola Danielson
Ab Volvo
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=20375056&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CA2047219(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Ulrich Gobert, Ola Danielson, Ab Volvo filed Critical Ulrich Gobert
Publication of CA2047219A1 publication Critical patent/CA2047219A1/en
Application granted granted Critical
Publication of CA2047219C publication Critical patent/CA2047219C/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F02D13/04—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
    • 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
    • F01L1/08—Shape of cams
    • 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

The invention relates to a method and an arrangement for engine braking a four-stroke internal combustion engine. The engine has for each cylinder (2) at least one inlet valve (7) and at least one exhaust valve (9) for controlling communication between a combustion chamber (5) in the cylinder (2) and an inlet system (8) and an exhaust system (10) respectively.
In accordance with the invention) the arrangement also includes means for establishing communication between the combustion chamber (5) and the exhaust system (10) in conjunction with the exhaust stroke and also when the piston (3) is located in the proximity of its bottom-dead-centre position after the inlet stroke and during the latter part of the compression stroke and during at least a part of the expansion stroke. Communication of the combustion chamber (5) with the exhaust system (10) is effected upstream of a throttling device (13) provided in the exhaust system) this throttling device being operative to throttle at least a part of the flow through the exhaust system (10) during an engine braking operation, therewith to increase the pressure upstream of the throttling device (13).
CA002047219A 1989-02-15 1990-02-15 A method and a device for engine braking a four stroke internal combustion engine Expired - Lifetime CA2047219C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE8900517-7 1989-02-15
SE8900517A SE466320B (en) 1989-02-15 1989-02-15 PROCEDURES AND DEVICE FOR ENGINE BRAKING WITH A FIREWORKS ENGINE
PCT/SE1990/000102 WO1990009514A1 (en) 1989-02-15 1990-02-15 A method and a device for engine braking a four stroke internal combustion engine

Publications (2)

Publication Number Publication Date
CA2047219A1 true CA2047219A1 (en) 1990-08-16
CA2047219C CA2047219C (en) 1999-11-30

Family

ID=20375056

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002047219A Expired - Lifetime CA2047219C (en) 1989-02-15 1990-02-15 A method and a device for engine braking a four stroke internal combustion engine

Country Status (13)

Country Link
US (1) US5146890A (en)
EP (1) EP0458857B1 (en)
JP (1) JP2931090B2 (en)
KR (1) KR0158458B1 (en)
AT (1) ATE93929T1 (en)
AU (1) AU637352B2 (en)
BR (1) BR9007110A (en)
CA (1) CA2047219C (en)
DE (1) DE69003094T2 (en)
DK (1) DK0458857T3 (en)
ES (1) ES2044564T3 (en)
SE (1) SE466320B (en)
WO (1) WO1990009514A1 (en)

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Also Published As

Publication number Publication date
DE69003094D1 (en) 1993-10-07
CA2047219C (en) 1999-11-30
SE8900517D0 (en) 1989-02-15
EP0458857A1 (en) 1991-12-04
JPH04503987A (en) 1992-07-16
KR920701618A (en) 1992-08-12
ES2044564T3 (en) 1994-01-01
DE69003094T2 (en) 1994-04-07
WO1990009514A1 (en) 1990-08-23
DK0458857T3 (en) 1994-03-07
BR9007110A (en) 1991-11-12
EP0458857B1 (en) 1993-09-01
SE8900517L (en) 1990-08-16
SE466320B (en) 1992-01-27
AU637352B2 (en) 1993-05-27
US5146890A (en) 1992-09-15
AU5105490A (en) 1990-09-05
ATE93929T1 (en) 1993-09-15
KR0158458B1 (en) 1998-12-15
JP2931090B2 (en) 1999-08-09

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