GB664770A - Improvements in hydraulic shock absorbers - Google Patents

Improvements in hydraulic shock absorbers

Info

Publication number
GB664770A
GB664770A GB868149A GB868149A GB664770A GB 664770 A GB664770 A GB 664770A GB 868149 A GB868149 A GB 868149A GB 868149 A GB868149 A GB 868149A GB 664770 A GB664770 A GB 664770A
Authority
GB
Grant status
Application
Patent type
Prior art keywords
valve
piston
port
ports
shown
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
GB868149A
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.)
WOODHEAD MONROE Ltd
Original Assignee
WOODHEAD MONROE 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

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
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32Details
    • F16F9/44Means on or in the damper for manual or non-automatic adjustment; such means combined with temperature correction
    • F16F9/46Means on or in the damper for manual or non-automatic adjustment; such means combined with temperature correction allowing control from a distance, i.e. location of means for control input being remote from site of valves, e.g. on damper external wall

Abstract

664,770. Hydraulic shock - absorbers. WOODHEAD - MONROE, Ltd., and ONIONS, J. W. May 17, 1950 [March 30, 1949], No. 8681/49. Class 108(iii) In a direct-acting hydraulic shock absorber, the valve of a valve-controlled auxiliary or byepass port within the hollow piston rod is adapted to be operated by an electro-magnet, which is carried by the piston rod and is adapted to be energized by connection to an electric circuit and remote operating switch. In the construction shown in Fig. 1 (Comp.), an inverted cup-shaped valve 50 controls flow between ports 58 and 59 in an extension 57 of the piston rod 53. The ports 58 open into the cylinder space above the piston (not shown), while the port 59 leads via a non- return valve 60 to the cylinder space below the piston. Within the piston rod 53 is a soft iron core 54 surrounded by a solenoid 54a the leads of which (not shown) extend through the end cap and securing ring of the shock absorber, and are connected with a suitable electrical circuit which includes a switch operable by the driver. The solenoid is retained by a bronze gland 56. The valve 50 may be downwardly loaded by a light spring (not shown). In operation the passages 59, 58 (when the solenoid 55 is energized to raise the valve 50 )provide a byepass flow on extension of the shock absorber additional to the normal damping action of a conventional valve assembly of the piston. In the construction shown in Fig. 1 (Prov.) a needle valve 13 controls flow between ports 14 and 15 leading between the upper and lower faces of the piston (not shown). The valve 13 is slidably mounted in a bronze bush 22 and has a soft iron head which co-operates with an electromagnet 12. The latter is supported by a flexible waxed ring 20 and a bronze sleeve 19. In the construction shown in Figs. 4, 5 flow between upper ,and lower faces of the piston is controlled by a rotary valve, Fig. 5 comprising a spindle 30 within the hollow piston rod 31 having an arcuate port 37 which cooperates with ports 36 opening above the piston. The port 37 is connected at 38 with a concentric port 39 which opens via a non-return ball valve, below the piston. The upper end of the spindle 30 carries a plurality of radially-disposed electromagnets 35 which function in the manner of a cogging motor. By the operation of a driver-controlled switch the spindle 30 may be rotated to connect selectively one or more of the ports 36 with the port 37.
GB868149A 1949-03-30 1949-03-30 Improvements in hydraulic shock absorbers Expired GB664770A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB868149A GB664770A (en) 1949-03-30 1949-03-30 Improvements in hydraulic shock absorbers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB868149A GB664770A (en) 1949-03-30 1949-03-30 Improvements in hydraulic shock absorbers

Publications (1)

Publication Number Publication Date
GB664770A true true GB664770A (en) 1952-01-09

Family

ID=9857174

Family Applications (1)

Application Number Title Priority Date Filing Date
GB868149A Expired GB664770A (en) 1949-03-30 1949-03-30 Improvements in hydraulic shock absorbers

Country Status (1)

Country Link
GB (1) GB664770A (en)

