EP3577343A1 - Flügelzellen-gaspumpe - Google Patents
Flügelzellen-gaspumpeInfo
- Publication number
- EP3577343A1 EP3577343A1 EP17706989.5A EP17706989A EP3577343A1 EP 3577343 A1 EP3577343 A1 EP 3577343A1 EP 17706989 A EP17706989 A EP 17706989A EP 3577343 A1 EP3577343 A1 EP 3577343A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pump
- cam ring
- thrust washer
- vane
- 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
- 239000012530 fluid Substances 0.000 claims abstract description 27
- 238000005086 pumping Methods 0.000 claims description 20
- 238000007789 sealing Methods 0.000 description 21
- 230000002093 peripheral effect Effects 0.000 description 7
- 239000000314 lubricant Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 208000002193 Pain Diseases 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000003068 static effect Effects 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
- 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
- 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
- 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
-
- 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
-
- 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
-
- 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
- F04C2240/40—Electric motor
Definitions
- the invention relates to a vane-cell gas pump.
- vane-type gas pumps are known from the prior art and are usually used in motor vehicles as so-called vacuum pumps in combination with a brake booster.
- the vane pump delivers the operation of the
- Brake booster required negative pressure, which is generally 100 mbar or less absolute.
- the known from the prior art aviation gas pumps usually have a pump housing, which encloses a pumping chamber, wherein in the pumping chamber, a pump rotor is arranged.
- the pump rotor is driven by an electric motor or mechanically by an internal combustion engine and has a plurality of radially displaceable slide elements. Two adjacent slide elements bound together with the pump rotor and the pump housing in each case a rotating Pumpfach.
- the slide elements move due to the force acting on the slide elements centrifugal force such that they rest with their head in each case on a peripheral wall of the pumping chamber.
- a fluid inlet opening and at least one fluid outlet opening are formed in the pump housing, wherein the fluid inlet opening and the fluid outlet opening are assigned to the pumping chamber.
- Such a vane gas pump is disclosed in EP 2 568 180 A1.
- the vane gas pump has a pump housing, which is composed of a cam ring, a first separate thrust washer and a second separate thrust washer, wherein the first thrust washer is arranged on a first end face of the cam ring and the second thrust washer on a second end face of the cam ring.
- the cam ring is mounted and aligned radially via centering pins for the first thrust washer. Due to the radial alignment of the cam ring, the setting of a sealing gap which is established between the inner peripheral surface of the cam ring and the outer peripheral surface of the pump rotor and largely avoids a gas flow between the fluid inlet port and the fluid outlet port.
- the final assembly of the thrust washers and the cam ring via housing screws which sandwich the first thrust washer, the second thrust washer and the cam ring axially together.
- a disadvantage of the embodiment disclosed in EP 2 568 180 A1 is that the radial positioning of the lifting ring takes place exclusively via the centering pins.
- the method for exact adjustment of the sealing gap is complicated and error prone.
- the invention is therefore based on the object to provide a vane-gas pump with simplified mountability.
- the gas pump has a pump housing which limits a pumping chamber.
- a pump rotor is arranged, which is driven either electrically by an electric motor or mechanically by an internal combustion engine.
- the pump rotor is arranged eccentrically in the pumping chamber and, together with the peripheral wall of the pumping chamber, forms a sealing gap defining the sealing sector, whereby a crescent-shaped working space is defined outside the sealing sector.
- the pump housing is composed of a first thrust washer, a separate second thrust washer and a separate cam ring.
- the lifting ring is axially braced via at least one Hubrlng-adjusting with the first thrust washer.
- the second thrust washer is connected via at least one separate housing-clamping means with the first thrust washer, wherein the first thrust washer, the axially arranged between the two thrust washers cam ring and the second thrust washer are clamped together via the at least one housing clamping means.
- At least one displaceable slide element is mounted in the pump rotor.
- the pump rotor has at least one slide slot in which the at least one slide element is displaceably arranged.
- the at least one sliding element may be spring-loaded, so that the head of the at least one slide element bears against the circumferential wall of the pumping chamber by the spring force even at low rotational speeds.
- the pumping chamber is divided into function in an inlet, an outlet and the sealing sector.
- a fluid inlet opening is arranged, which is fluidically connected in the installed state, for example, with a vacuum chamber of a brake booster and evacuated.
