EP3475573A1 - Ensemble de pompes à vides de véhicule automobile - Google Patents

Ensemble de pompes à vides de véhicule automobile

Info

Publication number
EP3475573A1
EP3475573A1 EP16731591.0A EP16731591A EP3475573A1 EP 3475573 A1 EP3475573 A1 EP 3475573A1 EP 16731591 A EP16731591 A EP 16731591A EP 3475573 A1 EP3475573 A1 EP 3475573A1
Authority
EP
European Patent Office
Prior art keywords
arrangement
pump
outlet
end wall
rotor
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
EP16731591.0A
Other languages
German (de)
English (en)
Other versions
EP3475573B1 (fr
Inventor
Sebastian Cramer
Nabil Salim AL-HASAN
Daniel Müller
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.)
Pierburg Pump Technology GmbH
Original Assignee
Pierburg Pump Technology 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 Pierburg Pump Technology GmbH filed Critical Pierburg Pump Technology GmbH
Publication of EP3475573A1 publication Critical patent/EP3475573A1/fr
Application granted granted Critical
Publication of EP3475573B1 publication Critical patent/EP3475573B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • 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
    • F04C29/128—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 of the elastic type, e.g. reed valves
    • 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
    • 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
    • F04C29/06—Silencing
    • F04C29/065—Noise dampening volumes, e.g. muffler chambers
    • 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
    • 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
    • F04C2220/12—Dry running
    • 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
    • F04C2250/00—Geometry
    • F04C2250/20—Geometry of the rotor

