DE2821814A1 - SUCTION AIR SYSTEM FOR MOTOR VEHICLES - Google Patents

SUCTION AIR SYSTEM FOR MOTOR VEHICLES

Info

Publication number
DE2821814A1
DE2821814A1 DE19782821814 DE2821814A DE2821814A1 DE 2821814 A1 DE2821814 A1 DE 2821814A1 DE 19782821814 DE19782821814 DE 19782821814 DE 2821814 A DE2821814 A DE 2821814A DE 2821814 A1 DE2821814 A1 DE 2821814A1
Authority
DE
Germany
Prior art keywords
line
suction air
suction
jet pump
leading
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
DE19782821814
Other languages
German (de)
Other versions
DE2821814C2 (en
Inventor
Frank Dipl Ing Thoma
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.)
Daimler Benz AG
Original Assignee
Daimler Benz AG
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 Daimler Benz AG filed Critical Daimler Benz AG
Priority to DE2821814A priority Critical patent/DE2821814C2/en
Priority to IT48972/79A priority patent/IT1115996B/en
Priority to GB7916832A priority patent/GB2022036B/en
Priority to FR7912590A priority patent/FR2426171A1/en
Publication of DE2821814A1 publication Critical patent/DE2821814A1/en
Application granted granted Critical
Publication of DE2821814C2 publication Critical patent/DE2821814C2/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
    • B60T17/02—Arrangements of pumps or compressors, or control devices therefor
    • 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
    • F02B67/00—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for
    • F02B67/08—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for of non-mechanically driven auxiliary apparatus
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
    • F02M63/02—Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injector; Fuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectors; Fuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively
    • F02M63/0205—Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injector; Fuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectors; Fuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively for cutting-out pumps or injectors in case of abnormal operation of the engine or the injection apparatus, e.g. over-speed, break-down of fuel pumps or injectors ; for cutting-out pumps for stopping the engine
    • 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
    • F02B3/00—Engines characterised by air compression and subsequent fuel addition
    • F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Valves And Accessory Devices For Braking Systems (AREA)
  • Jet Pumps And Other Pumps (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)

Description

Daimler-Benz Aktiengesellschaft Daira 12 O51/4Daimler-Benz Aktiengesellschaft Daira 12 O51 / 4 Stuttgart-Untertürkheim 17· Mai 1978Stuttgart-Untertürkheim 17 May 1978

28218U28218U

"Saugluftanlage für Kraftfahrzeuge""Air suction system for motor vehicles"

Die Erfindung bezieht sich auf eine Saugluftanlage für Kraftfahrzeuge, die eine von der als Dieselmaschine ausgebildeten Antriebsbrennkraftmaschine des Kraftfahrzeuges angetriebene Saugluftpumpe und ein zu mit Saugluft betätigten Aggregaten führendes Leitungssystem mit eingeschalteten Rückschlagventilen und/oder Drosseln umfaßt.The invention relates to a suction air system for motor vehicles, one of which is designed as a diesel engine Internal combustion engine of the motor vehicle driven suction air pump and a unit operated with suction air includes leading line system with non-return valves and / or throttles switched on.

Insbesondere bei Dieselbrennkraftmaschinen ist es wegen des geringen Saugrohr-Unterdruckes erforderlich, die zum Betätigen einiger Aggregate, z.B. der Fahrzeugbremsen, der Abstellvorrichtung an der Einspritzpumpe od.dgl., erforderliche Saugluft mittels einer besonderen Saugluftpumpe zu erzeugen, die von der Brennkraftmaschine angetrieben wird. Da bei Dieaelbrennkraftmaschinen die Möglichkeit eines Rückwärtsanlaufens besteht, wird in diesem Fall je nach Bauart der Saugluftpumpe keine Saugluft, sondern Druckluft erzeugt, so daß es zu Fehlfunktionen der Saugluftverbraucher kommt.In particular with diesel internal combustion engines, it is because of the low intake manifold vacuum required to operate some units, e.g. the vehicle brakes, the parking device on the injection pump or the like To generate suction air by means of a special suction air pump, which is driven by the internal combustion engine. Because with Dieael internal combustion engines the possibility of reverse starting exists, in this case depending on the design of the suction air pump no suction air, but compressed air is generated, so that the suction air consumer malfunctions.

Der Erfindung liegt die Aufgabe zugrunde, die geschilderten Nachteile beim Rückwärtslauf der Brennkraftmaschine zu beheben.The invention is based on the object of eliminating the disadvantages outlined when the internal combustion engine is running in reverse.