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2855075A (en) * 1956-11-08 1958-10-07 Ernest E Lowber Shock absorber with electric valve
US3039566A (en) * 1960-01-29 1962-06-19 Houdaille Industries Inc Linear hydraulic shock absorber
US3290036A (en) * 1963-07-05 1966-12-06 Ruf Walter Device for suspension and shock absorption in vehicles
DE3304833A1 (en) * 1982-02-13 1983-08-25 Atsugi Motor Parts Co Ltd Stossdaempfer variable daempfungwirkung
US4491207A (en) * 1983-07-15 1985-01-01 Lord Corporation Fluid control means for vehicle suspension system
GB2158184A (en) * 1984-05-03 1985-11-06 Armstrong Patents Co Ltd Hydraulic shock absorber with electromagnetically controlled valve
GB2164723A (en) * 1984-09-22 1986-03-26 Boge Gmbh Adjustable hydraulic dampers and damping valves therefor
FR2574888A1 (en) * 1984-12-18 1986-06-20 Fichtel & Sachs Ag Vibration damper has variable damping
US4726453A (en) * 1983-04-11 1988-02-23 F & O Elektronik Systems Gmbh & Co. Self-adjusting single- or twin-tube shock absorber
EP0285909A1 (en) * 1987-04-01 1988-10-12 Robert Bosch Gmbh Shock absorber
EP0288736A2 (en) * 1987-04-01 1988-11-02 Robert Bosch Gmbh Shock absorber I
US4800994A (en) * 1983-09-20 1989-01-31 Tokico Ltd. Hydraulic damper of adjustable damping force type
EP0328843A1 (en) * 1988-02-15 1989-08-23 Bendix Espana, S.A. Variable rate shock absorber
DE3805934A1 (en) * 1988-02-25 1989-09-07 Bosch Gmbh Robert hydraulic shock absorber
US4867475A (en) * 1988-02-16 1989-09-19 Monroe Auto Equipment Company Method and apparatus for controlling shock absorbers
US4890858A (en) * 1988-02-16 1990-01-02 Monroe Auto Equipment Company Method and apparatus for controlling shock absorbers
US4923038A (en) 1986-06-05 1990-05-08 Lizell Magnus B Method and apparatus for absorbing mechanical shock
US4943083A (en) * 1989-03-13 1990-07-24 Monroe Auto Equipment Company Signal conditioning circuit assembly
US5123671A (en) * 1989-03-13 1992-06-23 Monroe Auto Equipment Company Method and apparatus for controlling shock absorbers
US5152379A (en) * 1990-04-16 1992-10-06 Monroe Auto Equipment Company Adjustable shock absorber assembly
US5217095A (en) 1986-06-05 1993-06-08 Monroe Auto Equipment Company Method and apparatus for absorbing mechanical shock
WO2006006847A3 (en) * 2004-07-08 2006-03-09 Wp Suspension B V Shock absorber with electronic adjustment

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2855075A (en) * 1956-11-08 1958-10-07 Ernest E Lowber Shock absorber with electric valve
US3039566A (en) * 1960-01-29 1962-06-19 Houdaille Industries Inc Linear hydraulic shock absorber
US3290036A (en) * 1963-07-05 1966-12-06 Ruf Walter Device for suspension and shock absorption in vehicles
US4527676A (en) * 1982-02-13 1985-07-09 Atsugi Motor Parts Co., Ltd. Variable-damping-force shock absorber
DE3304833A1 (en) * 1982-02-13 1983-08-25 Atsugi Motor Parts Co Ltd Stossdaempfer variable daempfungwirkung
GB2119473A (en) * 1982-02-13 1983-11-16 Atsugi Motor Parts Co Ltd Adjusting fluid dampers
US4726453A (en) * 1983-04-11 1988-02-23 F & O Elektronik Systems Gmbh & Co. Self-adjusting single- or twin-tube shock absorber
US4491207A (en) * 1983-07-15 1985-01-01 Lord Corporation Fluid control means for vehicle suspension system
US4800994A (en) * 1983-09-20 1989-01-31 Tokico Ltd. Hydraulic damper of adjustable damping force type
GB2158184A (en) * 1984-05-03 1985-11-06 Armstrong Patents Co Ltd Hydraulic shock absorber with electromagnetically controlled valve
GB2164723A (en) * 1984-09-22 1986-03-26 Boge Gmbh Adjustable hydraulic dampers and damping valves therefor
FR2574888A1 (en) * 1984-12-18 1986-06-20 Fichtel & Sachs Ag Vibration damper has variable damping
US4923038A (en) 1986-06-05 1990-05-08 Lizell Magnus B Method and apparatus for absorbing mechanical shock
US5217095A (en) 1986-06-05 1993-06-08 Monroe Auto Equipment Company Method and apparatus for absorbing mechanical shock
US5025899A (en) 1986-06-05 1991-06-25 Lizell Magnus B Method and apparatus for absorbing mechanical shock
EP0288736A2 (en) * 1987-04-01 1988-11-02 Robert Bosch Gmbh Shock absorber I
EP0285909A1 (en) * 1987-04-01 1988-10-12 Robert Bosch Gmbh Shock absorber
EP0288736A3 (en) * 1987-04-01 1989-01-18 Robert Bosch Gmbh Shock absorber i
EP0328843A1 (en) * 1988-02-15 1989-08-23 Bendix Espana, S.A. Variable rate shock absorber
US5027927A (en) * 1988-02-15 1991-07-02 Bendix Espana S.A. Variable rate shock absorber
US4890858A (en) * 1988-02-16 1990-01-02 Monroe Auto Equipment Company Method and apparatus for controlling shock absorbers
US4867475A (en) * 1988-02-16 1989-09-19 Monroe Auto Equipment Company Method and apparatus for controlling shock absorbers
DE3805934A1 (en) * 1988-02-25 1989-09-07 Bosch Gmbh Robert hydraulic shock absorber
US4943083A (en) * 1989-03-13 1990-07-24 Monroe Auto Equipment Company Signal conditioning circuit assembly
US5123671A (en) * 1989-03-13 1992-06-23 Monroe Auto Equipment Company Method and apparatus for controlling shock absorbers
US5152379A (en) * 1990-04-16 1992-10-06 Monroe Auto Equipment Company Adjustable shock absorber assembly
WO2006006847A3 (en) * 2004-07-08 2006-03-09 Wp Suspension B V Shock absorber with electronic adjustment

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