DE3560756D1 - Single acting pneumatic cylinder - Google Patents

Single acting pneumatic cylinder

Info

Publication number
DE3560756D1
DE3560756D1 DE8585108121T DE3560756T DE3560756D1 DE 3560756 D1 DE3560756 D1 DE 3560756D1 DE 8585108121 T DE8585108121 T DE 8585108121T DE 3560756 T DE3560756 T DE 3560756T DE 3560756 D1 DE3560756 D1 DE 3560756D1
Authority
DE
Germany
Prior art keywords
piston
pneumatic cylinder
piston rod
primary chamber
annular gap
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
DE8585108121T
Other languages
German (de)
Inventor
Alf Siebke
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.)
Knorr Bremse Systeme fuer Nutzfahrzeuge GmbH
Original Assignee
Knorr Bremse AG
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 Knorr Bremse AG filed Critical Knorr Bremse AG
Priority to DE8585108121T priority Critical patent/DE3560756D1/en
Application granted granted Critical
Publication of DE3560756D1 publication Critical patent/DE3560756D1/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08—Characterised by the construction of the motor unit
    • F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
    • F15B15/1423—Component parts; Constructional details
    • F15B15/148—Lost-motion means between the piston and the output
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08—Characterised by the construction of the motor unit
    • F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
    • F15B15/149—Fluid interconnections, e.g. fluid connectors, passages

Abstract

1. Single-acting pneumatic cylinder with spring reset, with a piston (3) which is guided and sealed in the housing (1), said piston (3), together with the housing (1) constiting a primary chamber (13), being capable of being pressurized with compressed air, and a secondary chamber (19), communicating with the atmosphere by means of a one-way valve arrangement, the piston (3) being displaceable on the piston rod (5) between two stops (15, 16), situated on the latter, and an annular gap (23) being provided between the piston (3) and the piston rod (5), connecting the primary chamber (13) with the secondary chamber (19), such that a valve means (11, 17), provided at the piston (3) releases the annular gap (23), while the pneumatic cylinder is in its rest position, the piston (3) being applied to one stop (16), and shuts off the annular gap (23), when the primary chamber (13) is pressurized, with the consequent displacement of the piston (3) against the force of the return spring (7) toward the other stop (15), wherein the valve means consists of sealing ring (11) situated in the piston rod passage of the piston (3) and a recess (17) in the piston rod (5), the sealing ring (11), while the pneumatic cylinder is in its rest pisition, being flush with the recess (17), thus releasing the communication between the primary chamber (13) and the secondary chamber (19) and producing sealing effect in conjunction with the piston rod (5), when the piston (3) is displaced on the latter.
DE8585108121T 1984-08-31 1985-07-01 Single acting pneumatic cylinder Expired DE3560756D1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE8585108121T DE3560756D1 (en) 1984-08-31 1985-07-01 Single acting pneumatic cylinder

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8425821 1984-08-31
DE8585108121T DE3560756D1 (en) 1984-08-31 1985-07-01 Single acting pneumatic cylinder

Publications (1)

Publication Number Publication Date
DE3560756D1 true DE3560756D1 (en) 1987-11-12

Family

ID=6770307

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8585108121T Expired DE3560756D1 (en) 1984-08-31 1985-07-01 Single acting pneumatic cylinder

Country Status (3)

Country Link
EP (1) EP0173028B1 (en)
AT (1) ATE30181T1 (en)
DE (1) DE3560756D1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103452944B (en) * 2013-08-23 2016-04-06 浙江亿太诺气动科技有限公司 A kind of vehicle-mounted single-acting cylinder

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2448062A1 (en) * 1979-01-30 1980-08-29 Virax Sa Safety feature for hydraulic ram - has seal displaced at end of stroke permitting hydraulic fluid to pass it
DE2904805C2 (en) * 1979-02-08 1987-03-26 Schröder, Werner, 8157 Dietramszell Compressed air driven working cylinder
DE3205843A1 (en) * 1982-02-18 1983-08-25 Knorr-Bremse GmbH, 8000 München Venting device for a compressed-air cylinder

Also Published As

Publication number Publication date
ATE30181T1 (en) 1987-10-15
EP0173028B1 (en) 1987-10-07
EP0173028A1 (en) 1986-03-05

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: KNORR-BREMSE SYSTEME FUER NUTZFAHRZEUGE GMBH, 8080

8339 Ceased/non-payment of the annual fee