GB1215474A - Hydraulic damping device - Google Patents

Hydraulic damping device

Info

Publication number
GB1215474A
GB1215474A GB5717067A GB5717067A GB1215474A GB 1215474 A GB1215474 A GB 1215474A GB 5717067 A GB5717067 A GB 5717067A GB 5717067 A GB5717067 A GB 5717067A GB 1215474 A GB1215474 A GB 1215474A
Authority
GB
United Kingdom
Prior art keywords
piston
rod
cylinder
fluid
air
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
GB5717067A
Inventor
John Rudolph Butorac
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.)
Enerpac Tool Group Corp
Original Assignee
Applied Power Industries Inc
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 Applied Power Industries Inc filed Critical Applied Power Industries Inc
Publication of GB1215474A publication Critical patent/GB1215474A/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
    • F16F9/06—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using both gas and liquid
    • F16F9/061—Mono-tubular units

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Fluid-Damping Devices (AREA)

Abstract

1,215,474. Dashpots. APPLIED POWER INDUSTRIES Inc. 15 Dec., 1967 [29 Dec., 1966], No. 57170/67. Heading F2S. [Also in Division B8] A damping device for an air actuated power unit, e.g. a jack, comprises a fluid filled chamber 11, a rod 19 and piston 31 connected to the power unit, the piston having a part 42 permitting fluid to pass therethrough, and a floating piston 34 beneath which atmospheric air or pressure air via tube 38 is supplied so that when the rod and piston 31 move outwardly from the cylinder the floating piston 34 moves in the same direction to prevent a vacuum being formed between the piston 31 and piston 34. The part 42 has a spring biased valve 36 therein such that it is open below a predetermined rate of withdrawal of the rod and piston 31 and closed at and above said rate, when fluid can only pass through the clearance between the piston 31 and the cylinder 11, and on inward movement of the rod and piston 31 said valve permits fluid to pass relatively freely through the port. The valve may consist merely of a ball 40 with no spring. Alternatively, fluid transfer may be only through the clearance between the piston and cylinder, Fig. 7 (not shown). The embodiment of Fig. 3 shows the device in use with an air jack. Air is pumped into the portion 60 causing the cylinder 62 to rise thus causing the rod and piston 31 to rise. Pressure air to the portion below piston 34 is bled from the portion 60.
GB5717067A 1966-12-29 1967-12-15 Hydraulic damping device Expired GB1215474A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US60588166A 1966-12-29 1966-12-29

Publications (1)

Publication Number Publication Date
GB1215474A true GB1215474A (en) 1970-12-09

Family

ID=24425582

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5717067A Expired GB1215474A (en) 1966-12-29 1967-12-15 Hydraulic damping device

Country Status (5)

Country Link
JP (1) JPS4815036Y1 (en)
DE (1) DE1531315B1 (en)
FR (1) FR1552340A (en)
GB (1) GB1215474A (en)
NL (1) NL6717802A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111120455A (en) * 2019-12-24 2020-05-08 安徽博微联控科技有限公司 Quick-insertion and time-delay separation device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114033825A (en) * 2021-12-02 2022-02-11 深圳市铭昊五金模具有限公司 Nitrogen spring with self-lubricating function

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1049720B (en) * 1959-01-29 Karlstadt/M Karl M Mayer Air suspension for vehicles combined with a hydraulic shock absorber
FR662053A (en) * 1928-10-12 1929-08-02 Automatic clutch specially for motor cars, etc.
US2490284A (en) * 1945-09-04 1949-12-06 Simart Marshall Hydraulic jack
FR1056323A (en) * 1952-02-19 1954-02-25 Variable brake shock absorber for motor vehicles
FR1095276A (en) * 1954-03-13 1955-05-31 Telescopic shock absorber with external adjustment
US2874933A (en) * 1955-03-16 1959-02-24 Cleveland Rock Drill Division Power actuated pin puller
FR1147649A (en) * 1956-04-11 1957-11-27 Mecanique Et Roulements Sa Improvements to liquid shock absorbers
FR1168527A (en) * 1957-01-30 1958-12-09 Differential hydraulic shock absorber
DE1056946B (en) * 1958-01-11 1959-05-06 Boge Gmbh Single tube telescopic vibration damper, especially for motor vehicles
DE1181074B (en) * 1959-06-20 1964-11-05 Stabilus Ind Und Handelsgesell Telescopic fluid shock absorbers, especially for motor vehicles
US3042006A (en) * 1960-11-14 1962-07-03 Applied Power Ind Inc Fluid pressure actuated power unit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111120455A (en) * 2019-12-24 2020-05-08 安徽博微联控科技有限公司 Quick-insertion and time-delay separation device
CN111120455B (en) * 2019-12-24 2024-04-30 安徽博微联控科技有限公司 Quick inserting and time-delay separating device

Also Published As

Publication number Publication date
FR1552340A (en) 1969-01-03
DE1531315B1 (en) 1973-05-30
JPS4815036Y1 (en) 1973-04-25
NL6717802A (en) 1968-07-01

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