SE7711470L - CONTROL DEVICE FOR A PNEUMATIC OR HYDRAULIC PRESSURE MEDIUM - Google Patents

CONTROL DEVICE FOR A PNEUMATIC OR HYDRAULIC PRESSURE MEDIUM

Info

Publication number
SE7711470L
SE7711470L SE7711470A SE7711470A SE7711470L SE 7711470 L SE7711470 L SE 7711470L SE 7711470 A SE7711470 A SE 7711470A SE 7711470 A SE7711470 A SE 7711470A SE 7711470 L SE7711470 L SE 7711470L
Authority
SE
Sweden
Prior art keywords
orifice
closure piece
dynamic
pressure nozzle
connection opening
Prior art date
Application number
SE7711470A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE428389B (en
Inventor
K Stoll
Original Assignee
Festo Maschf Stoll G
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 Festo Maschf Stoll G filed Critical Festo Maschf Stoll G
Publication of SE7711470L publication Critical patent/SE7711470L/en
Publication of SE428389B publication Critical patent/SE428389B/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L25/00—Drive, or adjustment during the operation, or distribution or expansion valves by non-mechanical means
    • F01L25/02—Drive, or adjustment during the operation, or distribution or expansion valves by non-mechanical means by fluid means
    • F01L25/04—Drive, or adjustment during the operation, or distribution or expansion valves by non-mechanical means by fluid means by working-fluid of machine or engine, e.g. free-piston machine
    • F01L25/06—Arrangements with main and auxiliary valves, at least one of them being fluid-driven
    • F01L25/063—Arrangements with main and auxiliary valves, at least one of them being fluid-driven the auxiliary valve being actuated by the working motor-piston or piston-rod
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L23/00—Valves controlled by impact by piston, e.g. in free-piston machines

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Nozzles (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Details Of Valves (AREA)
  • Actuator (AREA)

Abstract

The piston/cylinder unit has at least one dynamic-pressure nozzle (11) intended for the reversal of the pressurising in the end position of the piston and attached externally to the cylinder. By means of the dynamic-pressure nozzle (11), the consumption of control medium is substantially reduced, yet high operating reliability is guaranteed, because the control medium is already in the flowing state at the moment of reversal. The dynamic-pressure nozzle (11) contains a connection opening (14) for an uninterrupted flow of control medium, an orifice (17), a connection opening (15), connected to the orifice, for the control or return flow, and at least one closure piece (61) for closing the orifice, which closure piece (61) is arranged at one end at the piston rod. In addition, the dynamic-pressure nozzle (11) has a sealing element (37) which can be actuated by the closure piece (61) and is allocated to a connecting opening (34) between pressure-connection opening (14) and orifice (17) or control-connection opening (15). Directly after the sealing element (37) has cleared the connecting opening under the action of the closure piece (61), the closure piece (61) closes the orifice. <IMAGE>
SE7711470A 1976-10-13 1977-10-12 CONTROL DEVICE FOR A PNEUMATIC OR HYDRAULIC PRESSURE MEDIUM FOR ANY SINGLE EFFECTS OF A DOUBLE-OPERATING Piston AND CYLINDER DEVICE SE428389B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19762646072 DE2646072C2 (en) 1976-10-13 1976-10-13 Control device for a pneumatic or hydraulic pressure medium to act on piston-cylinder units

Publications (2)

Publication Number Publication Date
SE7711470L true SE7711470L (en) 1978-04-14
SE428389B SE428389B (en) 1983-06-27

Family

ID=5990304

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7711470A SE428389B (en) 1976-10-13 1977-10-12 CONTROL DEVICE FOR A PNEUMATIC OR HYDRAULIC PRESSURE MEDIUM FOR ANY SINGLE EFFECTS OF A DOUBLE-OPERATING Piston AND CYLINDER DEVICE

Country Status (6)

Country Link
CH (1) CH627240A5 (en)
DE (1) DE2646072C2 (en)
FR (1) FR2367913A1 (en)
GB (1) GB1594146A (en)
IT (1) IT1084777B (en)
SE (1) SE428389B (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2142157C3 (en) * 1971-08-23 1975-07-17 Festo-Maschinenfabrik Gottlieb Stoll, 7300 Esslingen Control device for a pneumatic or hydraulic pressure medium
US3943823A (en) * 1974-06-13 1976-03-16 Nordson Corporation Control system for double acting air motor
DE2606177C2 (en) 1976-02-17 1983-06-30 Festo-Maschinenfabrik Gottlieb Stoll, 7300 Esslingen Backflow sensor

Also Published As

Publication number Publication date
IT1084777B (en) 1985-05-28
CH627240A5 (en) 1981-12-31
DE2646072C2 (en) 1986-07-24
FR2367913B1 (en) 1984-10-26
SE428389B (en) 1983-06-27
FR2367913A1 (en) 1978-05-12
GB1594146A (en) 1981-07-30
DE2646072A1 (en) 1978-04-20

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