EP0702143A1 - Fuel pump for a motor vehicle - Google Patents
Fuel pump for a motor vehicle Download PDFInfo
- Publication number
- EP0702143A1 EP0702143A1 EP95112200A EP95112200A EP0702143A1 EP 0702143 A1 EP0702143 A1 EP 0702143A1 EP 95112200 A EP95112200 A EP 95112200A EP 95112200 A EP95112200 A EP 95112200A EP 0702143 A1 EP0702143 A1 EP 0702143A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pump
- pump unit
- fuel pump
- fuel
- unit
- 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
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C14/00—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
- F04C14/28—Safety arrangements; Monitoring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C11/00—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations
- F04C11/001—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations of similar working principle
Definitions
- the invention relates to a fuel pump for a motor vehicle.
- Known fuel pumps have hitherto been installed as separate pump devices in inaccessible places, for example above the engine block in the area of the injection system, and require their own drive with corresponding bearing devices, which has proven to be cost-intensive.
- Known fuel pumps prove to be disadvantageous during maintenance and repair, since parts blocking access to the fuel pump, such as lines, turbochargers, etc., must be removed before the fuel pump can be dismantled.
- the invention is therefore based on the object of providing a fuel pump for a motor vehicle which can be manufactured more cost-effectively and can be attached more easily in the engine compartment than known fuel pumps.
- the fuel pump is formed by a pump unit of a multiple pump.
- the fuel pump according to the invention has the advantage that it does not require its own drive, but can be driven by the drive system of the multiple pump. As a result, the fuel pump can also be produced in a more economical manner than known fuel pumps. Integration in a multiple pump system also reduces the size of the fuel pump, which is advantageous with regard to the problem of housing in the engine compartment.
- the further pump units within the multiple pump can in principle be designed in any manner and for the transmission of any power. However, since very large drive powers are not required for fuel delivery, it proves to be advantageous for the further pump unit to transmit a greater power and the fuel pump unit is designed to transmit less power.
- a pump unit of the multiple pump as a delivery unit for a power steering system with a correspondingly high delivery rate.
- the fuel pump unit can then be driven by the drive of this pump unit; the drive shaft in the area of the fuel pump can be designed to be weaker in accordance with the required drive power than in the area of the first pump unit.
- the fuel pump unit comprises a double-stroke pump. With such a pump, the occurrence of transverse forces on the shaft can be prevented. It is therefore also possible, for example, to design the mounting of the drive shaft within the fuel pump unit at low cost. In this regard, it has proven to be advantageous to design the fuel pump such that a rotor of the fuel pump unit of the multiple pump is held so that it can be driven by a free-floating shaft journal of the drive shaft.
- the pump units of the multiple pump can be connected and driven by drive shaft sections that can be coupled together. Especially at a fuel pump unit in which the transverse forces cancel each other out, it has proven to be advantageous that a clutchless common shaft is provided for driving the fuel pump unit and the other pump units, since a clutchless drive can be produced more cost-effectively.
- Vane cell or roller cell pumps are particularly preferably used for the fuel pump unit, since the sealing elements of these pumps, vanes or rollers, automatically compensate for wear in the direction of the cam ring.
- Another advantage of the vane or roller cell pump * n can be seen in the fact that an "empty" line can be refilled from the suction side without having to provide separate check valves as with other pump types.
- cam ring with a hard metal coating, for example chrome nitrite or titanium nitrite.
- the fuel pump also serves as a pressure plate for the further pump unit of the multiple pump.
- the shaft bearing of the fuel pump unit is lubricated by the pumping medium of the further pump unit.
- the shaft bearing does not run in Fuel and therefore has less wear.
- the further pump unit is assigned, for example, to a power steering system, the shaft bearing of the fuel pump unit is lubricated by the steering oil of the power steering system. This is less expensive than providing sealed and self-lubricated bearings in a fuel pump.
- the figure shows a multiple pump, designated overall by reference number 2.
- the multiple pump 2 comprises a pump unit 4 serving as a fuel pump and a further pump unit 6 designed as an auxiliary steering pump.
