EP0591133B1 - Actuateur rotatif electromagnetique - Google Patents

Actuateur rotatif electromagnetique Download PDF

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Publication number
EP0591133B1
EP0591133B1 EP90911756A EP90911756A EP0591133B1 EP 0591133 B1 EP0591133 B1 EP 0591133B1 EP 90911756 A EP90911756 A EP 90911756A EP 90911756 A EP90911756 A EP 90911756A EP 0591133 B1 EP0591133 B1 EP 0591133B1
Authority
EP
European Patent Office
Prior art keywords
rotary actuator
bearing
housing
actuator according
shaft
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.)
Expired - Lifetime
Application number
EP90911756A
Other languages
German (de)
English (en)
Other versions
EP0591133A1 (fr
Inventor
Klaus Neidhard
Harald Kalippke
Friedrich Wendel
Erhard Renninger
Wolfgang Staudenmaier
Johannes Meiwes
Albert Gerhard
Dieter Dick
Herbert Becker
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.)
OFFERTA DI LICENZA AL PUBBLICO OFFERTA DI LICENZA
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 EP0591133A1 publication Critical patent/EP0591133A1/fr
Application granted granted Critical
Publication of EP0591133B1 publication Critical patent/EP0591133B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M3/00—Idling devices for carburettors
    • F02M3/06—Increasing idling speed
    • F02M3/07—Increasing idling speed by positioning the throttle flap stop, or by changing the fuel flow cross-sectional area, by electrical, electromechanical or electropneumatic means, according to engine speed
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M3/00—Idling devices for carburettors
    • F02M3/06—Increasing idling speed
    • F02M2003/067—Increasing idling speed the valve for controlling the cross-section of the conduit being rotatable, but not being a screw-like valve

Definitions

  • the invention is based on a rotary actuator according to the preamble of claim 1.
  • DE-OS 37 28 589 already discloses such a rotary actuator, the rotary slide of which, however, is rotatably mounted about an axis guided in two housing parts.
  • the sealing between the pneumatic part and the electrical part takes place there through the throttle element covering the control opening in the pneumatic housing, which, however, must not "graze” despite the required tolerances. If dirt particles, chips or water droplets carried by insufficiently cleaned combustion air get through the sealing gap into the electrical part of the turntable, this can lead to malfunctions or corrosion. In addition, air can be sucked out of the electrical part in an undesired manner and falsify the desired fuel-air ratio.
  • the servomotor according to the invention with the characterizing features of claim 1 has the advantage that the sealing of the electrical and pneumatic parts is further improved and the amount of leakage air is further reduced. This is achieved by the improved mounting of the rotary valve shaft, namely by its tolerance-reducing mounting in a single housing part without an intermediate plate, which leads to a noticeable reduction in the working air gap between the throttle element and the control opening. On the other hand, only the roller bearing between the pneumatic and the electrical part acts as a seal to protect the motor.
  • the rotary actuator 1 has a servomotor 2, the rotor 9 of which acts on a throttle element 3 which is arranged in a bypass line 4 in a housing 12.
  • the bypass line 4 is connected on both sides to an intake pipe 5 with a throttle valve for controlling the idle combustion air of an internal combustion engine.
  • the throttle element 3 is seated in an opening 15 of the housing 12 which intersects the bypass line 4 and is designed as a rotary slide valve which more or less closes a control opening 6 on the supply air side of the bypass line 4.
  • the arrow indicates the direction of flow in line 4.
  • the servomotor 2 consists of a central stator 7 with field windings 8 and the cup-shaped rotor 9, which has two permanent magnet segments 10 arranged on its cylindrical jacket-shaped wall.
  • the rotor 9 has a smooth, stepless shaft 11, which is mounted in two bearings 13, 14, which are held in the housing 12 and are arranged on both sides of the throttle element 3, and from which the cylindrical jacket-shaped wall of the rotor 9 extends.
  • the throttle element 3, which projects into the opening 15 of the housing 12 and controls the bypass line 4, is fastened to the shaft 11.
  • the bypass line 4 and the throttle element 3 together form the pneumatic part 16, while the stator 7 and rotor 9 form the electrical part 17 of the rotary actuator 1.
  • the electrical part 17 is covered by a housing cap 18 in which the stator 7 is fastened on one side.
  • the bearing 13 designed as a roller bearing is pressed between the pneumatic 16 and the electrical part 17 with its inner ring 20, possibly with the interposition of a ring 19, on the rotor shaft 11.
  • the outer ring 21 of the bearing 13 is inserted into the housing 12 and is held by an angle disk 22.
  • the angle disk is pressed against the bearing 13 by a shoulder 23 in the housing cap 18.
  • Spring washer 24 inserted for pressing the bearing 13 against the housing 12 and for tolerance compensation. So that the rotor 9 is not pulled out of the housing 12 again due to the attraction of its permanent magnets 10 during the assembly of the stator 7, the angle disk 22 has lugs 25 directed towards the housing 12. These engage in an undercut groove 26 in the housing 12.
  • the housing cap 18 is screwed to the housing 12 in a manner not shown.
  • roller bearing 13 is filled with grease, also to increase the sealing effect.
  • cover plates 27 are attached to the fixed outer ring 21 of the bearing 13.
  • Bearing 13 and bearing 14 are arranged in the housing 12 on both sides of the opening 15.
  • the rotary actuator 1 is installed by inserting the rotor shaft 11 with the rotary slide 3, bearings 13, 14 and rotor 9 and the inserted angle disk 22 into the housing 12 from above. Then the angle plate 22 is pressed against the housing 12 so that the lugs 25 engage. Finally, the housing cap 18 with the stator 7 fitted is put over the rotor 9, pressed against the housing 12 and screwed. The angle disk 22 presses against the bearing 13 and fixes it.
  • the arrangement of the two bearings 13, 14 in the housing 12 allows a very precise machining of the holding openings for the bearings and the opening 15 for the rotary valve 3 in one setting, so that the rotary valve runs very precisely and the diameter tolerances of the rotary valve and opening are reduced can, resulting in only very small leakage gaps.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
  • Motor Or Generator Frames (AREA)
  • Rolling Contact Bearings (AREA)

