EP0215201A2 - Limitation de la pression dynamique avec soupape de sécurité - Google Patents

Limitation de la pression dynamique avec soupape de sécurité Download PDF

Info

Publication number
EP0215201A2
EP0215201A2 EP86108367A EP86108367A EP0215201A2 EP 0215201 A2 EP0215201 A2 EP 0215201A2 EP 86108367 A EP86108367 A EP 86108367A EP 86108367 A EP86108367 A EP 86108367A EP 0215201 A2 EP0215201 A2 EP 0215201A2
Authority
EP
European Patent Office
Prior art keywords
valve
spring
closed position
valve body
throttle valve
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.)
Withdrawn
Application number
EP86108367A
Other languages
German (de)
English (en)
Other versions
EP0215201A3 (fr
Inventor
Alfred Schmidt
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0215201A2 publication Critical patent/EP0215201A2/fr
Publication of EP0215201A3 publication Critical patent/EP0215201A3/fr
Withdrawn legal-status Critical Current

Links

Images

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
    • F02D9/04—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits concerning exhaust conduits
    • F02D9/06—Exhaust brakes

Definitions

  • the invention relates to a device for limiting the dynamic pressure of an exhaust motor brake, in which a throttle valve is movably mounted in an exhaust pipe from an open position to a closed position, a valve bore passing through the throttle valve in the closed position is provided in the exhaust pipe, a valve body displaceable in the valve bore by means of a The spring is pushed into the closed position and the cross-section of the exhaust pipe is round, the throttle valve is elliptical and the throttle valve is in a slightly inclined position when the valve is in the closed position is arranged in the valve body and the end face of the valve body is curved to match the curvature of the inner surface of the exhaust pipe.
  • An object of the invention is therefore to provide a device of the type mentioned, whose safety valve responds with greater reliability when the upper dynamic pressure limit is exceeded, adapted to the extent of the exceeding.
  • the invention provides a device of the type mentioned at the outset, which is characterized in that there is a narrow gap between the throttle valve in the closed position and the valve body in the closed position and the characteristic curve of the spring under a ratio of spring force (N. ): Travel (mm) increases from 1.5 - 2.5: 1.
  • the narrow gap extending over the valve body prevents the valve body from being sucked in by the flowing gas and prevented from further opening movement when the valve body is opened slightly.
  • the increase in the spring characteristic is chosen so that the valve body changes with increasing excess pressure, taking into account the suction effect withdraws proportionally.
  • Exhaust brakes usually work with a dynamic pressure of 4 - 7 bar. Adapted to this, the narrow gap is about 0.25-0.5 mm wide. The ratio of spring force to spring travel is usually around 2: 1.
  • a piece of an exhaust pipe (1) with a circular cross section is provided, in which a throttle valve (2) can be pivoted about an axis (3) is arranged, which is located in the middle of half the height of the inner diameter of the exhaust pipe.
  • the throttle valve (2) is elliptical in shape and, as can be seen in FIGS. 1, 2 and 4, is in a slightly inclined position when it is in the closed position. In the closed position, the throttle valve (2) turns the inside of the exhaust pipe (1) towards a circumferential end face (4).
  • the throttle valve (2) is pivoted from the closed position shown in dashed lines in FIG. 4 into a horizontal open position and back via a crank mechanism (5) by means of a piston-cylinder device (6).
  • a valve housing (7) is provided on the top of the exhaust pipe (1), which extends to the wall of the exhaust pipe and covers it from the outside.
  • the valve housing (7) forms a valve bore (8) which is circular in cross section and tapers on the side facing the interior of the exhaust pipe (1) and thus forms an inner stop (9).
  • the valve bore (8) receives a valve body (10), which widens in the direction from the inside to the outside and rests in the closed position on the stop (9) of the valve housing.
  • the valve body (10), facing the interior of the exhaust pipe has a spherical shell-shaped raised face (11) and projects above the face (4) the throttle valve (2) in the axial direction of the exhaust pipe (1) seen on both sides with a considerable area.
  • the valve body (10) has an elongated stamp (12) on the back, which protrudes into a cap (13).
  • This cap is attached to the valve housing (7) and secured to it by means of a snap ring.
  • a front bent end strip of the cap forms a rear stop (14) for the valve body (10) which limits the back and forth movement of the valve body.
  • a discharge channel (16) of quite large cross-section which opens into the valve bore (8) in such a way that it only partially extends from the valve body (10) when the valve body (10) is in the advanced position is closed, ie that it is partially open and that according to Fig. 2 it is at least partially open even when the valve body is fully retracted, i.e. is only partially blocked by the valve body.
  • a helical spring (17) made of wire, which Tar on the bottom of the cap is supported.
  • the support is provided by an adjusting device (18), which does not need to be provided.
  • the characteristic curve of the spring (17) is shown in FIG. 5. 6, the advanced valve body with the end face (11) is set back by a narrow gap (19) with respect to the inner circumferential surface of the exhaust pipe (1) and also forms this gap with the end face (4) of the throttle valve (2) in the closed position. .