- the fuel pump unit 4 and the auxiliary steering pump unit 6 are driven by a common drive shaft 8.
- the drive shaft 8 comprises a shaft section 10 assigned to the power steering pump unit 6 and a shaft section 12 assigned to the fuel pump unit 4 with a smaller shaft cross section than the shaft section 10.
- the drive shaft 10 is rotatably supported by means of a bearing 14 within the power steering pump unit 6 and by means of a bearing 16 within the fuel pump unit 4.
- the power steering pump unit 6 is designed as a vane pump and comprises a rotor 18, which is drivably held on the shaft section 10, and a lifting ring 20.
- the vane cells of the rotor 18 are connected via a channel 22 to an annular space 24 which is supplied with the delivery pressure, as a result of which the extension and retraction movement the wing-supporting under-wing pump is formed.
- the suction side of the vane pump is formed by an annular space 26, which in turn is limited by the fuel pump unit 4, which serves as a pressure plate 28 of the rotor 18.
- the delivery side 30 of the vane pump is connected to the power steering system of the motor vehicle in a manner not shown.
- the delivery side 30 is connected to a control piston 34 by a control valve, generally designated by the reference numeral 32.
- a control valve generally designated by the reference numeral 32.
- the control piston 34 is displaced to the right against a spring force in the figure, so that the high-pressure side 30 is connected in a manner known per se to the suction side of the vane pump is.
- a charging bore 36 is provided which is connected to the tank and through which hydraulic fluid is conveyed from the tank to the suction side at high speeds, thereby preventing cavitation within the fluid.
- the slide bearing 16 arranged in the transport pump unit is lubricated by means of hydraulic oil from the power steering pump unit by means of a leak oil channel 38.
- the plain bearing 16 thus does not run in the fuel of the fuel pump unit 4, which would only have an unsatisfactory lubricating effect.
- the shaft section 12 of the drive shaft 8 comprises an end region in the form of a free-floating shaft journal 40, on which a rotor 42 of the fuel pump unit 4, which is also designed as a vane pump, is drivably mounted.
- the fuel pump unit 4 further comprises a cam ring 44 and two pressure plates 45 and 46 for the cam ring 44 and the rotor 42.
- the delivery side 48 of the vane pump is connected to an injection system of the motor vehicle by means of a pressure line 50. Pressures of around 6 bar are available here; the drive shaft 8 therefore transmits a significantly lower power to the vane pump of the fuel pump unit 4 than is the case with the power steering pump unit 6.
- the suction side of the multi-stroke vane pump is formed by two kidney-shaped openings 52 connected to the tank, into which a leak oil hole 54 also opens, which connects the shaft section with one 12 partially surrounding gap-shaped space 56 is connected.
- a pressure line 58 to the under-wing pump is also provided in the fuel pump unit.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
Abstract
Description
Die Erfindung betrifft eine Kraftstoffpumpe für ein Kraftfahrzeug.The invention relates to a fuel pump for a motor vehicle.
Bekannte Kraftstoffpumpen sind bisher als separate Pumpenvorrichtungen an unzugänglichen Stellen, etwa oberhalb des Motorblocks im Bereich des Einspritzsystems, eingebaut und benötigen einen eigenen Antrieb mit entsprechenden Lagervorrichtungen, was sich als kostenintensiv erweist. Bekannte Kraftstoffpumpen erweisen sich bei der Wartung und Reparatur als nachteilig, da den Zugang zu der Kraftstoffpumpe versperrende Teile, wie zum Beispiel Leitungen, Turbolader etc., entfernt werden müssen, bevor die Kraftstoffpumpe demontiert werden kann.Known fuel pumps have hitherto been installed as separate pump devices in inaccessible places, for example above the engine block in the area of the injection system, and require their own drive with corresponding bearing devices, which has proven to be cost-intensive. Known fuel pumps prove to be disadvantageous during maintenance and repair, since parts blocking access to the fuel pump, such as lines, turbochargers, etc., must be removed before the fuel pump can be dismantled.
