FR2512505A3 - Integral generator and vacuum pump for vehicle - uses integrally moulded casing and extended generator shaft to carry rotor vacuum pump - Google Patents

Integral generator and vacuum pump for vehicle - uses integrally moulded casing and extended generator shaft to carry rotor vacuum pump Download PDF

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Publication number
FR2512505A3
FR2512505A3 FR8215090A FR8215090A FR2512505A3 FR 2512505 A3 FR2512505 A3 FR 2512505A3 FR 8215090 A FR8215090 A FR 8215090A FR 8215090 A FR8215090 A FR 8215090A FR 2512505 A3 FR2512505 A3 FR 2512505A3
Authority
FR
France
Prior art keywords
vacuum pump
generator
shaft
rotor
vehicle
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
FR8215090A
Other languages
French (fr)
Other versions
FR2512505B3 (en
Inventor
Roland Ehmann
Friedhelm Meyer
Helmut Rembold
Walter Teegen
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of FR2512505A3 publication Critical patent/FR2512505A3/en
Application granted granted Critical
Publication of FR2512505B3 publication Critical patent/FR2512505B3/fr
Granted legal-status Critical Current

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Classifications

    • 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
    • F02B67/04—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 mechanically-driven auxiliary apparatus
    • 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
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
    • F01C21/10—Outer members for co-operation with rotary pistons; Casings
    • 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
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/30—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F04C18/34—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members
    • F04C18/344—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
    • 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
    • F04C25/00—Adaptations of pumps for special use of pumps for elastic fluids
    • F04C25/02—Adaptations of pumps for special use of pumps for elastic fluids for producing high vacuum
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Abstract

The casing of generator (1) and the generator shaft (5) is extended to form the shaft (6) for the vacuum pump. A seal (4) is fitted over the shaft between the vacuum pump rotor and the bearing (3) of the generator. An end plate (13) with underlying seals (15) is screwed in place onto the casing, fitted over the end of the vacuum pump rotor. The vacuum pump is of the vane type, with the enclosure (10) eccentric about the rotor axis. Ring seals are provided at the rotor ends to reduce leakage. The end of the shaft has a bevelled portion with which the pump rotor is joined. The cover of the device is moulded in one piece with a portion of an incorporated lifting ring.

Description

La présente invention concerne une pompe à vide assemblée avec une génératrice. Une telle pompe à vide est connue (demande de brevet de la
République fédérale d'Allemagne publiée sous le n 15 03 396).The present invention relates to a vacuum pump assembled with a generator. Such a vacuum pump is known (patent application of the
Federal Republic of Germany published under number 15 03 396).

Dans cette réalisation connue, l'enceinte à capacité variable de la pompe à vide se trouve dans un corps distinct, qui est fixé sur une poulie de la génératrice avec interposition d'une cloison. Une telle disposition présente l'inconvénient d'exiger suivant l'axe de la génératrice un vaste espace de montage, qui n'est toutefois pas disponible sur la plupart des véhicules. In this known embodiment, the variable capacity enclosure of the vacuum pump is located in a separate body, which is fixed to a pulley of the generator with the interposition of a partition. Such an arrangement has the disadvantage of requiring along the axis of the generator a large mounting space, which is however not available on most vehicles.

L'invention a pour objet une pompe à vide n'exigeant qu'un très faible espace de montage. Selon une caractéristique essentielle de l'invent ion, une partie importante du corps de la pompe à vide est moulée en une seule pièce avec la carcasse de la génératrice. Le nombre de joints d'étanchéité et de vis de fixation est en outre réduit par rapport à l'art antérieur. The invention relates to a vacuum pump requiring only a very small mounting space. According to an essential characteristic of the invention, a large part of the body of the vacuum pump is molded in one piece with the carcass of the generator. The number of seals and fixing screws is further reduced compared to the prior art.

D'autres caractéristiques et avantages de l'invention seront mieux compris à l'aide de la description détaillée ci-dessous d'un exemple de réalisation de la pompe, dont la figure unique représente la coupe. Other characteristics and advantages of the invention will be better understood with the aid of the detailed description below of an exemplary embodiment of the pump, the single figure of which represents the section.

Une génératrice 1 (dynamo) comporte une carcasse (2) dans une paroi latérale de laquelle sont disposés un roulement à billes 3 et un joint d'étanchéité 4. L'arbre 5 de la génératrice traverse le roulement 3 et le joint 4, et présente à son extrémité 6 des cannelures 7 sur lesquelles le rotor 8 d'une pompe à vide 9, comportant un évidement approprié, est solidarisé en rotation. A generator 1 (dynamo) comprises a carcass (2) in a side wall of which are arranged a ball bearing 3 and a seal 4. The shaft 5 of the generator crosses the bearing 3 and the seal 4, and has at its end 6 grooves 7 on which the rotor 8 of a vacuum pump 9, having a suitable recess, is secured in rotation.

