JPS5690139A - Shock absorber - Google Patents

Shock absorber

Info

Publication number
JPS5690139A
JPS5690139A JP16606279A JP16606279A JPS5690139A JP S5690139 A JPS5690139 A JP S5690139A JP 16606279 A JP16606279 A JP 16606279A JP 16606279 A JP16606279 A JP 16606279A JP S5690139 A JPS5690139 A JP S5690139A
Authority
JP
Japan
Prior art keywords
fluid pressure
pressure chamber
vortex
valve
chamber
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
JP16606279A
Other languages
Japanese (ja)
Other versions
JPS597854B2 (en
Inventor
Naoto Fukushima
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.)
Nissan Motor Co Ltd
Original Assignee
Nissan Motor 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
Application filed by Nissan Motor Co Ltd filed Critical Nissan Motor Co Ltd
Priority to JP16606279A priority Critical patent/JPS597854B2/en
Priority to GB8006245A priority patent/GB2044882B/en
Priority to FR8004244A priority patent/FR2453323B1/en
Priority to DE19803007410 priority patent/DE3007410A1/en
Publication of JPS5690139A publication Critical patent/JPS5690139A/en
Publication of JPS597854B2 publication Critical patent/JPS597854B2/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32—Details
    • F16F9/34—Special valve constructions; Shape or construction of throttling passages
    • F16F9/344—Vortex flow passages

Abstract

PURPOSE:To prevent generation of negative pressure in the fluid pressure chamber of a shock absorber and obtain desired attenuation characteristics by providing the by-pass passage in the vortex valve with a check valve which passes only flow in the direction in which no attenuation force is generated. CONSTITUTION:During the expansion stroke of a piston 4, a vortex valve 5A moves upwards and consequently a plate 10, which receives fluid pressure as a check valve, is forced to contact to the upper bottom surface 6a of a valve body 6, blocking up by-pass passage 9 which allow a vortex flow chamber 7 and a fluid pressure chamber R2 to communicate with each other. Conversely, during the contraction stroke of the piston 4, the vortex valve 5A moves downwards. Consequently, the greater part of the fluid in a fluid pressure chamber R1 flows from the vortex flow chamber 7 into the by-pass passages 9 and enters the fluid pressure chamber R2, pushing up the plates 10. Thereby, the effect of resistance due to passages 8b is practically removed, so that generation of the negative pressure in the fluid pressure chamber R2 can be prevented.
JP16606279A 1979-02-27 1979-12-20 shock absorber Expired JPS597854B2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP16606279A JPS597854B2 (en) 1979-12-20 1979-12-20 shock absorber
GB8006245A GB2044882B (en) 1979-02-27 1980-02-25 Hydraulic shock absorber with vortex valve
FR8004244A FR2453323B1 (en) 1979-02-27 1980-02-26 SHOCK ABSORBER FOR VEHICLE
DE19803007410 DE3007410A1 (en) 1979-02-27 1980-02-27 HYDRAULIC SHOCK ABSORBER

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16606279A JPS597854B2 (en) 1979-12-20 1979-12-20 shock absorber

Publications (2)

Publication Number Publication Date
JPS5690139A true JPS5690139A (en) 1981-07-22
JPS597854B2 JPS597854B2 (en) 1984-02-21

Family

ID=15824261

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16606279A Expired JPS597854B2 (en) 1979-02-27 1979-12-20 shock absorber

Country Status (1)

Country Link
JP (1) JPS597854B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4475635A (en) * 1980-10-14 1984-10-09 Nissan Motor Company, Limited Vortex flow shock absorber with one-way valve
US4515252A (en) * 1982-05-31 1985-05-07 Nissan Motor Company, Limited Piston stroke responsive vortex-flow shock absorber
EP0995910A1 (en) * 1998-10-20 2000-04-26 Abb Research Ltd. Vortex valve

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6280654U (en) * 1985-11-08 1987-05-23

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4475635A (en) * 1980-10-14 1984-10-09 Nissan Motor Company, Limited Vortex flow shock absorber with one-way valve
US4515252A (en) * 1982-05-31 1985-05-07 Nissan Motor Company, Limited Piston stroke responsive vortex-flow shock absorber
EP0995910A1 (en) * 1998-10-20 2000-04-26 Abb Research Ltd. Vortex valve

Also Published As

Publication number Publication date
JPS597854B2 (en) 1984-02-21

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