Der Erfindung liegt daher die Aufgabe zugrunde, eine Kraftstoffpumpe für ein Kraftfahrzeug zu schaffen, die kostengünstiger herstellbar und besser zugänglich im Motorraum anbringbar ist als bekannte Kraftstoffpumpen.The invention is therefore based on the object of providing a fuel pump for a motor vehicle which can be manufactured more cost-effectively and can be attached more easily in the engine compartment than known fuel pumps.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß die Kraftstoffpumpe von einer Pumpeneinheit einer Mehrfachpumpe gebildet ist.This object is achieved in that the fuel pump is formed by a pump unit of a multiple pump.
Die Verwendung von Mehrfachpumpen bei Kraftfahrzeugen ist an sich bekannt, so zum Beispiel die Kombination einer Flügelzellenpumpe als Teil eines Lenkhilfsystems mit einer Radialkolbenpumpe für die Niveauregelung. Weiter ist die Kombination zweier Flügelzellenpumpen innerhalb einer Mehrfachpumpe für ein Vorder- und Hinterachslenksystem oder für ein Lenksystem und einen hydraulischen Lüfterantrieb bekannt.The use of multiple pumps in motor vehicles is known per se, for example the combination of a vane pump as part of a power steering system with a radial piston pump for level control. The combination of two vane pumps within a multiple pump for a front and rear axle steering system or for a steering system and a hydraulic fan drive is also known.
Die erfindungsgemäße Kraftstoffpumpe hat den Vorteil, daß sie keinen eigenen Antrieb benötigt, sondern von dem Antriebssystem der Mehrfachpumpe antreibbar ist. Hierdurch ist die Kraftstoffpumpe aber auch auf wirtschaflichere Weise herstellbar als bekannte Kraftstoffpumpen. Durch Integration in ein Mehrfachpumpensystem verringert sich auch die Baugröße der Kraftstoffpumpe, was hinsichtlich des Unterbringungsproblems im Motorraum vorteilhaft ist.The fuel pump according to the invention has the advantage that it does not require its own drive, but can be driven by the drive system of the multiple pump. As a result, the fuel pump can also be produced in a more economical manner than known fuel pumps. Integration in a multiple pump system also reduces the size of the fuel pump, which is advantageous with regard to the problem of housing in the engine compartment.
Die weiteren Pumpeneinheiten innerhalb der Mehrfachpumpe können grundsätzlich in beliebiger Weise und zur Übertragung beliebiger Leistungen ausgebildet sein. Da jedoch zur Kraftstoff-Förderung keine sehr großen Antriebsleistungen benötigt werden, erweist es sich als vorteilhaft, daß die weitere Pumpeneinheit zur Übertragung einer größeren Leistung und die Kraftstoffpumpeneinheit zur Übertragung einer geringeren Leistung ausgelegt ist. So ist es zum Beispiel denkbar und vorteilhaft, eine Pumpeneinheit der Mehrfachpumpe als Fördereinheit für ein Lenkhilfsystem mit entsprechend großer Förderleistung auszubilden. Die Kraftstoffpumpeneinheit ist dann durch den Antrieb dieser Pumpeneinheit antreibbar, die Antriebswelle im Bereich der Kraftstoffpumpe kann der geforderten Antriebsleistung entsprechend schwächer ausgebildet sein als im Bereich der ersten Pumpeneinheit. Es ist weiter denkbar, mehr als zwei Pumpeneinheiten innerhalb der Mehrfachpumpe vorzusehen; so wäre es zum Beispiel vorteilhaft, eine Kraftstoffpumpeneinheit mit einer Lenkhilfpumpeneinheit sowie mit einer Pumpeneinheit für ein Antiblockiersystem zu kombinieren.The further pump units within the multiple pump can in principle be designed in any manner and for the transmission of any power. However, since very large drive powers are not required for fuel delivery, it proves to be advantageous for the further pump unit to transmit a greater power and the fuel pump unit is designed to transmit less power. For example, it is conceivable and advantageous to design a pump unit of the multiple pump as a delivery unit for a power steering system with a correspondingly high delivery rate. The fuel pump unit can then be driven by the drive of this pump unit; the drive shaft in the area of the fuel pump can be designed to be weaker in accordance with the required drive power than in the area of the first pump unit. It is also conceivable to provide more than two pump units within the multiple pump; it would be advantageous, for example, to combine a fuel pump unit with a power steering pump unit and with a pump unit for an anti-lock braking system.