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Safety Valves (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
  • Exhaust Silencers (AREA)
  • Lift Valve (AREA)
EP86108367A 1985-09-19 1986-06-19 Limitation de la pression dynamique avec soupape de sécurité Withdrawn EP0215201A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19853533393 DE3533393A1 (de) 1985-09-19 1985-09-19 Staudruckbegrenzung mit sicherungsventil
DE3533393 1985-09-19

Publications (2)

Publication Number Publication Date
EP0215201A2 true EP0215201A2 (fr) 1987-03-25
EP0215201A3 EP0215201A3 (fr) 1988-04-06

Family

ID=6281359

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86108367A Withdrawn EP0215201A3 (fr) 1985-09-19 1986-06-19 Limitation de la pression dynamique avec soupape de sécurité

Country Status (5)

Country Link
US (1) US4750459A (fr)
EP (1) EP0215201A3 (fr)
JP (1) JPS6278439A (fr)
DE (1) DE3533393A1 (fr)
ES (1) ES2000333A6 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19540060A1 (de) * 1995-10-27 1997-04-30 Daimler Benz Ag Motorbremsvorrichtung
CN102852654A (zh) * 2012-09-18 2013-01-02 浙江亿日气动科技有限公司 有凹面活塞套的限压泄气辅助制动阀装置
CN102852651A (zh) * 2012-09-18 2013-01-02 浙江亿日气动科技有限公司 之字形通道的限压泄气辅助制动阀装置
CN102852649A (zh) * 2012-09-18 2013-01-02 浙江亿日气动科技有限公司 有活塞挺杆的限压泄气辅助制动阀装置
CN102852648A (zh) * 2012-09-18 2013-01-02 浙江亿日气动科技有限公司 圆弧形泄压口的限压泄气辅助制动阀装置

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3743569A1 (de) * 1987-12-22 1989-07-13 Alfred Schmidt Schiebeventil mit mengenregulierung
GB9014486D0 (en) * 1990-06-29 1990-08-22 Dewandre Co Ltd C Exhaust brake variable orifice
GB9024644D0 (en) * 1990-11-13 1991-01-02 Dewandre Co Ltd C An exhaust brake
US5845748A (en) * 1996-12-04 1998-12-08 Diesel Engine Retarders, Inc. Low restriction exhaust brake
KR19980063386A (ko) * 1996-12-26 1998-10-07 오니시 요시유키 액츄에이터 및 그것을 사용한 배기브레이크장치
US6179096B1 (en) * 1997-11-12 2001-01-30 Diesel Engine Retarders, Inc. Exhaust brake variable bypass circuit
WO1999041495A1 (fr) * 1998-02-17 1999-08-19 Diesel Engine Retarders, Inc. Dispositif de restriction de l'echappement
FR2777946B1 (fr) * 1998-04-22 2000-06-16 Fowa Dispositif ralentisseur monte dans le circuit d'echappement des gaz d'un vehicule equipe d'un moteur a combustion
US6662554B2 (en) 2002-01-23 2003-12-16 Deere & Company Adjustable restriction muffler system for a combine
JP2004011602A (ja) * 2002-06-11 2004-01-15 Aisan Ind Co Ltd 排気圧力制御弁
CA2453593C (fr) * 2003-12-16 2013-05-28 Jenara Enterprises Ltd. Frein sur echappement a limiteur de pression
US7350502B2 (en) * 2004-11-22 2008-04-01 Jacobs Vehicle Systems, Inc. Apparatus and method for controlling exhaust pressure
DE102008010658B4 (de) 2008-02-22 2010-08-19 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Abgasregelsystem und Abgasregelverfahren
US7735466B1 (en) * 2009-06-12 2010-06-15 Jacobs Vehicle Systems, Inc. Exhaust brake
CN102182564A (zh) * 2011-01-25 2011-09-14 浙江亿日气动科技有限公司 排气制动蝶阀的蝶片及其排气制动蝶阀
CN102182563A (zh) * 2011-01-25 2011-09-14 浙江亿日气动科技有限公司 限压密封活塞及其排气制动蝶阀
US11105233B2 (en) 2019-01-30 2021-08-31 Toyota Motor North America, Inc. Systems and methods for regulating performance characteristics of an exhaust system with a tri-modal valve