Abstract

Dans un actuateur rotatif (1) comportant un tiroir rotatif (3) pour la commande d'une section d'étranglement, l'étanchéification des parties pneumatiques (16) et électrique (17) doit être améliorée. A cet effet, l'arbre (11) est maintenu en deux endroits, à savoir des deux côtés du tiroir rotatif (3). Les deux paliers à roulement (13, 14) se trouvent dans un boîtier (12) en une seule pièce. Ceci réduit d'une part la largeur due à la tolérance de la fente entre le tiroir rotatif (3) et l'orifice de commande (6), et constitue d'autre part par l'intermédiaire du palier (13) un joint de séparation entre les parties (16) et (17). L'actuateur rotatif (1) convient en particulier comme actuateur de ralenti pour moteurs à combustion interne.

Claims (8)

  1. Actuateur électromagnétique rotatif destiné en particulier à la commande de la section d'étranglement dans une conduite de fluide d'alimentation d'un moteur à combustion interne, comportant un moteur de réglage avec un stator solidaire du boîtier et un rotor rotatif, fixé à l'axe d'un organe d'étranglement ouvrant plus ou moins une ouverture de commande, dans lequel, l'arbre (11) de l'organe d'étranglement (3) est monté en deux paliers (13, 14) se trouvant de part et d'autre de l'organe d'étranglement, caractérisé en ce que les paliers (13, 14) sont disposés directement dans une partie de boîtier unique, d'une seule pièce (12).
  2. Actuateur selon la revendication 1, caractérisé en ce que l'un des paliers (13) est disposé entre la partie pneumatique (16) et la partie électrique (17) de manière à séparer les deux parties.
  3. Actuateur selon la revendication 1 ou 2, caractérisé en ce que le palier (13) est un palier de roulement rempli de graisse dont la chambre intérieure est rendue étanche par des rondelles de recouvrement (27).
  4. Actuateur selon l'une des revendications précédentes, caractérisé en ce que l'organe d'étranglement (3) est disposé du côté de l'arrivée d'air de la conduite de dérivation (4).
  5. Actuateur selon l'une des revendications précédentes, caractérisé en ce que l'arbre de rotor (11) est un arbre lisse non étagé.
  6. Actuateur selon l'une des revendications précédentes, caractérisé en ce que le palier (13) est comprimé contre le boîtier (12) par la force d'un ressort.
  7. Actuateur selon l'une des revendications précédentes, caractérisé en ce que le palier (13) est maintenu par une rondelle coudée (22) qui repose sur un épaulement (23) dans un capuchon de boîtier (18) recouvrant la partie électrique (17).
  8. Actuateur selon l'une des revendications précédentes, caractérisé en ce que la rondelle coudée (22) représente des becs (25) qui sont accrochés dans une rainure (26) à contre-dépouille du boîtier (12).
EP90911756A 1989-08-16 1990-08-04 Actuateur rotatif electromagnetique Expired - Lifetime EP0591133B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE3926912A DE3926912A1 (de) 1989-08-16 1989-08-16 Elektromagnetischer drehsteller
DE3926912 1989-08-16
PCT/DE1990/000601 WO1991002894A1 (fr) 1989-08-16 1990-08-04 Actuateur rotatif electromagnetique

Publications (2)