Als ganz besonders vorteilhaft hat es sich erwiesen, daß die Kraftstoffpumpeneinheit eine doppelhubige Pumpe umfaßt. Mit einer solchen Pumpe läßt sich das Auftreten von Querkräften an der Welle verhindern. Daher ist es zum Beispiel auch möglich, die Lagerung der Antriebswelle innerhalb der Kraftstoffpumpeneinheit kostengünstig auszubilden. Es hat sich diesbezüglich als vorteilhaft erwiesen, die Kraftstoffpumpe so auszubilden, daß ein Rotor der Kraftstoffpumpeneinheit der Mehrfachpumpe von einem frei fliegenden Wellenzapfen der Antriebswelle antreibbar gehalten ist.It has proven to be particularly advantageous that the fuel pump unit comprises a double-stroke pump. With such a pump, the occurrence of transverse forces on the shaft can be prevented. It is therefore also possible, for example, to design the mounting of the drive shaft within the fuel pump unit at low cost. In this regard, it has proven to be advantageous to design the fuel pump such that a rotor of the fuel pump unit of the multiple pump is held so that it can be driven by a free-floating shaft journal of the drive shaft.
Die Pumpeneinheiten der Mehrfachpumpe können durch miteinander kuppelbare Antriebswellenabschnitte verbunden und angetrieben werden. Insbesondere bei einer Kraftstoffpumpeneinheit, bei der sich die Querkräfte gegenseitig aufheben, hat es sich jedoch als vorteilhaft erwiesen, daß zum Antrieb der Kraftstoffpumpeneinheit und der weiteren Pumpeneinheiten eine kupplungslose gemeinsame Welle vorgesehen ist, da ein kupplungsloser Antrieb kostengünstiger herstellbar ist.The pump units of the multiple pump can be connected and driven by drive shaft sections that can be coupled together. Especially at a fuel pump unit in which the transverse forces cancel each other out, it has proven to be advantageous that a clutchless common shaft is provided for driving the fuel pump unit and the other pump units, since a clutchless drive can be produced more cost-effectively.
Besonders bevorzugt werden Flügelzellen- oder Rollenzellenpumpen für die Kraftstoffpumpeneinheit verwendet, da die Dichtelemente dieser Pumpen, Flügel bzw. Rollen, einen Verschleiß in Richtung des Hubrings selbsttätig ausgleichen. Ein weiterer Vorteil der Flügel- bzw. Rollenzellenpumpe*n ist darin zu sehen, daß eine "leergefahrene" Leitung von der Saugseite her wieder gefüllt werden kann, ohne daß separate Rückschlagventile wie bei anderen Pumpentypen vorgesehen werden müssen.Vane cell or roller cell pumps are particularly preferably used for the fuel pump unit, since the sealing elements of these pumps, vanes or rollers, automatically compensate for wear in the direction of the cam ring. Another advantage of the vane or roller cell pump * n can be seen in the fact that an "empty" line can be refilled from the suction side without having to provide separate check valves as with other pump types.
Um Reibung und Verschleiß gering zu halten werden Flügelzellenpumpen mit etwa 6 Flügeln bevorzugt. Insoweit erweist es sich auch als vorteilhaft, den Hubring mit einer Hartmetallbeschichtung, zum Beispiel Chrom-Nitrit oder Titan-Nitrit, auszubilden.To keep friction and wear low, vane pumps with about 6 vanes are preferred. In this respect, it has also proven to be advantageous to design the cam ring with a hard metal coating, for example chrome nitrite or titanium nitrite.
Es erweist sich weiter als vorteilhaft, daß die Kraftstoffpumpe zugleich als Druckplatte der weiteren Pumpeneinheit der Mehrfachpumpe dient.It also proves to be advantageous that the fuel pump also serves as a pressure plate for the further pump unit of the multiple pump.