- a fluid outlet opening is arranged, wherein the pumping chamber is fluidically connected to the atmospheric environment via the fluid outlet opening.
- the sealing sector is arranged, in which a gas flow between the fluid inlet opening and the fluid outlet opening is largely prevented.
- a narrow sealing gap in the tenth of a millimeter range is formed between the outer peripheral surface of the circular pump rotor and the inner peripheral surface of the cam ring.
- the cam ring is first placed on the first thrust washer and slightly attached by at least one Hubring- adjusting, for example, a threaded screw, so that the cam axially fixed but radially even while overcoming a certain static friction is displaced.
- a pump rotor gauge is used, for example, an adjusting pump rotor, which has a slightly larger circular outer diameter compared to the actual working pump rotor, for example with a radius enlarged by 0.1 mm.
- the used adjusting pump rotor defines in this way the final gap between the working pump rotor and the lifting ring.
- the cam ring is brought into contact with the adjusting pump rotor in the radial direction. In this position, the lifting ring is finally fixed by final fixation of the cam ring via the cam-adjusting means to the first thrust washer, so that its radial position can not be changed.
- the cam-adjusting means brace the cam ring such that the cam ring is fixed radially only via the friction of the voltage applied to the first thrust washer end face and the Kopfreibung the cam-adjusting means.
- the adjustment pump rotor is removed again, and the working pump rotor including the slide elements is used.
- the second thrust washer is mounted on separate housing-clamping means, being clamped by the housing clamping means the first thrust washer, the axially arranged between the two thrust washers cam ring and the second thrust washer to each other sandwiched. Due to the housing clamping device, only the two stop disks are clamped together directly.
- the gap dimension in the sealing sector between the cam ring and the pump rotor can be reliably adjusted in a simple and cost-effective manner, wherein the Fertlgungstoieranzen the components have significantly less impact on the set Spaitance.
- this is at least one Hubrlng-Justiermitte! a threaded screw or a threaded bolt with a threaded nut.
- the first thrust washer on a bore with an internal thread into which the threaded screw or the threaded bolt is screwed or is.
- the threaded bolt has at both axial ends a thread, wherein the threaded bolt is screwed with a thread in the first thrust washer and the other thread is provided for the threaded nut over which the cam ring is clamped axially directly with the first thrust washer.
- the screw head of the threaded screw or the threaded nut abut against the first thrust washer facing away from the end face of the cam ring.
- the cam ring is clamped axially over exactly two cam ring adjusting means with the first thrust washer, whereby a relatively uniform surface pressure between the end face of the cam ring and the first thrust washer is present.
- this is at least one Hubring-Justiermitte! inserted through a formed in the cam ring through hole, wherein the diameter of the through hole is larger than the diameter of the cam ring adjusting means, for example, a few millimeters larger.
- the attached lifting ring can be moved radially and the radial gap dimension can be set in the sealing sector.
- the lifting ring instead of the through hole having a groove open in the radial direction.
- the second thrust washer in the region of the at least one cam ring adjusting means on a recess, whereby the second thrust washer can be easily mounted.
- the second thrust washer can coaxial with the Hubring- Justierstoff identify a hole, whereby the gap can still be adjusted if all housing components are already assembled, to readjust all Hubring- Justiermlttel and all housing-clamping screws must be at least partially resolved.
- the vane gas pump is a dry-running vane gas pump, so that no lubricant is passed into the pumping chamber.
- the dry running gas pump has no lubricant connection.
- the lubricant serves, among other things, the sealing gap in the sealing sector seal. By omitting the lubricant, this seal is no longer present, so that when dry running gas pumps the exact setting of a very narrow sealing gap for a good pneumatic efficiency is particularly important.
- the gap should preferably be a maximum of 0.2 mm. In a particularly preferred embodiment, the gap is 0.1 mm.
- the axial clamping of the cam ring with the first thrust washer can be done by direct or indirect connection.
- the Hubring- adjusting means can be inserted, for example, through the through hole formed in the cam and through a through hole formed in the first thrust washer and screwed into a formed in a housing or a flange thread, so that the first thrust washer between the cam and the flange or the Housing is clamped.
- the cam ring is screwed directly to the first thrust washer via the at least one cam ring adjusting means, wherein the cam ring adjusting means is inserted through the through bore formed in the cam ring and the cam ring adjusting means is screwed into a thread formed in the first thrust washer.
