DE3211095A1 - Hydraulic belt tensioner - Google Patents

Hydraulic belt tensioner

Info

Publication number
DE3211095A1
DE3211095A1 DE19823211095 DE3211095A DE3211095A1 DE 3211095 A1 DE3211095 A1 DE 3211095A1 DE 19823211095 DE19823211095 DE 19823211095 DE 3211095 A DE3211095 A DE 3211095A DE 3211095 A1 DE3211095 A1 DE 3211095A1
Authority
DE
Germany
Prior art keywords
piston
pressure chamber
belt tensioner
belt
return spring
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.)
Ceased
Application number
DE19823211095
Other languages
German (de)
Inventor
Hisashi Kodama
Yoshio Okabe
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.)
Aisin Seiki Co Ltd
Original Assignee
Aisin Seiki Co 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
Priority to JP4333181U priority Critical patent/JPS57155350U/ja
Application filed by Aisin Seiki Co Ltd filed Critical Aisin Seiki Co Ltd
Publication of DE3211095A1 publication Critical patent/DE3211095A1/en
Ceased legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H7/00Gearings for conveying rotary motion by endless flexible members
    • F16H7/08Means for varying tension of belts, ropes, or chains
    • F16H7/0848Means for varying tension of belts, ropes, or chains with means for impeding reverse motion
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H7/00Gearings for conveying rotary motion by endless flexible members
    • F16H7/08Means for varying tension of belts, ropes, or chains
    • F16H7/0848Means for varying tension of belts, ropes, or chains with means for impeding reverse motion
    • F16H2007/0859Check valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H7/00Gearings for conveying rotary motion by endless flexible members
    • F16H7/08Means for varying tension of belts, ropes, or chains
    • F16H2007/0889Path of movement of the finally actuated member
    • F16H2007/0891Linear path
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H7/00Gearings for conveying rotary motion by endless flexible members
    • F16H7/08Means for varying tension of belts, ropes, or chains
    • F16H7/0829Means for varying tension of belts, ropes, or chains with vibration damping means

Abstract

The belt tensioner comprises a lever pressed against a belt and a hydraulic jack with a piston pressed against the lever by a return spring. Formed between the piston and its housing is a pressure chamber in which there is hydraulic fluid. In the case of an upward movement of the piston in the direction of the force of the return spring, a nonreturn valve opens the connection between the pressure chamber and a reservoir chamber in the piston. In the case of a downward movement of the piston, the hydraulic fluid can only escape from the pressure chamber along a highly restricted leakage path. When the idle strand against which the belt tensioner rests becomes the working strand during operation, the jack yields only gradually, allowing this changeover of the belt drive to take place without a delay.
DE19823211095 1981-03-26 1982-03-25 Hydraulic belt tensioner Ceased DE3211095A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4333181U JPS57155350U (en) 1981-03-26 1981-03-26

Publications (1)

Publication Number Publication Date
DE3211095A1 true DE3211095A1 (en) 1982-10-21

Family

ID=12660842

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19823211095 Ceased DE3211095A1 (en) 1981-03-26 1982-03-25 Hydraulic belt tensioner

Country Status (2)

Country Link
JP (1) JPS57155350U (en)
DE (1) DE3211095A1 (en)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0212119A2 (en) * 1985-08-30 1987-03-04 Tsubakimoto Chain Co. Tensioner for toothed drive belts
DE8710548U1 (en) * 1987-07-31 1987-12-23 Schroeder, Werner, 8157 Dietramszell, De
US4741299A (en) * 1985-01-26 1988-05-03 Honda Giken Kogyo Kabushiki Kaisha Internal combustion engine
US4743225A (en) * 1984-08-29 1988-05-10 Aisin Seiki Kabushiki Kaisha Auto-tensioner for timing-belt
DE3737629A1 (en) * 1986-11-06 1988-06-09 Aisin Seiki Automatic tensioning device with a free piston
EP0289814A1 (en) * 1987-05-06 1988-11-09 INA Wälzlager Schaeffler KG Hydraulic tensioner
DE3801290C1 (en) * 1988-01-19 1989-07-20 Bayerische Motoren Werke Ag, 8000 Muenchen, De Tensioning device for a chain or belt drive
DE4426329A1 (en) * 1993-07-23 1995-01-26 Nsk Ltd Damper device for an automatic tensioning element
EP0646736A2 (en) * 1993-10-01 1995-04-05 Gustav Wahler GmbH u. Co Activation device for tensioning mechanism
DE4426845A1 (en) * 1993-07-28 1995-04-06 Nsk Ltd Damping device for an automatic tensioning element
DE4406410A1 (en) * 1994-02-28 1995-08-31 Schaeffler Waelzlager Kg Hydraulic tensioning device for belt or chain drive
US6685587B2 (en) * 2000-09-13 2004-02-03 Borgwarner Inc. Hydraulic chain tensioner with no-return device for the piston
CN105422767A (en) * 2015-12-28 2016-03-23 辽宁工业大学 Chain tensioner based on cam, and control method thereof