Publication Number Publication Date
EP0591133A1 EP0591133A1 (fr) 1994-04-13
EP0591133B1 true EP0591133B1 (fr) 1994-12-07

Family

ID=6387152

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90911756A Expired - Lifetime EP0591133B1 (fr) 1989-08-16 1990-08-04 Actuateur rotatif electromagnetique

Country Status (9)

Country Link
US (1) US5229671A (fr)
EP (1) EP0591133B1 (fr)
JP (1) JPH05500095A (fr)
KR (1) KR0167356B1 (fr)
AU (1) AU639009B2 (fr)
BR (1) BR9007595A (fr)
DE (2) DE3926912A1 (fr)
ES (1) ES2065540T3 (fr)
WO (1) WO1991002894A1 (fr)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4019749A1 (de) * 1990-06-21 1992-01-09 Bosch Gmbh Robert Elektromagnetischer drehsteller
DE4229587A1 (de) * 1992-09-04 1994-03-10 Hella Kg Hueck & Co Einrichtung zur Steuerung der Luftmenge einer Brennkraftmaschine
ATE210452T1 (de) * 1992-10-02 2001-12-15 Alberta Res Council Entzündungshemmende tolerogene und immunoinhibitorische eigenschaften von karbohydrate bindende peptide
US5505684A (en) * 1994-08-10 1996-04-09 Piramoon Technologies, Inc. Centrifuge construction having central stator
DE4433970A1 (de) * 1994-09-23 1996-03-28 Teves Gmbh Alfred Elektromotor für ein Triebwerk, insbesondere für eine Pumpe
SE518096C2 (sv) * 2001-06-12 2002-08-27 Skf Ab Monteringsorgan
US6602099B1 (en) 2002-02-06 2003-08-05 Brunswick Corporation Vibration isolation support structure for a throttle body
US8974567B2 (en) 2010-01-27 2015-03-10 Cummins Filtration Ip Inc. Rotating coalescer with keyed drive
US8807097B2 (en) 2010-01-27 2014-08-19 Cummins Filtration Ip Inc. Closed crankcase ventilation system
US9194265B2 (en) 2010-01-27 2015-11-24 Cummins Filtration Ip, Inc. Rotating separator with housing preventing separated liquid carryover
US8940068B2 (en) * 2010-01-27 2015-01-27 Cummins Filtration Ip Inc. Magnetically driven rotating separator
US8893689B2 (en) 2010-01-27 2014-11-25 Cummins Filtration Ip, Inc. Crankcase ventilation self-cleaning coalescer with intermittent rotation
DE112012004612B4 (de) 2011-11-04 2022-05-25 Cummins Filtration Ip, Inc. Rotierender Abscheider mit Gehäuse zur Verhinderung des Mitreissens von abgeschiedener Flüssigkeit
CN112803641B (zh) * 2021-02-22 2022-06-24 苏州诺雅电动车有限公司 永磁盘式电机及转子组件安装方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3229170A (en) * 1963-08-01 1966-01-11 Genevieve I Magnuson Rotary solenoid
DE3001473A1 (de) * 1980-01-17 1981-07-23 Robert Bosch Gmbh, 7000 Stuttgart Stelleinrichtung zur drehwinkeleinstellung
JPS5911789B2 (ja) * 1980-06-20 1984-03-17 株式会社日本自動車部品総合研究所 ロ−タリ型電磁流量制御弁装置
JPS5745908A (en) * 1980-09-03 1982-03-16 Nippon Soken Inc Proportional solenoid
DE3218210A1 (de) * 1982-05-14 1983-11-17 Robert Bosch Gmbh, 7000 Stuttgart Vorrichtung zur steuerung mindestens eines drosselquerschnittes in einer steuerleitung
DE3801084A1 (de) * 1987-05-19 1988-12-08 Bosch Gmbh Robert Vorrichtung zur steuerung mindestens eines drosselquerschnittes an mindestens einer steueroeffnung
US4922604A (en) * 1989-03-13 1990-05-08 Pacific Scientific Company Method of fabricating an encapsulated motor
DE4019749A1 (de) * 1990-06-21 1992-01-09 Bosch Gmbh Robert Elektromagnetischer drehsteller

Also Published As

Publication number Publication date
DE3926912A1 (de) 1991-02-21
EP0591133A1 (fr) 1994-04-13
US5229671A (en) 1993-07-20
DE59007961D1 (de) 1995-01-19
AU639009B2 (en) 1993-07-15
KR920703988A (ko) 1992-12-18
AU6059990A (en) 1991-04-03
ES2065540T3 (es) 1995-02-16
KR0167356B1 (ko) 1998-12-15
JPH05500095A (ja) 1993-01-14
WO1991002894A1 (fr) 1991-03-07
BR9007595A (pt) 1992-06-30

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