Definitions

  • the invention relates to an electric vehicle vacuum pump assembly having a housing assembly with an inlet opening arrangement and an outlet opening arrangement comprising a pump unit and a drive motor, wherein the pump unit comprises a pump rotor housing consisting of an inlet and outlet side end wall and a pump rotor housing part arranged therebetween, the one Pump rotor space in which a pump rotor is provided, wherein the drive motor comprises a motor rotor and a motor stator, wherein Schalidämpfungsm Ittel provided for noise reduction, wherein the silencer means have at least two series-connected Schalldämpfungsschreib, wherein the first Schalldämpfungsraum via a first connection arrangement fluidly with the pump rotor space and fluidly connected via a second connection arrangement with the second sound-damping chamber and wherein the second sound-damping chamber fluidly m it is connected to the outlet opening arrangement.
  • An electrically driven vehicle vacuum pump generates in a motor vehicle (motor vehicle), regardless of the operating state of an internal combustion engine, a negative pressure of, for example, 100 millibars absolute, which is needed for example for operating a pneumatic brake booster and / or other pneumatically operated ancillaries.
  • the electric power of the drive motor is typically in the range of 100W at low Vacuum pumps and several 100 W with large vacuum pumps, Depending on the pumping capacity and speed of the pump unit, the noise emissions can be so significant that extensive measures for soundproofing and / or the need to make the bollard shield.
  • An example of this is described in WO 2014/135202 Al.
  • the structure of this electric vacuum pump is very expensive due to the silencer used and requires a relatively large amount of space.
  • the object of the invention is therefore to provide an electric K FZ vacuum pump arrangement with low noise emissions, which reports the above-mentioned disadvantages in a simple and cost-effective manner.
  • the vacuum pump thus requires a smaller space and is cheaper to produce.
  • the first sound-damping chamber is integrated in the outlet-side end wall.
  • the first connection arrangement may consist of a first pump outlet with a check valve and a second pump outlet arranged offset in the direction of rotation of the pump rotor.
  • the first sound-damping chamber is advantageously produced by a cover element arranged on a side of the outlet-side end wall facing away from the pump rotor, wherein the second connection arrangement is designed as a groove in the outlet-side end wall.
  • the housing assembly on a cover member, which surrounds the outlet-side end wall such that a second sound-damping chamber is formed.
  • the outlet opening arrangement is provided as a bore arrangement in the form of successive bore elements in the outlet-side end wall, in the pump rotor housing part and in the inlet-side end wall, existing housing parts can be used for the outlet opening and a considerable sound damping is ensured by the reflection properties of the bore arrangement.
  • the sound attenuation can be improved once again by the fact that the bore element expands in the inlet-side end wall toward the outlet side.
  • the pump unit is arranged coaxially with the drive motor, wherein a rotor shaft of the drive rotor is mounted in the inlet-side end wall via bearing means.
  • Figure 1 is a perspective view of an electric vehicle vacuum pump assembly according to the invention.
  • FIG. 2 shows a sectional view of a pump unit and of a part of the drive motor of the motor vehicle vacuum pump arrangement from FIG. 1.
  • an electric vehicle vacuum pump assembly 2 which serves in a motor vehicle, the provision of vacuum with an absolute pressure of, for example, 100 mbar and lower.
  • the vacuum is mainly used as potential energy for actuators, such as a pneumatic brake booster or other pneumatic automotive actuators.
  • An electric drive for automotive vacuum pumps is increasingly required because the automotive internal combustion engine is not constantly running during vehicle operation.
  • the motor vehicle vacuum pump arrangement 2 consists essentially of a housing assembly 4, which has a drive motor 6 and a pump unit 8.
  • the drive motor 6 is in this case provided in a cup-shaped motor housing 10 and has in a known manner a drive rotor 12 (see FIG. 2) and a drive motor stator not shown.
  • the pump unit 8 has a pump rotor housing 14, which consists of an inlet and Ausiass Japaneseen end wall 16, 18 and a pump rotor housing part 20 arranged therebetween (see also here in particular Figure 2).
  • the housing assembly 4 further has a cover plate element 22, the outlet-side end wall 18 and the Pumpenrotorgekorusetei! 20 engages and engages positively on the inlet-side end wall 16.
  • the rotor housing 14 with the end cover element 22 is connected to the cup-shaped drive motor housing 10 via a first flange element 24.
  • the first flange 24 again connects with the interposition of damping body 26 on a second flange 28, via which the vehicle vacuum pump assembly 2 can be connected to a body component of a motor vehicle.
  • FIG. 1 further shows an inlet opening arrangement 30 in the form of a plastic tube element, which is provided in the inlet-side end wall 16 and through which air to be led off from a motor vehicle actuator is to be guided into the pump unit 8.
  • the outlet opening arrangement is designated, from which the compressed air from the pump unit 8 air is discharged into the environment.
  • the drive motor 6 has a drive rotor 12 which is rotatably fixed on a drive rotor shaft 34, wherein the drive rotor shaft 34 at the same time as a rotor shaft for a in A pump rotor space 35 of the pump rotor housing 14 provided pump rotor 36 is used.
  • the drive rotor shaft 34 is mounted in the inlet-side end wall 16 via a bearing means 38 designed as a roller bearing.
  • 40 denotes an electrical connection cable for the power supply of the drive motor 6.
  • the air sucked through the inlet opening arrangement 30 and compressed in the rotor space 35 by the pump rotor 36 designed as a vane cell rotor is discharged through a first connection arrangement 42 the rotor space 35 ejected.
  • the first connection arrangement 42 consists in a known manner of a first pump outlet 44, which has a check valve 46 for noise reduction and a second pump outlet 48 which is arranged offset in the direction of rotation of the pump rotor 36. Via this first connection arrangement 42, the compressed air passes into a first sound-damping chamber 50, which is integrated in the outlet-side end wall 18.
  • the first sound-damping chamber 50 has a cover element 52 on the side of the outlet-side end wall 18 facing away from the pump rotor 36.
  • this cover member 52 and the second connection assembly 54 is made, which is designed substantially as a groove 56 in the outlet-side end wall 18.
  • the compressed air damped in a first sound-damping chamber 50 is transferred into a second sound-damping chamber 58.
  • This sound-damping chamber 58 is essentially produced in that the end cover element 22 surrounds the outlet-side end wall 18 in a fluid-tight manner.
  • the compressed air is then released to the environment via the outlet port assembly 32 formed as a bore assembly 60.
  • the bore assembly 60 is constructed of successive bore elements 62, 64 and 66.
  • the bore member 62 is provided in the outlet side end wall 18, the bore member 64 in the pump rotor housing part 20 and the bore member 66 in the inlet side end wall 16. Due to the fact that the bore arrangement 60 forms an elongate tubular element in this way, additional damping of the airborne sound can be achieved once again.
  • the bore member 66 is also expanded toward the outlet side, whereby a further reduction in noise is made due to a pressure change. It should be clear that, depending on the design of the electric vehicle vacuum pump arrangement 2, the second connection arrangement 54 may additionally or solely be designed as a bore arrangement.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
  • Rotary Pumps (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)

