BR9713856A - Freio de exaustão - Google Patents

Freio de exaustão

Info

Publication number
BR9713856A
BR9713856A BR9713856-8A BR9713856A BR9713856A BR 9713856 A BR9713856 A BR 9713856A BR 9713856 A BR9713856 A BR 9713856A BR 9713856 A BR9713856 A BR 9713856A
Authority
BR
Brazil
Prior art keywords
brake
valve
flow
exhaust
ideal
Prior art date
Application number
BR9713856-8A
Other languages
English (en)
Inventor
Norman Schaefer
Gregory T H Davies
Original Assignee
Diesel Engine Retarders Inc
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 Diesel Engine Retarders Inc filed Critical Diesel Engine Retarders Inc
Publication of BR9713856A publication Critical patent/BR9713856A/pt

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
    • F02D9/08—Throttle valves specially adapted therefor; Arrangements of such valves in conduits
    • F02D9/10—Throttle valves specially adapted therefor; Arrangements of such valves in conduits having pivotally-mounted flaps
    • F02D9/1005—Details of the flap
    • F02D9/101—Special flap shapes, ribs, bores or the like
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
    • F02D9/04—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits concerning exhaust conduits
    • F02D9/06—Exhaust brakes

Abstract

"FREIO DE EXAUSTãO". Um freio de exaustão (10) para um motor de combustão interna é descrito. As superfícies internas do freio de exaustão (10) são formatadas de forma aerodinâmica para reduzir a incidência de fluxo turbulento através do freio de exaustão (10). O formato da passagem interna (102) através do alojamento de freio (100) pode ser ditado pela exigência da manutenção de um fluxo o mais próximo de um fluxo laminar possível através da passagem (102) quando a válvula de freio (200) está aberta. Os alojamentos de freio ideais (100) da passagem interna (102) podem ser determinados para freios de exaustão dos vários formatos e tamanhos. Os formatos ideais podem ser tipificados como possuindo espessuras de paredes não uniforme. Os formatos ideais das superfícies de freio interno, incluindo os da válvula (200), também poderm ser tipificados pela eliminação das bordas quadradas (que acionam a turbulência). O fluxo ideal através do freio de exaustão (10) também pode ser obtido pela redução do volume no fluxo de exaustão (minimização do perfil da válvula (200) no fluxo quando a válvula (200) está aberta). A válvula (200) preferivelmente possui um perfil afunilado, que pode ajudar a reduzir a contribuição da válvula (200) para o fluxo turbulento no freio (10).
BR9713856-8A 1996-12-04 1997-12-03 Freio de exaustão BR9713856A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/754,046 US5845748A (en) 1996-12-04 1996-12-04 Low restriction exhaust brake
PCT/US1997/022431 WO1998024671A1 (en) 1996-12-04 1997-12-03 Low restriction exhaust brake

Publications (1)

Publication Number Publication Date
BR9713856A true BR9713856A (pt) 2000-03-14

Family

ID=25033270

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9713856-8A BR9713856A (pt) 1996-12-04 1997-12-03 Freio de exaustão

Country Status (5)

Country Link
US (1) US5845748A (pt)
EP (1) EP0942862A4 (pt)
JP (1) JP2001505639A (pt)
BR (1) BR9713856A (pt)
WO (1) WO1998024671A1 (pt)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8820276B2 (en) 1997-12-11 2014-09-02 Jacobs Vehicle Systems, Inc. Variable lost motion valve actuator and method
US7132087B2 (en) * 2001-12-13 2006-11-07 Caterpillar Inc Catalytic converter assembly
US20050087171A1 (en) * 2002-10-02 2005-04-28 Cory Lown Low restriction engine brake and methods
DE10251117A1 (de) * 2002-11-02 2004-05-19 Deutsche Montan Technologie Gmbh Vorrrichtung zum Erzeugen eines Frequenzspektrums in einer Rohrleitung
SE528647C2 (sv) * 2005-05-18 2007-01-09 Scania Cv Ab Avgasbroms
EP2037098B1 (en) * 2005-11-22 2016-06-15 Volvo Lastvagnar AB Turbo compound internal combustion engine
DE102009030901A1 (de) * 2009-06-29 2010-12-30 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Drucksteuerventilanordnung mit Druckmittelkanal mit ovalem Querschnitt
DE102012200054A1 (de) * 2012-01-03 2013-07-04 Continental Automotive Gmbh Ventilvorrichtung für ein Kraftfahrzeug
DE102016119426B4 (de) 2016-10-12 2020-03-12 Pierburg Gmbh Klappenvorrichtung für eine Verbrennungskraftmaschine

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR849439A (fr) * 1938-02-05 1939-11-23 Saurer Adolph Dispositif de freinage pour véhicules à moteurs à combustion interne
GB783900A (en) * 1955-02-25 1957-10-02 Thomas Ash & Company Ltd Improvements in or relating to exhaust brakes for vehicles
JPS6084482A (ja) * 1983-10-15 1985-05-13 Yamatake Honeywell Co Ltd 弁
DE3533393A1 (de) * 1985-09-19 1987-03-26 Alfred Schmidt Staudruckbegrenzung mit sicherungsventil
DE3712020A1 (de) * 1987-04-09 1988-10-27 Schaeffler Waelzlager Kg Ventilsteuereinrichtung
DE3841723A1 (de) * 1988-12-10 1990-06-13 Peter Rust Elektronische drosselklappe
DE4311081A1 (de) * 1993-04-03 1994-10-06 Vdo Schindling Steuerklappe
JPH07217458A (ja) * 1994-01-31 1995-08-15 Jidosha Kiki Co Ltd バタフライバルブ
US5445248A (en) * 1994-03-07 1995-08-29 Jenara Enterprises Ltd. Exhaust brake
JPH0814408A (ja) * 1994-06-28 1996-01-16 Fuji Oozx Inc バタフライバルブ
JPH0814407A (ja) * 1994-06-28 1996-01-16 Fuji Oozx Inc バタフライバルブ
US5676110A (en) * 1996-03-14 1997-10-14 Meneely; Vincent Allan Exhaust brake with offset butterfly and method of reducing back pressure therein

Also Published As

Publication number Publication date
US5845748A (en) 1998-12-08
EP0942862A4 (en) 2000-11-15
EP0942862A1 (en) 1999-09-22
WO1998024671A1 (en) 1998-06-11
JP2001505639A (ja) 2001-04-24

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Legal Events

Date Code Title Description
FA10 Dismissal: dismissal - article 33 of industrial property law
B11Y Definitive dismissal - extension of time limit for request of examination expired [chapter 11.1.1 patent gazette]