GB9306982D0 - Improvements in and relating to check valve assemblies - Google Patents

Improvements in and relating to check valve assemblies

Info

Publication number
GB9306982D0
GB9306982D0 GB939306982A GB9306982A GB9306982D0 GB 9306982 D0 GB9306982 D0 GB 9306982D0 GB 939306982 A GB939306982 A GB 939306982A GB 9306982 A GB9306982 A GB 9306982A GB 9306982 D0 GB9306982 D0 GB 9306982D0
Authority
GB
United Kingdom
Prior art keywords
relating
check valve
valve assemblies
assemblies
check
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
GB939306982A
Other versions
GB2266133B (en
GB2266133A (en
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.)
Hitachi Unisia Automotive Ltd
Original Assignee
Atsugi Unisia Corp
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 claimed from JP29838889A external-priority patent/JP2918257B2/en
Priority claimed from JP1322899A external-priority patent/JP2742457B2/en
Priority claimed from JP32289889A external-priority patent/JP2918258B2/en
Priority claimed from GB9024880A external-priority patent/GB2238843B/en
Application filed by Atsugi Unisia Corp filed Critical Atsugi Unisia Corp
Publication of GB9306982D0 publication Critical patent/GB9306982D0/en
Publication of GB2266133A publication Critical patent/GB2266133A/en
Application granted granted Critical
Publication of GB2266133B publication Critical patent/GB2266133B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • F16F9/50—Special means providing automatic damping adjustment, i.e. self-adjustment of damping by particular sliding movements of a valve element, other than flexions or displacement of valve discs; Special means providing self-adjustment of spring characteristics
    • F16F9/512—Means responsive to load action, i.e. static load on the damper or dynamic fluid pressure changes in the damper, e.g. due to changes in velocity
    • F16F9/5126—Piston, or piston-like valve elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
    • B60G17/06—Characteristics of dampers, e.g. mechanical dampers
    • B60G17/08—Characteristics of fluid dampers
    • 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
    • F16F9/348—Throttling passages in the form of annular discs or other plate-like elements which may or may not have a spring action, operating in opposite directions or singly, e.g. annular discs positioned on top of the valve or piston body
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2202/00—Indexing codes relating to the type of spring, damper or actuator
    • B60G2202/20—Type of damper
    • B60G2202/24—Fluid damper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2400/00—Indexing codes relating to detected, measured or calculated conditions or factors
    • B60G2400/90—Other conditions or factors
    • B60G2400/91—Frequency
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2500/00—Indexing codes relating to the regulated action or device
    • B60G2500/10—Damping action or damper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2600/00—Indexing codes relating to particular elements, systems or processes used on suspension systems or suspension control systems
    • B60G2600/18—Automatic control means

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Fluid-Damping Devices (AREA)
GB9306982A 1989-11-16 1993-04-02 Improvements in and relating to check valve assemblies Expired - Fee Related GB2266133B (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP29838889A JP2918257B2 (en) 1989-11-16 1989-11-16 Variable damping force type shock absorber
JP1322899A JP2742457B2 (en) 1989-12-12 1989-12-12 Check valve structure
JP32289889A JP2918258B2 (en) 1989-12-12 1989-12-12 Variable damping force type shock absorber
GB9024880A GB2238843B (en) 1989-11-16 1990-11-15 Improvements in and relating to shock absorbers

Publications (3)

Publication Number Publication Date
GB9306982D0 true GB9306982D0 (en) 1993-05-26
GB2266133A GB2266133A (en) 1993-10-20
GB2266133B GB2266133B (en) 1994-03-09

Family

ID=27450581

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9306982A Expired - Fee Related GB2266133B (en) 1989-11-16 1993-04-02 Improvements in and relating to check valve assemblies

Country Status (1)

Country Link
GB (1) GB2266133B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2346427B (en) * 1996-03-20 2000-09-27 Monroe Auto Equipment Co Flexing disc-blow off assembly for use in a shock absorber
DE19951538A1 (en) * 1998-10-26 2000-04-27 Tenneco Automotive Inc Shock absorber, for absorbing shock force in a motor vehicle, uses a piston rod fixed to a lockout piston and a flexible valve to allow the fluid to drain off through the shock absorber to equalize the pressure
DE20001004U1 (en) * 2000-01-21 2000-05-04 Sanivac Vakuumtechnik Gmbh Check valve for an indirectly controlled solenoid valve
GB2461892A (en) * 2008-07-16 2010-01-20 Univ Sheffield A damper for a mountain bike
US9239092B2 (en) * 2013-08-26 2016-01-19 Tenneco Automotive Operating Company Inc. Shock absorber with frequency dependent passive valve
CN106536965B (en) * 2014-07-25 2020-01-17 日立汽车系统美国有限公司 Shock absorber
RU2687327C1 (en) * 2017-11-27 2019-05-13 Общество с ограниченной ответственностью "Компания Демпферсервис" Hydraulic damper

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4823221B1 (en) * 1964-01-07 1973-07-12
GB1155750A (en) * 1966-11-14 1969-06-18 Moulton Development Ltd Damper Valve
NL175456C (en) * 1980-10-08 1984-11-01 Itt VALVE WITH ADJUSTABLE THRUST FOR A SHOCK ABSORBER.
GB2122305B (en) * 1982-04-10 1987-02-18 Tokico Ltd Fluid spring or damper with slidable piston

Also Published As

Publication number Publication date
GB2266133B (en) 1994-03-09
GB2266133A (en) 1993-10-20

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19991115