JPS5569379A - Butterfly valve - Google Patents

Butterfly valve

Info

Publication number
JPS5569379A
JPS5569379A JP14104578A JP14104578A JPS5569379A JP S5569379 A JPS5569379 A JP S5569379A JP 14104578 A JP14104578 A JP 14104578A JP 14104578 A JP14104578 A JP 14104578A JP S5569379 A JPS5569379 A JP S5569379A
Authority
JP
Japan
Prior art keywords
piston
driving
cylinder
position adjusting
stopper screw
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.)
Pending
Application number
JP14104578A
Other languages
Japanese (ja)
Inventor
Naotake Saito
Yasushi Nakaizumi
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 Ltd
Original Assignee
Hitachi 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
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP14104578A priority Critical patent/JPS5569379A/en
Publication of JPS5569379A publication Critical patent/JPS5569379A/en
Pending legal-status Critical Current

Links

Landscapes

  • Mechanically-Actuated Valves (AREA)

Abstract

PURPOSE: To facilitate multi-stage control of a butterfly valve and improve life expectancy and reliability of a pump, by providing the valve system with a driving dylinder, position adjusting cylinder, driving piston, position adjusting piston and stopper screw.
CONSTITUTION: A pinion 18 is engaged with a rack 19 fitted to a piston 21 which is driven with compressed air in a driving cylinder 20. A position adjusting cylinder 23 is coaxially connected with the driving cylinder 20. A position adjusting piston 22 is inserted in the cylinder 23, having a projection for fitting a stopper screw 24 on the side of a driving piston 21. The initial fransfer distance l of the driving piston 21 can be adjusted through control of the stopper screw 24.
COPYRIGHT: (C)1980,JPO&Japio
JP14104578A 1978-11-17 1978-11-17 Butterfly valve Pending JPS5569379A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14104578A JPS5569379A (en) 1978-11-17 1978-11-17 Butterfly valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14104578A JPS5569379A (en) 1978-11-17 1978-11-17 Butterfly valve

Publications (1)

Publication Number Publication Date
JPS5569379A true JPS5569379A (en) 1980-05-24

Family

ID=15282958

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14104578A Pending JPS5569379A (en) 1978-11-17 1978-11-17 Butterfly valve

Country Status (1)

Country Link
JP (1) JPS5569379A (en)

Similar Documents

Publication Publication Date Title
DE3684628D1 (en) DEVICE FOR DAMPING MOTION PROCESSES.
JPS5270235A (en) Cylinder number controlling system in engine
JPS5387433A (en) Apparatus for controlling steering force of power steering system
JPS5569379A (en) Butterfly valve
JPS5246227A (en) Exhaust-gas reciculation system
JPS52127515A (en) Control device for returning exhaust gas
GB1519584A (en) A fuel economiser device
JPS6298783U (en)
JPS51142163A (en) Filtering apparatus
JPS5276701A (en) Energy-saving hydraulic pump and hydraulic circuit with this hydraulic pump
JPS53147127A (en) Fuel injection device
JPS57132938A (en) Vacuum adsorbing device
JPS5410462A (en) Freezer
JPS5598691A (en) Compressor
JPS53140479A (en) Hydraulic pressure controller
AU5652786A (en) Spool valve with controlled response rate
FR2289781A1 (en) Device to control ram at ends of strokes - has body screwing into inlet with feeler actuated by piston damper ring
JPS53103203A (en) Oil pressure operating device for fluid pressure conveying piston pump
JPS53126507A (en) Pump control device
JPS535379A (en) Driving unit
JPS5292025A (en) Accelerator pump mechanism for carburetter
JPS5578804A (en) Valve block for pressure fluid
JPS535404A (en) Control system of reciprocating plunger pump
JPS5261632A (en) Egr control device
JPS5218569A (en) Hydraulic cylinder for trnsmission control