Bei einer besonders vorteilhaften Kraftstoffpumpe ist das Wellenlager der Kraftstoffpumpeneinheit von dem Fördermedium der weiteren Pumpeneinheit geschmiert. Das Wellenlager läuft somit nicht im Kraftstoff und weist daher einen geringeren Verschleiß auf. Wenn die weitere Pumpeneinheit beispielsweise einem Lenkhilfsystem zugeordnet ist, so wird das Wellenlager der Kraftstoffpumpeneinheit von dem Lenköl des Lenkhilfsystems geschmiert. Dies ist kostengünstiger, als abgedichtete und eigengeschmierte Lager bei einer Kraftstoffpumpe vorzusehen.In a particularly advantageous fuel pump, the shaft bearing of the fuel pump unit is lubricated by the pumping medium of the further pump unit. The shaft bearing does not run in Fuel and therefore has less wear. If the further pump unit is assigned, for example, to a power steering system, the shaft bearing of the fuel pump unit is lubricated by the steering oil of the power steering system. This is less expensive than providing sealed and self-lubricated bearings in a fuel pump.
Weitere Vorteile, Merkmale und Einzelheiten der Erfindung ergeben sich aus der zeichnerischen Darstellung sowie der nachfolgenden Beschreibung einer vorteilhaften Ausführungsform der erfindungsgemäßen Kraftstoffpumpe.Further advantages, features and details of the invention result from the drawing and the following description of an advantageous embodiment of the fuel pump according to the invention.
In der Zeichnung zeigt
- die Figur:
- eine Schnittansicht einer erfindungsgemäßen Kraftstoffpumpe als Teil einer Mehrfachpumpeneinheit, wobei zwei um die Antriebswellenlängsachse gegeneinander verkippte Schnittebenen dargestellt sind.
- The figure:
- a sectional view of a fuel pump according to the invention as part of a multiple pump unit, wherein two sectional planes tilted against each other about the drive shaft longitudinal axis are shown.
Die Figur zeigt eine insgesamt mit dem Bezugszeichen 2 bezeichnete Mehrfachpumpe. Die Mehrfachpumpe 2 umfasst eine als Kraftstoffpumpe dienende Pumpeneinheit 4 und eine als Lenkhilfpumpe ausgebildete weitere Pumpeneinheit 6. Die Kraftstoffpumpeneinheit 4 und die Lenkhilfpumpeneinheit 6 sind von einer gemeinsamen Antriebswelle 8 angetrieben. Die Antriebswelle 8 umfaßt einen der Lenkhilfpumpeneinheit 6 zugeordneten Wellenabschnitt 10 und einen der Kraftstoffpumpeneinheit 4 zugeordneten Wellenabschnitt 12 mit einem geringeren Wellenguerschnitt als der Wellenabschnitt 10. Die Antriebswelle 10 ist mittels eines Lagers 14 innerhalb der Lenkhilfpumpeneinheit 6 und mittels eines Lagers 16 innerhalb der Kraftstoffpumpeneinheit 4 umdrehbar gelagert.The figure shows a multiple pump, designated overall by
Die Lenkhilfpumpeneinheit 6 ist als Flügelzellenpumpe ausgebildet und umfaßt einen auf dem Wellenabschnitt 10 antreibbar gehaltenen Rotor 18 und einen Hubring 20. Die Flügelzellen des Rotors 18 sind über einen Kanal 22 mit einem mit dem Förderdruck beaufschlagten Ringraum 24 verbunden, wodurch eine die Aus- und Einfahrbewegung der Flügel unterstützende Unterflügelpumpe gebildet ist. Die Ansaugseite der Flügelzellenpumpe ist von einem Ringraum 26 gebildet, der seinerseits von der Kraftstoffpumpeneinheit 4 begrenzt ist, die als Druckplatte 28 des Rotors 18 dient. Die Förderseite 30 der Flügelzellenpumpe ist auf nicht dargestellte weise mit dem Lenkhilfsystem des