Abstract

L'invention concerne un ensemble électrique de pompes à vides de véhicule automobile comprenant un ensemble boîtier (4) doté d'un ensemble ouverture d'entrée (30) et d'un ensemble ouverture de sortie (32), lequel ensemble boîtier comprend un groupe motopompe (8) et un moteur d'entraînement (6), le groupe motopompe (8) comprenant un carter de rotor de pompe (14) constitué d'une paroi frontale (16, 18) côté entrée et côté sortie et d'une partie de carter de rotor de pompe (20) disposée entre celles-ci, lesquelles forment une chambre de rotor de pompe (35) dans laquelle un rotor de pompe (36) est situé, le moteur d'entraînement (6) comprenant un rotor de moteur (12) et un stator de moteur, des moyens d'amortissement du bruit (50, 58, 60) étant destinés à la réduction du bruit, les moyens d'amortissement du bruit (50, 58, 60) comprenant au moins deux chambres d'amortissement du bruit (50, 58) placées l'une derrière l'autre, la première chambre d'amortissement du bruit (50) étant reliée fluidiquement à la chambre de rotor de pompe (35) par le biais d'un premier ensemble de liaison (42) et étant reliée fluidiquement à la deuxième chambre d'amortissement du bruit (58) par le biais d'un deuxième ensemble de liaison (54), et la deuxième chambre d'amortissement du bruit (58) étant reliée fluidiquement à l'ensemble ouverture de sortie (32), au moins un moyen d'amortissement du bruit se présentant sous la forme d'un ensemble alésage (60) étant prévu pour le deuxième ensemble de liaison (54) et/ou l'ensemble ouverture de sortie (32).
EP16731591.0A 2016-06-22 2016-06-22 Ensemble de pompes à vides de véhicule automobile Active EP3475573B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2016/064429 WO2017220141A1 (fr) 2016-06-22 2016-06-22 Ensemble de pompes à vides de véhicule automobile

Publications (2)

Publication Number Publication Date
EP3475573A1 true EP3475573A1 (fr) 2019-05-01
EP3475573B1 EP3475573B1 (fr) 2020-08-05

Family

ID=56194488

Family Applications (2)

Application Number Title Priority Date Filing Date
EP16731591.0A Active EP3475573B1 (fr) 2016-06-22 2016-06-22 Ensemble de pompes à vides de véhicule automobile
EP17713583.7A Active EP3475574B1 (fr) 2016-06-22 2017-02-01 Pompe à gaz à palettes fonctionnant à sec

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP17713583.7A Active EP3475574B1 (fr) 2016-06-22 2017-02-01 Pompe à gaz à palettes fonctionnant à sec

Country Status (5)

Country Link
US (2) US11261869B2 (fr)
EP (2) EP3475573B1 (fr)
JP (1) JP2019518905A (fr)
CN (2) CN109154293B (fr)
WO (2) WO2017220141A1 (fr)

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Also Published As

Publication number Publication date
CN109154293B (zh) 2021-04-13
EP3475573B1 (fr) 2020-08-05
US20190323506A1 (en) 2019-10-24
WO2017220141A1 (fr) 2017-12-28
US20200309134A1 (en) 2020-10-01
CN109154294B (zh) 2019-12-31
CN109154293A (zh) 2019-01-04
WO2017220212A1 (fr) 2017-12-28
CN109154294A (zh) 2019-01-04
EP3475574A1 (fr) 2019-05-01
EP3475574B1 (fr) 2020-04-01
US11261869B2 (en) 2022-03-01
JP2019518905A (ja) 2019-07-04
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