FR2530571B1 - Dispositif de cylindre et piston, engrenage de direction assistee utilisant ce dispositif et procede de fabrication d'un piston pour ce dispositif - Google Patents

Dispositif de cylindre et piston, engrenage de direction assistee utilisant ce dispositif et procede de fabrication d'un piston pour ce dispositif

Info

Publication number
FR2530571B1
FR2530571B1 FR8311905A FR8311905A FR2530571B1 FR 2530571 B1 FR2530571 B1 FR 2530571B1 FR 8311905 A FR8311905 A FR 8311905A FR 8311905 A FR8311905 A FR 8311905A FR 2530571 B1 FR2530571 B1 FR 2530571B1
Authority
FR
France
Prior art keywords
same
piston
cylinder
manufacturing
power steering
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
Application number
FR8311905A
Other languages
English (en)
Other versions
FR2530571A1 (fr
Inventor
Alan Graham Wilson
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.)
TRW Steering Systems Ltd
Original Assignee
TRW Steering Systems Ltd
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 TRW Steering Systems Ltd filed Critical TRW Steering Systems Ltd
Publication of FR2530571A1 publication Critical patent/FR2530571A1/fr
Application granted granted Critical
Publication of FR2530571B1 publication Critical patent/FR2530571B1/fr
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D5/00—Power-assisted or power-driven steering
    • B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
    • B62D5/20—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle specially adapted for particular type of steering gear or particular application
    • B62D5/22—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle specially adapted for particular type of steering gear or particular application for rack-and-pinion type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K1/00—Making machine elements
    • B21K1/76—Making machine elements elements not mentioned in one of the preceding groups
    • B21K1/767—Toothed racks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K1/00—Making machine elements
    • B21K1/76—Making machine elements elements not mentioned in one of the preceding groups
    • B21K1/767—Toothed racks
    • B21K1/768—Toothed racks hollow
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J1/00—Pistons; Trunk pistons; Plungers

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Actuator (AREA)
FR8311905A 1982-07-21 1983-07-19 Dispositif de cylindre et piston, engrenage de direction assistee utilisant ce dispositif et procede de fabrication d'un piston pour ce dispositif Expired FR2530571B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08221106A GB2124935B (en) 1982-07-21 1982-07-21 A piston and cylinder assembly a power assisted steering gear which includes such an assembly and a method of forming a piston for such an assembly

Publications (2)

Publication Number Publication Date
FR2530571A1 FR2530571A1 (fr) 1984-01-27
FR2530571B1 true FR2530571B1 (fr) 1986-09-12

Family

ID=10531810

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8311905A Expired FR2530571B1 (fr) 1982-07-21 1983-07-19 Dispositif de cylindre et piston, engrenage de direction assistee utilisant ce dispositif et procede de fabrication d'un piston pour ce dispositif

Country Status (5)

Country Link
US (1) US4573399A (fr)
DE (1) DE3324035A1 (fr)
FR (1) FR2530571B1 (fr)
GB (1) GB2124935B (fr)
IT (1) IT1162921B (fr)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2176160B (en) * 1985-06-10 1988-10-19 Trw Cam Gears Ltd A power assisted steering system
DE4102264C2 (de) * 1991-01-26 2003-03-27 Continental Teves Ag & Co Ohg Hydraulische Servolenkung für Kraftfahrzeuge
FR2690122B1 (fr) * 1992-04-17 1997-12-19 Peugeot Ensemble de cremaillere de direction assistee pour vehicule automobile.
DE4216111A1 (de) * 1992-05-15 1993-11-18 Teves Gmbh Alfred Kolben-Zahnstangen-Einheit, z. B. für eine hydraulische Servolenkung und Verfahren zu deren Herstellung
US5890394A (en) * 1996-11-08 1999-04-06 Ford Motor Company Hollow steering gear rack with integral air grooves
US6000267A (en) * 1997-02-25 1999-12-14 Koyo Seiko Co., Ltd. Process for fabrication of rack shaft and fabrication machine therefor
DE19726697A1 (de) * 1997-06-24 1999-01-07 Zahnradfabrik Friedrichshafen Verfahren zum Herstellen einer Zahnstange
EP0897767A1 (fr) * 1997-08-19 1999-02-24 Trw Inc. Crémaillère et procédé pour sa fabrication
JP2001114114A (ja) * 1999-10-14 2001-04-24 Toyota Motor Corp ラックバー
BR0003428A (pt) * 2000-07-28 2004-06-08 Dana Ind S A Articulação esférica com sistema de equalização de pressão
CN100364832C (zh) * 2003-09-23 2008-01-30 毕晓普创新有限公司 复合式转向齿条及其制造方法
JP4671221B2 (ja) 2005-03-14 2011-04-13 東洋精器株式会社 ギヤ転造装置
JP6408819B2 (ja) * 2014-07-28 2018-10-17 高周波熱錬株式会社 中空ラックバーの製造方法
EP3680516B1 (fr) * 2017-09-07 2023-08-02 NSK Ltd. Procédé de fabrication de crémaillère métallique

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2820433A (en) * 1951-07-02 1958-01-21 Atlas Copco Ab Hammer pistons for percussion machine and tools
FR1212468A (fr) * 1958-10-17 1960-03-24 Applic Mach Motrices Joint d'étanchéité coulissant
FR1269433A (fr) * 1960-08-18 1961-08-11 Teddington Aircraft Controls L Procédé de fabrication de soufflets métalliques flexibles renforcés et soufflet conforme à celui obtenu à l'aide du procédé ou procédé similaire
US3150570A (en) * 1963-05-14 1964-09-29 American Mach & Foundry Piston
DE2431654A1 (de) * 1974-07-02 1976-01-22 Festo Maschf Stoll G Arbeitszylinder fuer pneumatische und hydraulische medien
US3951045A (en) * 1974-09-09 1976-04-20 General Motors Corporation Power assisted rack and pinion steering gear
FR2369027A1 (fr) * 1976-10-29 1978-05-26 Tubes Cie Indle Cale Piece tubulaire dont les diametres et les epaisseurs ne sont pas constants sur toute leur longueu
DE2653868A1 (de) * 1976-11-26 1978-06-01 Linde Ag Hohlkolben fuer eine hydrostatische kolbenmaschine und verfahren zu dessen herstellung
GB2026908B (en) * 1978-07-31 1982-11-10 Bishop A E Method of making sterring racks
US4246833A (en) * 1978-12-29 1981-01-27 The United States Of America As Represented By The Secretary Of The Navy High pressure spherical piston
US4351228A (en) * 1980-07-02 1982-09-28 General Motors Corporation Power assist rack and pinion steering gear

Also Published As

Publication number Publication date
GB2124935B (en) 1985-08-14
US4573399A (en) 1986-03-04
IT1162921B (it) 1987-04-01
FR2530571A1 (fr) 1984-01-27
GB2124935A (en) 1984-02-29
DE3324035A1 (de) 1984-01-26
IT8367785A0 (it) 1983-07-20

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Legal Events

Date Code Title Description
CD Change of name or company name
DL Decision of the director general to leave to make available licences of right
ST Notification of lapse