Kraftfahrzeugs verbunden. Weiter ist die Förderseite 30 mit einem insgesamt mit dem Bezugszeichen 32 bezeichneten Steuerventil mit einem Steuerkolben 34 verbunden. Bei grosser Geschwindigkeit des Kraftfahrzeugs und damit hoher Umdrehungszahl der Antriebswelle 10, was zu Drücken in der Größenordnung von 120 bar, bei Lastkraftwagen 150 bar, auf der Förderseite 30 führt, ist der Steuerkolben 34 gegen eine Federkraft in der Figur nach rechts verschoben, so daß die Hochdruckseite 30 in an sich bekannter Weise mit der Ansaugseite der Flügelzellenpumpe verbunden ist. Des weiteren ist eine mit dem Tank verbundene Aufladebohrung 36 vorgesehen, durch die bei hohen Geschwindigkeiten Hydraulikflüssigkeit vom Tank zur Ansaugseite gefördert wird, wodurch Kavitationsbildung innerhalb der Flüssigkeit verhindert wird.The power
Mittels eines Leckölkanals 38 wird das in der Transportpumpeneinheit angeordnete Gleitlager 16 mittels Hydrauliköl aus der Lenkhilfpumpeneinheit geschmiert. Das Gleitlager 16 läuft somit nicht im Kraftstoff der Kraftstoffpumpeneinheit 4, der nur eine unbefiedigende Schmierwirkung hätte.The slide bearing 16 arranged in the transport pump unit is lubricated by means of hydraulic oil from the power steering pump unit by means of a
Der Wellenabschnitt 12 der Antriebswelle 8 umfaßt einen Endbereich in Form eines freifliegenden Wellenzapfens 40, auf dem ein Rotor 42 der gleichfalls als Flügelzellenpumpe ausgebildeten Kraftstoffpumpeneinheit 4 antreibbar gelagert ist. Die Kraftstoffpumpeneinheit 4 umfaßt weiter einen Hubring 44 und zwei Druckplatten 45 und 46 für den Hubring 44 und den Rotor 42 Die Förderseite 48 der Flügelzellenpumpe ist mittels einer Druckleitung 50 mit einem Einspritzsystem des Kraftfahrzeugs verbunden. Hier stehen Drücke von etwa 6 bar zur Verfügung; es wird also von der Antriebswelle 8 eine wesentlich geringere Leistung auf die Flügelzellenpumpe der Kraftstoffpumpeneinheit 4 übertragen als dies bei der Lenkhilfpumpeneinheit 6 der Fall ist. Die Ansaugsseite der mehrhubigen Flügelzellenpumpe ist von zwei mit dem Tank verbundenen, nierenförmigen Öffnungen 52 gebildet, in die auch eine Leckölbohrung 54 mündet, die mit einem den Wellenabschnitt 12 teilweise umgebenden spaltförmigen Raum 56 verbunden ist.The
Zur Unterstützung des Ein- und Ausfahrens der Flügel des Rotors 42 ist auch bei der Kraftstoffpumpeneinheit eine Druckleitung 58 zur Unterflügelpumpe vorgesehen.To support the retraction and extension of the blades of the
Claims (9)
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4433010 | 1994-09-15 | ||
| DE4433010 | 1994-09-15 | ||
| DE4434244A DE4434244C2 (en) | 1994-09-15 | 1994-09-24 | Fuel pump for a motor vehicle |
| DE4434244 | 1994-09-24 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0702143A1 true EP0702143A1 (en) | 1996-03-20 |
| EP0702143B1 EP0702143B1 (en) | 1999-02-24 |
Family
ID=25940176
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19950112200 Expired - Lifetime EP0702143B1 (en) | 1994-09-15 | 1995-08-03 | Fuel pump for a motor vehicle |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP0702143B1 (en) |
| JP (1) | JP3875734B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010071497A1 (en) * | 2008-12-18 | 2010-06-24 | Volvo Lastvagnar Ab | Fuel pump arrangement and vehicle comprising a fuel pump arrangement |
