EP1588054A1 - Pumpe - Google Patents
PumpeInfo
- Publication number
- EP1588054A1 EP1588054A1 EP04702662A EP04702662A EP1588054A1 EP 1588054 A1 EP1588054 A1 EP 1588054A1 EP 04702662 A EP04702662 A EP 04702662A EP 04702662 A EP04702662 A EP 04702662A EP 1588054 A1 EP1588054 A1 EP 1588054A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pump
- flange
- nozzle
- housing
- pump housing
- 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
Links
- 229910052751 metal Inorganic materials 0.000 claims abstract description 8
- 239000002184 metal Substances 0.000 claims abstract description 8
- 238000004026 adhesive bonding Methods 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 description 5
- 239000012528 membrane Substances 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical group [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/12—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
- F04C29/124—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet with inlet and outlet valves specially adapted for rotary or oscillating piston pumps
- F04C29/126—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet with inlet and outlet valves specially adapted for rotary or oscillating piston pumps of the non-return type
-
- 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
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
-
- 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
- F04C18/3441—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 the inner and outer member being in contact along one line or continuous surface substantially parallel to the axis of rotation
-
- 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
- F04C2220/00—Application
- F04C2220/10—Vacuum
-
- 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
- F04C2240/00—Components
- F04C2240/30—Casings or housings
Definitions
- the invention relates to a pump, in particular a vacuum pump for motor vehicles, with a pump flange and a pump housing, wherein the pump housing can be a pot-shaped sheet metal housing, with an intake port, which is connected to a suction chamber formed in a pump chamber and has a non-return valve which Prevents passage of a pressure medium through the intake manifold in one direction of flow.
- Such pumps are known. They usually have a die-cast housing, which requires a complex casting tool with a slide for the pump flange or pump housing due to the lateral position of the suction nozzle. With these pumps, the intake manifold is molded on the side.
- the disadvantages of such vacuum pumps are that the pump housings are relatively expensive and the intake port position has to be adapted to the installation conditions, so that the pump housing cannot be standardized.
- pumps with standardized pump housings e.g. deep-drawn sheet metal housings
- the intake port is not accommodated in the pump housing, but laterally in the pump flange.
- Such pumps have the disadvantages of a large axial overall height of the pump flange and thus of the pump, the nozzle position being inflexible in the axial direction.
- a pump in particular a vacuum pump for motor vehicles, with a pump flange and with a pump housing, it being possible for the pump housing to be a pot-shaped sheet metal housing, with an intake port which is connected to a suction chamber formed in a pump chamber and has a check valve, which prevents the passage of a pressure medium through the intake port in a flow direction, the intake port having a port connection and a port flange and being arranged as a separate component by means of a flange connection on the pump housing and / or pump flange and the longitudinal axis of the port connection having different angle and / or height positions in May have reference to the longitudinal axis of the nozzle flange.
- a pump according to the invention is characterized in that the check valve is arranged in the nozzle flange.
- the check valve can be arranged in the nozzle connection.
- a pump is preferred in which the intake port is connected to the pump chamber via a connecting channel.
- the connecting channel is arranged in the parting plane between the pump flange and the pump housing.
- a pump is preferred in which the connecting channel is formed by a depression which can be arranged in the pump flange and / or pump housing.
- the pump housing of a pump has a cutout at one end of the connecting duct, which serves as a connection between the intake manifold and the connecting duct.
- a pump is also preferred, in which the connecting piece of the suction connecting piece can be arranged straight or angled relative to the connecting piece flange.
- a pump according to the invention is characterized in that a seal is passed between the pump housing and the pump flange around the connecting channel.
- Another pump according to the invention is characterized in that the nozzle flange rests on the pump housing and is connected to the pump flange through the pump housing, for example by screws or rivets.
- a pump is preferred in which the nozzle flange rests on the pump housing and is fixed on the pump housing by pressing or gluing or caulking.
- a pump is also preferred in which the longitudinal axis of the nozzle flange runs parallel to the longitudinal axis of the rotor.
- Figure 1 shows an exploded view of the essential parts of the pump.
- FIG. 2 shows a cross section through part of the pump and the intake manifold in the area of the intake manifold attachment.