Erfindungegemäß wird die gestellte Aufgabe dadurch gelöst, daß in das Leitungssystem an der Saugseite der Saugluftpunpe eine Strahlpumpe mit Rückschlagventil ai Auslaß derart ein-According to the invention, the problem posed is achieved by that in the line system on the suction side of the suction air pump a jet pump with non-return valve ai outlet

909847/0352909847/0352

- 3 - Daim 12 051/4- 3 - Daim 12 051/4

geschaltet ist, daß bei Erzeugung von Druckluft anstelle von Saugluft die Druckluft mittels der Strahlpumpe in dem zu den Aggregaten oder zu einem bevorzugt mit Saugluft zu bedienenden Aggregat führenden Leitungssystem Saugluft erzeugt .is switched that when generating compressed air instead from suction air to the compressed air by means of the jet pump in the to the units or to a preferably with suction air operating unit leading line system generates suction air.

Durch die Erfindung wird vorteilhaft erreicht, daß trotz Rückwärtslaufes der Brennkraftmaschine wichtige Aggregate funktionsfähig bleiben, so daß z.B. gebremst und die Brennkraftmaschine abgestellt werden kann.The invention advantageously ensures that, despite the internal combustion engine running in reverse, important assemblies remain functional, so that, for example, the brakes can be applied and the internal combustion engine can be switched off.

In Ausgestaltung des Erfindungegegenstandes kann die zum Einlaß der Strahlpumpe führende Leitung und die an die Snugetelle der Strahlpumpe angeschlossene Leitung durch eine mit einem Rückschlagventil versehene Leitung miteinander verbunden sein. Diese Anordnung empfiehlt sich dann, wenn die an der Saugstelle der Strahlpumpe mündende Leitung oder die Saugstelle selbst einen verhältnismäßig kleinen Cuerschnitt aufweisen.In an embodiment of the subject matter of the invention, the for Inlet of the jet pump leading line and the line connected to the Snugetelle of the jet pump through a line provided with a check valve can be connected to one another. This arrangement is recommended if the line opening out at the suction point of the jet pump or the suction point itself is a relatively small one Have Cu section.

Die Saugstelle der Strahlpumpe kann weiterhin mit einem bevorzugten Aggregat, z.B. mit der Abstellvorrichtung für die Kraftstoff-Einspritzpumpe, unter Einschaltung einer Drossel verbunden sein und das zu den übrigen Aggregaten führende Leitungssystem kann unter Einschaltung eines Rückschlagventil·· an die zum Einlaß der Strahlpumpe führende Leitung angeschlossen sein.The suction point of the jet pump can also be connected to a preferred unit, e.g. the storage device for the Fuel injection pump, with activation of a throttle be connected and the line system leading to the other units can be connected to the line leading to the inlet of the jet pump with the activation of a check valve be connected.

Wenn man als bevorzugtes Aggregat die Abstellvorrichtung für die Kraftstoff-Einspritzpumpe ansieht und davon ausgeht, daß ein Rückwärtslauf der Brennkraftmaschine nur bei stehendem Fahrzeug auftritt und die Fahrzeugbremse nicht benötigt wird, ist es Möglich, durch Betrieb der Abstellvorrichtung die Brennkraftmaschine sogleich abzustellen. Dadurch werden Lager-If you look at the storage device for the fuel injection pump as the preferred unit and assume that reverse running of the internal combustion engine only occurs when the vehicle is stationary and the vehicle brake is not required, it is possible to shut down the internal combustion engine immediately by operating the shutdown device. This means that storage

909347/0352909347/0352

- u - Daira 12 051/4- u - Daira 12 051/4

schaden vermieden, die dann auftreten, wenn die mit der Brennkraftmaschine rückwärts laufende Ölpumpe Öl aus den Lagern saugen würde.Avoid damage that occurs when dealing with the Internal combustion engine backward running oil pump oil from the Storage would suck.

In der Zeichnung ist der Gegenstand der Erfindung in drei Außführungsbeispielen schematisch dargestellt.In the drawing, the subject of the invention is in three Exemplary embodiments shown schematically.