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6329965Y2 (en) * 1985-08-30 1988-08-11
JP2511864Y2 (en) * 1989-10-27 1996-09-25 エヌティエヌ株式会社 Auto tensioner

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE512036A (en) *
DE1550905A1 (en) * 1966-10-01 1969-07-17 Porsche Kg Selbsttaetiges hydraulic adjusting member for clamping of traction elements, in particular for the camshaft drive chain of an internal combustion engine
FR2350518A1 (en) * 1976-05-05 1977-12-02 Citroen Sa Transmission chain tensioning device - has shoe held against chain by piston which houses fluid non-return valve and acts through rocking beam

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH019693Y2 (en) * 1981-09-04 1989-03-17

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE512036A (en) *
DE1550905A1 (en) * 1966-10-01 1969-07-17 Porsche Kg Selbsttaetiges hydraulic adjusting member for clamping of traction elements, in particular for the camshaft drive chain of an internal combustion engine
FR2350518A1 (en) * 1976-05-05 1977-12-02 Citroen Sa Transmission chain tensioning device - has shoe held against chain by piston which houses fluid non-return valve and acts through rocking beam

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4743225A (en) * 1984-08-29 1988-05-10 Aisin Seiki Kabushiki Kaisha Auto-tensioner for timing-belt
US4741299A (en) * 1985-01-26 1988-05-03 Honda Giken Kogyo Kabushiki Kaisha Internal combustion engine
EP0212119A2 (en) * 1985-08-30 1987-03-04 Tsubakimoto Chain Co. Tensioner for toothed drive belts
EP0212119A3 (en) * 1985-08-30 1988-03-02 Tsubakimoto Chain Co. Tensioner for toothed drive belts
DE3737629A1 (en) * 1986-11-06 1988-06-09 Aisin Seiki Automatic tensioning device with a free piston
EP0289814A1 (en) * 1987-05-06 1988-11-09 INA Wälzlager Schaeffler KG Hydraulic tensioner
US4997410A (en) * 1987-05-06 1991-03-05 Ina Walzlager Schaeffler Kg Hydraulic tightening apparatus
US4976660A (en) * 1987-07-31 1990-12-11 Ina Walzlager Schaeffler Kg Apparatus for tensioning V-belts, especially for automotive vehicles
DE8710548U1 (en) * 1987-07-31 1987-12-23 Schroeder, Werner, 8157 Dietramszell, De
EP0329738B1 (en) * 1987-07-31 1992-04-22 INA Wälzlager Schaeffler KG Tensioning device for v-belts, in particular for motor vehicles
DE3801290C1 (en) * 1988-01-19 1989-07-20 Bayerische Motoren Werke Ag, 8000 Muenchen, De Tensioning device for a chain or belt drive
DE4426329A1 (en) * 1993-07-23 1995-01-26 Nsk Ltd Damper device for an automatic tensioning element
DE4426845A1 (en) * 1993-07-28 1995-04-06 Nsk Ltd Damping device for an automatic tensioning element
EP0646736A2 (en) * 1993-10-01 1995-04-05 Gustav Wahler GmbH u. Co Activation device for tensioning mechanism
EP0646736A3 (en) * 1993-10-01 1995-07-05 Wahler Gmbh & Co Gustav Activation device for tensioning mechanism.
DE4406410A1 (en) * 1994-02-28 1995-08-31 Schaeffler Waelzlager Kg Hydraulic tensioning device for belt or chain drive
US6685587B2 (en) * 2000-09-13 2004-02-03 Borgwarner Inc. Hydraulic chain tensioner with no-return device for the piston
CN105422767A (en) * 2015-12-28 2016-03-23 辽宁工业大学 Chain tensioner based on cam, and control method thereof

Also Published As

Publication number Publication date
JPS57155350U (en) 1982-09-29

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Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
8131 Rejection