- FIG. 1 shows an exploded view of a dry running vane-cell gas pump
- FIG. 2 shows a cross section of the dry-running vane-cell gas pump from FIG. 1.
- FIGS 1 and 2 show a trained as a so-called vacuum pump aviation gas pump 10, which is for example intended for use in a motor vehicle and can generate an absolute pressure of 100 mbar or more.
- the dry-lubricated vane pump 10 has a metal pump housing 20, which encloses a pumping chamber 22.
- the pump housing 20 is composed essentially of a cam ring 74, a separate first thrust washer 76 and a separate second thrust washer 72.
- a circular pump rotor 30 is rotatably arranged eccentrically to the center of gravity of the pumping chamber 22, which is rotatably connected via a drive shaft 140 m with an electric motor 90.
- the pump rotor 30 has five slide slots 321, 341, 361, 381, 401, in each of which a slide element 32, 34, 36, 38, 40 is slidably mounted.
- the five sliding elements 32, 34, 36, 38, 40 are not exactly radially oriented, but arranged stinging and divide the pumping chamber 22 in five rotating Pumpf kauer, each having the same Pumpfachwinkel a of about 70 °.
- the pump rotor 30 is driven by an electric motor 90.
- the pumping chamber 22 can be divided into several sectors, namely an inlet sector 42 having a fluid inlet opening 60, an outlet sector 44 having a first fluid outlet opening 52 and a second fluid outlet opening 54 and a sealing sector 46.
- the sealing sector 46 is, as viewed in the direction of rotation, between the outlet sector 44 and the inlet sector 42 and prevents gas flow from the Fiuidauslassö réelleen 52, 54 to the fluid inlet port 60th
- the fluid inlet opening 60 is formed in the first thrust washer 76.
- the two Fiuidauslassö réelleen 52, 54 are formed in the second thrust washer 72.
- the first fluid outlet opening 52 is in
- the first fluid outlet 52 is fluidly associated with a check valve 70, wherein the check valve 70 a
- Tongue valve is and a valve tongue 80 and a Wegbegrenzer 82, both of which are fixed to the second thrust washer 72.
- the pump rotor 30 and the cam ring 74 are first mounted on the thrust washer 76, wherein the cam ring 74 is radially applied to the pump rotor 30, a gap 130 in the sealing sector 46 between the pump rotor 30 and the cam 74 is set and the Circlip 74 via the two Hubring- adjusting means 100, 102 is finally clamped in the set position.
- the gap 130 can be adjusted for example with a spring gauge.
- cam-adjusting means 100, 102 threaded screws 100 ⁇ 102 1 are used, which are inserted through each trained in the cam ring 74 through holes 106 and in each case one in the first thrust washer 76 formed internal thread 104 are screwed.
- the through hole 106 is several millimeters larger than the diameter of the cam ring adjustment means 100, 102 carried out so that the cam ring 74 is radially displaceable and thereby adjustment of the gap 130 between the pump rotor 30 and the cam ring 74 in the sealing sector 46 can take place.
- a dummy motor can be used to set the gap 130.
- the cam-adjusting means 100, 102 brace the cam ring 74 such that the cam ring 74 only on the friction of the first Thrust washer 76 adjacent end face and the Kopfreibung the cam-adjusting means 100, 102 is radially fixed.
- the second thrust washer 72 has two Aussparrungen 120, 122, wherein in each case a recess 120, 122 of a cam-adjusting screw 100 102 'is assigned.
- the second thrust washer 72 is mounted on three separate housing-clamping means 110, 112, 114, wherein each housing clamping means 110, 112, 114 by one formed in the second thrust washer 72 through hole 118 and each formed in a cam ring 74 larger Through hole 119 is inserted therethrough and in each case one in the first thrust washer 76 formed internal thread 116 is screwed.
- the housing-clamping means 110, 112, 114 By the housing-clamping means 110, 112, 114, the first thrust washer 76, the axially between the two Aniauffusionn 72, 76 arranged cam ring 74 and the second thrust washer 72 are clamped axially sandwiched together.