Nach Fig. 1 ist eine von einer Diesel-Brennkraftmaschine angetriebene Saugluftpumpe 1 zur Erzeugung von Saugluft durch eine Leitung 2 mit einer unterdruckverstärkten Bremsanlage 3 verbunden. Ein Rückschlagventil 4 in der Leitung 2 vor der Bremsanlage 3 dient zur Absicherung der Bremsanlage. Von der Leitung 2 zweigt zwischen der Saugluftpumpe 1 und dem Rückschlagventil 4 eine Leitung 5 ab, die sich in den Leitungen 6, 7 fortsetzt. Die Leitung 6 führt zu einer Abstellvorrichtung 8 für die Kraftstoff-Einspritzpumpe der Brennkraftmaschine und die Leitung 7 führt zu einem sonstigen Aggregat 9, das mit Saugluft betrieben wird. In der Leitung 5 ist eine Drossel 10 angeordnet. Sie dient zur Absicherung der Bremsanlage gegen Leckstellen an den Aggregaten 8 und 9«According to Fig. 1, a suction air pump 1 driven by a diesel internal combustion engine for generating suction air is through a line 2 is connected to a vacuum-boosted brake system 3. A check valve 4 in line 2 before the Brake system 3 is used to protect the brake system. from the line 2 branches between the suction air pump 1 and the Check valve 4 from a line 5, which continues in lines 6, 7. The line 6 leads to a shut-off device 8 for the fuel injection pump of the internal combustion engine and the line 7 leads to another unit 9, which is operated with suction air. In line 5 is one Throttle 10 arranged. It is used to protect the brake system against leaks on units 8 and 9 «

Um zu erreichen, daß bei einem RUckwärtslauf der Brennkraftmaschine und damit der Saugluftpumpe 1 trotzdem keine Druckluft, sondern Saugluft zu den Aggregaten 3i 8 und 9 gelangt, ist in die Leitung 2 eine Strahlpumpe 11 eingeschaltet« derart, daß der Einlaß 12 der Strahlpumpe 11 mit der Saugluftpumpe 1 und die Saugstelle 13 Bit dem zu den Aggregaten führenden Teil der Leitung 2 verbunden ist. An den Auslaß l4 ist eine Leitung 15 mit einem Rückschlagventil l6 angeschloasen.In order to ensure that when the internal combustion engine and thus the suction air pump 1 run backwards, no compressed air but suction air reaches the units 3i 8 and 9, a jet pump 11 is switched on in line 2 in such a way that the inlet 12 of the jet pump 11 is connected to the suction air pump 1 and the suction point 13 is connected to the part of the line 2 leading to the units. At the outlet l4 is a line 15 with a check valve l6 is connected.

Bei normalem Betrieb der Saugluftpumpe 1 ist die Strahlpumpe 11 nicht in Betrieb. Sie wirkt bei geschlossenem Rückschlagventil 16 lediglich als ein Stück Verbindungsleitung in der Leitung 2. Venn dagegen die Saugluftpumpe 1 rückwärt«lauftf During normal operation of the suction air pump 1, the jet pump 11 is not in operation. When the non-return valve 16 is closed, it only acts as a piece of connecting line in line 2. When, on the other hand, the suction air pump 1 runs backwards f

909847/0352909847/0352

- 5 - Daim 12 051/4- 5 - Daim 12 051/4

saugt die erzeugte Druckluft in der Strahlpumpe 11 an der Saugstelle 13 Luft aus dem zu den Aggregaten 3, 8 und 9 führenden Teil der Leitung 2, so daß für die Aggregate Saugluft zur Verfügung steht. Durch die Leitung 15 und über das Rückschlagventil l6 gelangt die Druckluft ins Freie.The compressed air generated in the jet pump 11 sucks air out of the air to the units 3, 8 and 9 at the suction point 13 leading part of the line 2, so that suction air is available for the units. Through the line 15 and The compressed air is released into the open via the check valve l6.

Das Ausführungsbeispiel nach Fig. 2 entspricht in seinem Aufbau dem nach Fig. 1 bis auf den Umstand, daß der von der Saugluftpumpe 1 zu dem Einlaß 12 der Strahlpumpe 11 führende Teil der Leitung 2 mit dem an die Saugstelle 13 angeschlossenen Teil der Leitung 2 durch eine Leitung 17 verbunden ist, in die ein Rückschlagventil l8 eingeschaltet ist. Diese Ausbildung ist dann von Vorteil, wenn die Saugstelle 13 oder der an diese angeschlossene Teil der Leitung 2 einen verhältnismäßig geringen Ouerschnitt aufweisen sollten.The embodiment of FIG. 2 corresponds in his Structure according to FIG. 1 except for the fact that the one leading from the suction air pump 1 to the inlet 12 of the jet pump 11 Part of the line 2 is connected to the part of the line 2 connected to the suction point 13 by a line 17, in which a check valve l8 is switched on. This training is advantageous if the suction point 13 or the part of the line 2 connected to this should have a relatively small cross section.