| CN103047131A (en) * | 2013-01-25 | 2013-04-17 | 江铃汽车股份有限公司 | Double braking and steering pump |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1780217A (en) * | 1927-08-25 | 1930-11-04 | Wiltse Appliance Co | Pump mechanism |
| US2936774A (en) * | 1956-11-13 | 1960-05-17 | Holley Carburetor Co | Pump assembly with air cooled motor |
| US3196926A (en) * | 1962-05-28 | 1965-07-27 | Ford Motor Co | Fuel supply systems |
| DE2444799A1 (en) * | 1974-09-19 | 1976-04-08 | Volkswagenwerk Ag | Combined fuel lift pump and vacuum pump - has vacuum side with one way connection with induction manifold at slow speed |
| US4259044A (en) * | 1979-05-15 | 1981-03-31 | Trw Inc. | Fuel pump assembly |
| DE3122336A1 (en) * | 1980-06-06 | 1982-03-04 | Barmag Barmer Maschinenfabrik Ag, 5630 Remscheid | Unit comprising a vacuum air pump for brake boosting and a fuel feed pump in motor vehicles |
| FR2512888A1 (en) * | 1981-06-09 | 1983-03-18 | Siette Spa | Automobile brake servo pump and oil pump - are assembled with common drive mechanism using crank shaft and rocker |
| US4497618A (en) * | 1983-09-12 | 1985-02-05 | General Motors Corporation | Combined vacuum pump and power steering pump assembly |
| EP0178782A1 (en) * | 1984-10-05 | 1986-04-23 | General Motors Corporation | Tandem pump assembly |
| EP0284241A2 (en) * | 1987-03-21 | 1988-09-28 | LUCAS INDUSTRIES public limited company | Vane pump |
-
1995
- 1995-08-03 EP EP19950112200 patent/EP0702143B1/en not_active Expired - Lifetime
- 1995-09-11 JP JP23260795A patent/JP3875734B2/en not_active Expired - Fee Related
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1780217A (en) * | 1927-08-25 | 1930-11-04 | Wiltse Appliance Co | Pump mechanism |
| US2936774A (en) * | 1956-11-13 | 1960-05-17 | Holley Carburetor Co | Pump assembly with air cooled motor |
| US3196926A (en) * | 1962-05-28 | 1965-07-27 | Ford Motor Co | Fuel supply systems |
| DE2444799A1 (en) * | 1974-09-19 | 1976-04-08 | Volkswagenwerk Ag | Combined fuel lift pump and vacuum pump - has vacuum side with one way connection with induction manifold at slow speed |
| US4259044A (en) * | 1979-05-15 | 1981-03-31 | Trw Inc. | Fuel pump assembly |
| DE3122336A1 (en) * | 1980-06-06 | 1982-03-04 | Barmag Barmer Maschinenfabrik Ag, 5630 Remscheid | Unit comprising a vacuum air pump for brake boosting and a fuel feed pump in motor vehicles |
| FR2512888A1 (en) * | 1981-06-09 | 1983-03-18 | Siette Spa | Automobile brake servo pump and oil pump - are assembled with common drive mechanism using crank shaft and rocker |
| US4497618A (en) * | 1983-09-12 | 1985-02-05 | General Motors Corporation | Combined vacuum pump and power steering pump assembly |
| EP0178782A1 (en) * | 1984-10-05 | 1986-04-23 | General Motors Corporation | Tandem pump assembly |
| EP0284241A2 (en) * | 1987-03-21 | 1988-09-28 | LUCAS INDUSTRIES public limited company | Vane pump |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010071497A1 (en) * | 2008-12-18 | 2010-06-24 | Volvo Lastvagnar Ab | Fuel pump arrangement and vehicle comprising a fuel pump arrangement |
| CN103047131A (en) * | 2013-01-25 | 2013-04-17 | 江铃汽车股份有限公司 | Double braking and steering pump |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0702143B1 (en) | 1999-02-24 |
| JPH0893588A (en) | 1996-04-09 |
| JP3875734B2 (en) | 2007-01-31 |
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