- an intake manifold 1 which essentially has a nozzle connection 12 and a nozzle flange 14.
- the nozzle flange 14 contains two fastening screws 16, with which the nozzle flange can be connected to the pump flange 3 through the pump housing 2.
- the fastening screws 16 are guided through through openings 18 of the pump housing 2 in thread 20 in the pump flange 3.
- the pump housing 2 can be made in this illustration from a deep-drawn sheet metal cover.
- the pump flange 3 is preferably produced as a die-cast aluminum part.
- Other essential components of the vacuum pump are the rotor 10, which can guide a monofoil 9 with attached sealing caps 24 in a slot 22.
- the rotor 10 is guided eccentrically to the pump housing 2 through a bearing opening 26 in the pump flange 3, the pump housing 2 representing the raceway for the wing 9 or the sealing caps 24.
- the function of such a mono-vane pump is known and will therefore not be explained further here.
- the structure and arrangement of the intake manifold 1 on the vacuum pump is essential to the invention.
- the intake port 1 contains a port connection 12 and a port flange 14. Air is evacuated via the port connection 12 from a brake booster located in the motor vehicle. Different installation conditions in different motor vehicles require that the position of the connection piece 12 in relation to the pump can be arranged differently from case to case. Therefore, a nozzle connection that is firmly integrated into the pump housing 2 would be, for. B. disadvantageous due to the complex sheet metal lid tool. Therefore, the flange design according to the invention is selected here.
- the pressure medium sucked in by the vacuum pump is passed through an opening 8 in the pump housing 2 into a connecting channel 4 in the pump flange 3, the connecting channel 4 extending into the pump chamber 7 and thus connecting the suction chamber of the pump to the suction port 1.
- the connecting channel 4 can preferably be represented here by a recess in the pump flange 3, since the connecting channel lies in the parting plane between the pump flange 3 and the pump housing 2.
- the depression forming the connecting channel 4 does not require an undercut, so that it can be produced inexpensively. In a cast part it does not need a slide and can be pre-cast, in a deep-drawn part it can be stamped. That would be the case if e.g. B. alternatively, the connecting channel 4 would be introduced into the metal cover 2.
- the nozzle connection 12 of the intake manifold 1 can be straight or angled. A high degree of flexibility is ensured by varying the height, the angle or the position of the nozzle connection 12 relative to the nozzle flange 14.
- a seal 5 between the pump housing 2 and the pump flange 3 is guided around the intake duct 4.
- the suction nozzle 1 rests on the pump housing 2 and is connected through the pump housing 2 to the pump flange 3, for example by screws or rivets. This allows the number of remaining fasteners, e.g. B. the screws 28, between the pump flange 3 and the pump housing 2 can be reduced.
- Alternative joining options for the intake manifold 1 would be pressing or gluing or caulking on the housing cover 2 or through the housing cover 2 as far as into the pump flange 3.
- the intake manifold 1 according to the invention and part of the pump housing 2 is shown in section.
- the intake port 1 has the port connection 12, the longitudinal axis 30 of which is angled by 90 ° relative to the port flange 14 and the longitudinal axis 32.
- the nozzle flange 14 is sealed by an O-ring seal 36 with respect to the pump housing 2, which is guided in a guide ring 34 which is clipped or pressed into the nozzle flange.
- the pump housing 2 in turn lies sealingly on the pump flange 3, a seal 5 between the pump housing 2 and the pump flange 3 producing the necessary seal.
- a connection channel 4 is shown, which connects the intake port 1 with the pump interior 7 and the suction space formed therein.
- the intake manifold 1 also contains a check valve 6 which has a valve membrane 40 which is guided on a central pin 42.
- the valve membrane 40 rests on a sealing seat 44 and through openings, not shown here, located therein if the pressure in the connecting channel 4 and in the pump chamber 7 is greater than the negative pressure in the brake booster, which is effective in the connection port 12. This will cause the membrane, e.g. B.
- the brake booster can not lose its vacuum.
- a negative pressure is generated in the pump chamber 7, which lifts the check valve membrane 40 from the seat 44 via the connecting channel 4 and thereby also generates a vacuum via the connecting piece 12 in the brake booster.