Bei dem Ausführungsbeispiel nach Fig. 3 iet der Einlaß 12 der Strahlpumpe 11 mittels einer Leitung 19 an die Leitung 2 angeschlossen, während an die Saugstelle 13 mittels einer Leitung 20 mit zwischengeschalteter Drossel 21 die Abstellvorrichtung 8 angeschlossen ist. Zwischen der Anschlußstelle der Leitung 19 an der Leitung 2 und der Abzweigung der Leitung von der Leitung 2 ist ein Rückschlagventil 22 angeordnet.In the embodiment of FIG. 3, the inlet 12 is the The jet pump 11 is connected to the line 2 by means of a line 19, while the shut-off device 8 is connected to the suction point 13 by means of a line 20 with an interposed throttle 21. Between the junction of the Line 19 on line 2 and the branch of the line from line 2, a check valve 22 is arranged.

Bei Rückwärtslauf der Saugluftpumpe 1 und damit bei Betrieb der Strahlpumpe 11 wird allein die Abstellvorrichtung 8 mit Saugluft versorgt. Die übrigen Aggregate 3» 9 bleiben bei geschlossenem Rückschlagventil von der Versorgung mit Saugluft abgesperrt.When the suction air pump 1 is running backwards and thus during operation of the jet pump 11, only the parking device 8 is supplied with suction air. The other units 3 »9 remain the same closed non-return valve shut off from the supply of suction air.

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Claims (3)

Daimler-Benz Aktiffngefil] .schaft Daim 12 051/4Daimler-Benz Aktifngefil] .shaft Daim 12 051/4 Stuttgart-Untertürkheim 17- Mai 1978Stuttgart-Untertürkheim May 17, 1978 28218U28218U PatentansprücheClaims Ii Saugluftanlage für Kraftfahrzeuge, die eine von der als Dieselmaschine ausgebildeten Antriebsbrennkraftmaschine des Kraftfahrzeuges angetriebenen Snugluftpurape und ein zu mit Saugluft betätigten Aggregaten führendes Leitungssystem mit eingeschalteten Rückschlagventilen und/oder Drosseln umfaßt, dadurch gekennzeic hn e t, daß in das Leitungssystem an der Saugseite der Saugluftpumpe (l) eine Strahlpumpe (H) mit Rückschlagventil (16) vom Auslaß derart eingeschaltet ist, daß bei Erzeugung von Druckluft anstelle von Saugluft die Druckluft mittels der Strahlpumpe in dem zu den Aggregaten (3» 8, 9) oder zu einem bevorzugt mit Saugluft zu bedienenden Aggregat (8) führenden Leitungssystem Saugluft erzeugt, Ii suction air system for motor vehicles, which comprises a suction air purape driven by the internal combustion engine of the motor vehicle, which is designed as a diesel engine, and a line system leading to units actuated with suction air and with activated non-return valves and / or throttles, characterized in that in the line system on the suction side of the suction air pump ( l) a jet pump (H) with a non-return valve (16) is switched on from the outlet in such a way that when compressed air is generated instead of suction air, the compressed air by means of the jet pump in the to the units (3 »8, 9) or to one, preferably with suction air operating unit (8) leading line system generates suction air, 2. Anlage nach Anspruch 1, dadurch gekennzeichnet, daß die zum Einlaß der Strahlpumpe führende Leitung und die an die Saugstelle der Strahlpumpe angeschlossene Leitung durch eine mit einem Rückschlagventil (l8) versehene Leitung (17) miteinander verbunden sind.2. Plant according to claim 1, characterized in that that the line leading to the inlet of the jet pump and that to the suction point of the jet pump connected line connected to one another by a line (17) provided with a check valve (l8) are. 3. Anlage nach Anspruch 1, dadurch gekennzeichnet, daß die Saugstelle (13) der Strahlpumpe (11) mit einem bevorzugten Aggregat (8), z.B. mit der Abstellvorrichtung für die Kraftstoff-Einspritzpumpe, unter Einschaltung einer Drossel verbunden ist und das zu den übrigen Aggregaten führende Leitungssystem unter Einschaltung eines Rückschlagventiles (22) an die zum Einlaß der Strahlpumpe führende Leitung angeschlossen ist.3. Plant according to claim 1, characterized in that that the suction point (13) of the jet pump (11) with a preferred unit (8), e.g. with the storage device for the fuel injection pump, with the switching on of a throttle, and that to the other units leading line system with the activation of a check valve (22) to the inlet of the Jet pump leading line is connected. 909847/0352909847/0352
DE2821814A 1978-05-19 1978-05-19 Air suction system for motor vehicles Expired DE2821814C2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE2821814A DE2821814C2 (en) 1978-05-19 1978-05-19 Air suction system for motor vehicles
IT48972/79A IT1115996B (en) 1978-05-19 1979-05-08 IMPROVEMENT IN SUCTION SYSTEMS FOR MOTOR VEHICLES WITH DIESEL ENGINES
GB7916832A GB2022036B (en) 1978-05-19 1979-05-15 Vacuum installation for a motor vehivle
FR7912590A FR2426171A1 (en) 1978-05-19 1979-05-17 SUCTION AIR SYSTEM FOR VEHICLES