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2895571A (en) * 1955-02-25 1959-07-21 Dewandre Co Ltd C Exhaust braking apparatus for motor vehicles
DE1080813B (de) * 1955-11-16 1960-04-28 Richard Haller Motorbremse fuer Fahrzeuge mit Brennkraftmaschine
CH428318A (de) * 1965-12-28 1967-01-15 Haller Richard Motorbremse für Fahrzeuge mit Verbrennungskraftmaschine
US4111166A (en) * 1977-02-07 1978-09-05 Caterpillar Tractor Co. Engine mounted exhaust brake
DE2946747A1 (de) * 1979-11-20 1981-05-27 Daimler-Benz Ag, 7000 Stuttgart Motorbremse fuer kraftfahrzeuge
DE3211920A1 (de) * 1982-03-31 1983-10-13 Klöckner-Humboldt-Deutz AG, 5000 Köln Einrichtung an einer auspuffbremse
DE3430028A1 (de) * 1984-08-16 1986-02-27 Alfred 8573 Pottenstein Schmidt Einrichtung zur begrenzung des staudruckes einer auspuffmotorbremse
DE8424212U1 (de) * 1984-08-16 1984-12-13 Schmidt, Alfred, 8573 Pottenstein Auspuffmotorbremse

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19540060A1 (de) * 1995-10-27 1997-04-30 Daimler Benz Ag Motorbremsvorrichtung
US5839281A (en) * 1995-10-27 1998-11-24 Mercedes-Benz Ag Motor braking arrangement
CN102852654A (zh) * 2012-09-18 2013-01-02 浙江亿日气动科技有限公司 有凹面活塞套的限压泄气辅助制动阀装置
CN102852651A (zh) * 2012-09-18 2013-01-02 浙江亿日气动科技有限公司 之字形通道的限压泄气辅助制动阀装置
CN102852649A (zh) * 2012-09-18 2013-01-02 浙江亿日气动科技有限公司 有活塞挺杆的限压泄气辅助制动阀装置
CN102852648A (zh) * 2012-09-18 2013-01-02 浙江亿日气动科技有限公司 圆弧形泄压口的限压泄气辅助制动阀装置
CN102852651B (zh) * 2012-09-18 2016-02-03 浙江亿日气动科技有限公司 之字形通道的限压泄气辅助制动阀装置
CN102852654B (zh) * 2012-09-18 2016-04-06 浙江亿日气动科技有限公司 有凹面活塞套的限压泄气辅助制动阀装置
CN102852649B (zh) * 2012-09-18 2016-06-22 浙江亿日气动科技有限公司 有活塞挺杆的限压泄气辅助制动阀装置
CN102852648B (zh) * 2012-09-18 2017-02-01 浙江亿日气动科技有限公司 圆弧形泄压口的限压泄气辅助制动阀装置

Also Published As

Publication number Publication date
EP0215201A3 (fr) 1988-04-06
DE3533393A1 (de) 1987-03-26
ES2000333A6 (es) 1988-02-16
JPS6278439A (ja) 1987-04-10
US4750459A (en) 1988-06-14

Similar Documents

Publication Publication Date Title
EP0215201A2 (fr) Limitation de la pression dynamique avec soupape de sécurité
EP0175070B1 (fr) Dispositif pour limiter la pression dynamique dans un frein d'échappement
DE3147761C2 (de) Türschließer
DE2362422A1 (de) Selbsttaetig absperrende zapfpistole
DE2622096B2 (de) Ventil für ein Gasfeuerzeug
DE2816806C2 (de) Ventil
DE3110151A1 (de) Vorrichtung zum betaetigen eines heb- und senkbaren ventilkegels eines wannenablaufventils
DE3615688A1 (de) Laengenverstellbare gasfeder und betaetigungseinrichtung hierfuer
DE2213104A1 (de) Ventil für eine Flüssigkeitspumpe
EP0300081A2 (fr) Soupape
DE1750599B1 (de) Gasflaschen-Absperrventil mit selbsttaetiger Hilfsabsperrvorrichtung
DE3444927C2 (fr)
DE2439645C3 (de) Absperrschieber
DE2365679C3 (de) Durchfluflregelventil
CH631512A5 (de) Bremseinrichtung, insbesondere fuer tuerschliesser.
DE969784C (de) Klappenventil
DE8424212U1 (de) Auspuffmotorbremse
DE1750330A1 (de) Ventil mit rollenden Ventilkoerpern
DE1267009B (de) Hoechstdrehzahl-Geber
DE3445881C2 (fr)
DE2505873C3 (de) Druckregler
CH375962A (de) Ventil
DE2415826C3 (de) Mechanische Lösevorrichtung für Federspeicherbremszylinder
DE1303641C2 (de) Scharnier mit einer feststellvorrichtung in der offenstellung
DE1476117C (de) Stromungsbemessungs\ entil fur die Kurbeigehause Entlüftung

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

RBV Designated contracting states (corrected)

Designated state(s): AT BE CH FR GB IT LI LU NL SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH FR GB IT LI LU NL SE

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19881007