La carcasse 2 de la génératrice 1 est réalisée de façon qu'une partie importante au moins du corps 10 de la pompe à vide 9 est moulée en une seule pièce sur elle. Un couvercle 11 et une partie 12 du corps à anneau de levage sont produits en une seule pièce avec la carcasse 2 de la génératrice. Seul un couvercle latéral 13 du corps 10 de la pompe est produit séparément, puis fixé sur le reste du corps 10 à l'aide de vis. L'étanchéite nécessaire est assurée par un joint 15 unique. The carcass 2 of the generator 1 is produced so that at least a substantial part of the body 10 of the vacuum pump 9 is molded in one piece on it. A cover 11 and a part 12 of the lifting ring body are produced in one piece with the carcass 2 of the generator. Only a side cover 13 of the body 10 of the pump is produced separately, then fixed to the rest of the body 10 using screws. The necessary seal is provided by a single seal 15.

Le rotor 8 est équipé d'ailettes non représentées, qui délimitent l'enceinte à volume variable 18 de la pompe à vide. The rotor 8 is equipped with fins, not shown, which delimit the variable-volume enclosure 18 of the vacuum pump.

On voit que l'intégration d'une partie importante du corps 10 de la pompe à la carcasse 2 de la génératrice 1 permet une construction très simple et économique. Un seul joint (bague 15) est nécessaire et quelques vis de fixation 14 suffisent, qui sont très simples à produire. We see that the integration of a large part of the body 10 of the pump to the carcass 2 of the generator 1 allows a very simple and economical construction. A single seal (ring 15) is necessary and a few fixing screws 14 are sufficient, which are very simple to produce.

La pompe à vide (9) est de préférence réalisée en pompe à ailettes pour l'alimentation d'amplificateurs d'effort de freinage à vide. The vacuum pump (9) is preferably made as a vane pump for supplying vacuum braking force amplifiers.

Bien entendu, diverses modifications peuvent être apportées par l'homme de-l'art au principe et aux dispositifs qui viennent d'être décrits uniquement à titre d'exemples non limitatifs, sans sortir du cadre de l'invention.  Of course, various modifications can be made by those skilled in the art to the principle and to the devices which have just been described only by way of nonlimiting examples, without departing from the scope of the invention.

Claims (3)

RevendicationsClaims 1. Pompe à vide assemblée avec une génératrice, caractérisée en ce qu'une partie importante au moins du corps (10) de la pompe à vide (9) est moulée en une seule pièce avec la carcasse (2) de génératrice (1).1. Vacuum pump assembled with a generator, characterized in that at least a significant part of the body (10) of the vacuum pump (9) is molded in one piece with the carcass (2) of the generator (1) . 2. Pompe à vide selon revendication 1, caractérisée en ce que le rotor (8) de préférence équipé d'ailettes, est monté sur l'extrémité (6) de l'arbre (5) en saillie sur la carcasse (2) de la génératrice et disposé en rotation dans la partie du corps (12) à anneau de levage de la pompe à vide (9); et la partie du corps (12) à anneau de levage et un couvercle (11) du corps (10) de pompe sont produits en une seule pièce avec la carcasse (2) de génératrice.2. Vacuum pump according to claim 1, characterized in that the rotor (8) preferably equipped with fins, is mounted on the end (6) of the shaft (5) projecting from the carcass (2) of the generator and disposed in rotation in the part of the body (12) of the lifting ring of the vacuum pump (9); and the part of the lifting ring body (12) and a cover (11) of the pump body (10) are produced in one piece with the generator casing (2). 3. Pompe à vide selon une des revendications 1 ou 2, caractérisée en ce que la pompe comporte un couvercle latéral (13), produit séparé- ment puis vissé sur le reste du corps (partie du corps 12 à anneau de levage). 3. Vacuum pump according to one of claims 1 or 2, characterized in that the pump comprises a side cover (13), produced separately and then screwed onto the rest of the body (part of the body 12 with lifting ring).
FR8215090A 1981-09-05 1982-09-03 Integral generator and vacuum pump for vehicle - uses integrally moulded casing and extended generator shaft to carry rotor vacuum pump Granted FR2512505A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19818125885U DE8125885U1 (en) 1981-09-05 1981-09-05 VACUUM PUMP ASSEMBLED WITH A GENERATOR

Publications (2)

Publication Number Publication Date
FR2512505A3 true FR2512505A3 (en) 1983-03-11
FR2512505B3 FR2512505B3 (en) 1983-08-05

Family

ID=6730944

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8215090A Granted FR2512505A3 (en) 1981-09-05 1982-09-03 Integral generator and vacuum pump for vehicle - uses integrally moulded casing and extended generator shaft to carry rotor vacuum pump

Country Status (3)

Country Link
JP (1) JPS5851295A (en)
DE (1) DE8125885U1 (en)
FR (1) FR2512505A3 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001094794A1 (en) * 2000-06-05 2001-12-13 Ford Global Technologies, Inc. Vehicle vacuum systems

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19937704A1 (en) 1999-08-10 2001-02-15 Continental Teves Ag & Co Ohg Vacuum pump unit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001094794A1 (en) * 2000-06-05 2001-12-13 Ford Global Technologies, Inc. Vehicle vacuum systems

Also Published As

Publication number Publication date
JPS5851295A (en) 1983-03-25
DE8125885U1 (en) 1983-02-17
FR2512505B3 (en) 1983-08-05

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