- the gap 130 in the sealing sector 46 between the cam ring 74 and the pump rotor 30 can be adjusted in a simple and cost-effective manner, the manufacturing tolerances of the components have little effect on the set gap 130.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP2017052169 | 2017-02-01 | ||
PCT/EP2017/054143 WO2018141419A1 (de) | 2017-02-01 | 2017-02-23 | Flügelzellen-gaspumpe |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3577343A1 true EP3577343A1 (de) | 2019-12-11 |
EP3577343B1 EP3577343B1 (de) | 2020-11-04 |
Family
ID=58159065
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17706989.5A Active EP3577343B1 (de) | 2017-02-01 | 2017-02-23 | Flügelzellen-gaspumpe |
Country Status (5)
Country | Link |
---|---|
US (1) | US11174864B2 (de) |
EP (1) | EP3577343B1 (de) |
JP (1) | JP6908732B2 (de) |
CN (1) | CN110234882B (de) |
WO (1) | WO2018141419A1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE112020007741T5 (de) | 2020-10-30 | 2023-08-17 | Pierburg Pump Technology Gmbh | Kraftfahrzeugvakuumpumpe und Herstellungsverfahren zur Herstellung einer Kraftfahrzeugvakuumpumpe |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3433166A (en) * | 1967-09-11 | 1969-03-18 | Itt | Rotating vane machine couplings |
JPS5890334A (ja) | 1981-11-24 | 1983-05-30 | Nissan Shatai Co Ltd | ラジエ−タフインの製造方法 |
JPS6299684A (ja) | 1985-10-28 | 1987-05-09 | Nitsukisou Eiko Kk | 電磁駆動形往復動ポンプ |
JPH0244075Y2 (de) * | 1986-11-21 | 1990-11-22 | ||
DE3909831A1 (de) * | 1989-03-25 | 1990-09-27 | Becker Kg Gebr | Trockenlaufende drehschiebervakuumpumpe sowie verfahren zu deren herstellung |
JPH0570116A (ja) | 1991-09-10 | 1993-03-23 | Kawasaki Steel Corp | 電気粘性流体用炭素質粉末の製造方法 |
JPH09209954A (ja) | 1996-02-08 | 1997-08-12 | Zexel Corp | 吐出弁構造 |
DE19937704A1 (de) * | 1999-08-10 | 2001-02-15 | Continental Teves Ag & Co Ohg | Vakuumpumpenaggregat |
JP2003269349A (ja) | 2002-03-11 | 2003-09-25 | Seiko Instruments Inc | 気体圧縮機 |
JP4718831B2 (ja) | 2004-12-27 | 2011-07-06 | アネスト岩田株式会社 | スクロール流体機械 |
US7793416B2 (en) * | 2006-05-15 | 2010-09-14 | Viking Pump, Inc. | Methods for hardening pump casings |
JP2010024956A (ja) | 2008-07-18 | 2010-02-04 | Panasonic Electric Works Co Ltd | ベーンポンプ |
JP4935887B2 (ja) | 2009-12-11 | 2012-05-23 | 株式会社デンソー | ベーン式ポンプおよびそれを用いたエバポリークチェックシステム |
EP2568180B1 (de) | 2011-09-12 | 2019-11-13 | Pierburg Pump Technology GmbH | Flügelzellenpumpe |
WO2015104930A1 (ja) | 2014-01-09 | 2015-07-16 | カルソニックカンセイ株式会社 | 気体圧縮機 |
-
2017
- 2017-02-23 WO PCT/EP2017/054143 patent/WO2018141419A1/de unknown
- 2017-02-23 US US16/481,834 patent/US11174864B2/en active Active
- 2017-02-23 JP JP2019562462A patent/JP6908732B2/ja active Active
- 2017-02-23 CN CN201780085278.5A patent/CN110234882B/zh active Active
- 2017-02-23 EP EP17706989.5A patent/EP3577343B1/de active Active
Also Published As
Publication number | Publication date |
---|---|
EP3577343B1 (de) | 2020-11-04 |
CN110234882A (zh) | 2019-09-13 |
JP6908732B2 (ja) | 2021-07-28 |
WO2018141419A1 (de) | 2018-08-09 |
JP2020506333A (ja) | 2020-02-27 |
US11174864B2 (en) | 2021-11-16 |
CN110234882B (zh) | 2021-03-09 |
US20190345936A1 (en) | 2019-11-14 |
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