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2821814A DE2821814C2 (en) 1978-05-19 1978-05-19 Air suction system for motor vehicles

Publications (2)

Publication Number Publication Date
DE2821814A1 true DE2821814A1 (en) 1979-11-22
DE2821814C2 DE2821814C2 (en) 1986-10-16

Family

ID=6039680

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2821814A Expired DE2821814C2 (en) 1978-05-19 1978-05-19 Air suction system for motor vehicles

Country Status (4)

Country Link
DE (1) DE2821814C2 (en)
FR (1) FR2426171A1 (en)
GB (1) GB2022036B (en)
IT (1) IT1115996B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0602626A2 (en) * 1992-12-16 1994-06-22 Sony Magnescale Incorporation System for feeding tape
WO2010000694A2 (en) 2008-07-01 2010-01-07 Joma-Polytec Kunststofftechnik Gmbh Device for producing and providing a vacuum, and ventilation valve
CN108973963A (en) * 2018-07-23 2018-12-11 四川江淮汽车有限公司 A kind of the Motorized vacuum pump control system and method for electric car

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3369286D1 (en) * 1983-01-25 1987-02-26 Bendix Italia Fluid distribution circuit in a vacuum system for motor vehicles
DE3721611A1 (en) * 1987-06-30 1989-01-19 Alcatel Hochvakuumtechnik Gmbh MECHANICAL VACUUM PUMP WITH A SPRING-LOADED CHECK VALVE

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2112804B2 (en) * 1971-03-17 1973-02-22 Adam Opel AG, 6090 Russeisheim CONTROL DEVICE FOR AN INDEPENDENT SHIFTING GEARBOX IN MOTOR VEHICLES

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1853838A (en) * 1928-10-26 1932-04-12 Ernest M White Pressure increasing device
US2949732A (en) * 1957-09-30 1960-08-23 Allis Chalmers Mfg Co Vacuum control for fuel injection engines
FR1341900A (en) * 1962-12-19 1963-11-02 Chicago Bridge & Iron Co Improvements to devices intended to create a vacuum in an enclosure or a container
DE2557022C2 (en) * 1975-12-18 1983-08-11 Vdo Adolf Schindling Ag, 6000 Frankfurt Vacuum system
DE2727153A1 (en) * 1977-06-16 1978-12-21 Daimler Benz Ag Pipe connector for vehicle vacuum assisted brakes - has restrictor integral with nozzle and expanded housing for non-return valves

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2112804B2 (en) * 1971-03-17 1973-02-22 Adam Opel AG, 6090 Russeisheim CONTROL DEVICE FOR AN INDEPENDENT SHIFTING GEARBOX IN MOTOR VEHICLES

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0602626A2 (en) * 1992-12-16 1994-06-22 Sony Magnescale Incorporation System for feeding tape
EP0602626A3 (en) * 1992-12-16 1994-08-10 Sony Magnescale Incorporation System for feeding tape
WO2010000694A2 (en) 2008-07-01 2010-01-07 Joma-Polytec Kunststofftechnik Gmbh Device for producing and providing a vacuum, and ventilation valve
CN108973963A (en) * 2018-07-23 2018-12-11 四川江淮汽车有限公司 A kind of the Motorized vacuum pump control system and method for electric car

Also Published As

Publication number Publication date
FR2426171B1 (en) 1982-12-03
DE2821814C2 (en) 1986-10-16
IT7948972A0 (en) 1979-05-08
IT1115996B (en) 1986-02-10
FR2426171A1 (en) 1979-12-14
GB2022036A (en) 1979-12-12
GB2022036B (en) 1982-12-08

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