- the arranged in the nozzle flange 14 of the suction port 1 line space 48 is closed by a cover 46, which here z. B. can be pressed gas-tight.
- the nozzle connection 12 also has a circumferential elevation 38, which ensures the sealing of the nozzle connection 12 against a pushed-on suction hose.
- the inventive design of the intake manifold 1 and the vacuum pump equipped with it shows the advantage of a compact vacuum pump with a space-saving arrangement of intake manifold and intake duct.
- the intake manifold construction represents a flexible concept due to different intake manifold designs, which are standardized for a vacuum pump Pump housing can be used. This arrangement of the intake manifold enables a low axial height of the pump and cost-effective manufacture.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
- Fluid-Driven Valves (AREA)
- Eye Examination Apparatus (AREA)
- Compressor (AREA)
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10301622 | 2003-01-17 | ||
| DE10301622 | 2003-01-17 | ||
| PCT/EP2004/000277 WO2004065795A1 (de) | 2003-01-17 | 2004-01-16 | Pumpe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1588054A1 true EP1588054A1 (de) | 2005-10-26 |
| EP1588054B1 EP1588054B1 (de) | 2011-03-30 |
Family
ID=32747454
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP04702662A Expired - Lifetime EP1588054B1 (de) | 2003-01-17 | 2004-01-16 | Pumpe |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP1588054B1 (de) |
| AT (1) | ATE503931T1 (de) |
| DE (1) | DE502004012345D1 (de) |
| WO (1) | WO2004065795A1 (de) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004053521A1 (de) * | 2004-10-29 | 2006-05-11 | Joma-Hydromechanic Gmbh | Flügel für eine Rotorpumpe |
| WO2007054055A1 (de) * | 2005-11-09 | 2007-05-18 | Ixetic Hückeswagen Gmbh | Pumpe. insbesondere flügelzellenvakuumpumpe |
| WO2008003279A2 (de) * | 2006-07-01 | 2008-01-10 | Ixetic Hückeswagen Gmbh | Vakuumpumpe, spritzgiesswerkzeug für das pumpengehäuse, herstellungsverfahren des pumpengehauses und herstellungsverfahren eines pumpengehäuses mit zwei in einem arbeitsgang hergestellten dichtungen |
| DE102008059227B4 (de) | 2008-11-20 | 2021-01-14 | Joma-Polytec Gmbh | Vakuumpumpe |
| EP2391828B1 (de) | 2009-02-02 | 2013-10-02 | ixetic Hückeswagen GmbH | Vakuumpumpengehäusedeckel |
| WO2011134448A2 (de) * | 2010-04-26 | 2011-11-03 | Ixetic Hückeswagen Gmbh | Vakuumpumpe |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2904686A1 (de) * | 1979-02-08 | 1980-08-14 | Volkswagenwerk Ag | Oelgeschmierte vakuumpumpe mit einem im bereich ihrer ansaugoeffnung angeordneten oelabscheider |
| DE3105665A1 (de) * | 1980-02-20 | 1982-03-18 | Barmag Barmer Maschinenfabrik Ag, 5630 Remscheid | "fluegelzellenvakuumpumpe mit einer vorevakuierung des saugraumes, insbesondere zur bremskraftverstaerkung in kraftfahrzeugen" |
| ES2264306B2 (es) * | 2000-10-18 | 2008-03-01 | LUK AUTOMOBILTECHNIK GMBH & CO.KG. | Bomba. |
-
2004
- 2004-01-16 EP EP04702662A patent/EP1588054B1/de not_active Expired - Lifetime
- 2004-01-16 WO PCT/EP2004/000277 patent/WO2004065795A1/de not_active Ceased
- 2004-01-16 AT AT04702662T patent/ATE503931T1/de active
- 2004-01-16 DE DE502004012345T patent/DE502004012345D1/de not_active Expired - Lifetime
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2004065795A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| ATE503931T1 (de) | 2011-04-15 |
| DE502004012345D1 (de) | 2011-05-12 |
| WO2004065795A1 (de) | 2004-08-05 |
| EP1588054B1 (de) | 2011-03-30 |
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