JPS57116902A - Fluid equipment - Google Patents

Fluid equipment

Info

Publication number
JPS57116902A
JPS57116902A JP17190681A JP17190681A JPS57116902A JP S57116902 A JPS57116902 A JP S57116902A JP 17190681 A JP17190681 A JP 17190681A JP 17190681 A JP17190681 A JP 17190681A JP S57116902 A JPS57116902 A JP S57116902A
Authority
JP
Japan
Prior art keywords
control valve
pressure
discharging
discharging rate
orifice
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.)
Granted
Application number
JP17190681A
Other languages
Japanese (ja)
Other versions
JPS6021241B2 (en
Inventor
Kenji Masuda
Takeshi Horiuchi
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.)
Daikin Industries Ltd
Original Assignee
Daikin Industries Ltd
Daikin Kogyo Co 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 Daikin Industries Ltd, Daikin Kogyo Co Ltd filed Critical Daikin Industries Ltd
Priority to JP17190681A priority Critical patent/JPS6021241B2/en
Publication of JPS57116902A publication Critical patent/JPS57116902A/en
Publication of JPS6021241B2 publication Critical patent/JPS6021241B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Fluid-Pressure Circuits (AREA)

Abstract

PURPOSE: To decrease power loss in such a way that in a contrivance to control discharging rate from a discharging rate variable pump by means of a pressure control valve, a flow rate adjustment variable orifice is provided on the return circuit from an actuator so as to control the differential pressure in its front and rear almost stably.
CONSTITUTION: A discharging rate variable pump 1 is controlled with its discharging rate in such a way that a swash plate 2, etc. is dislaced by a cylinder 4. While discharging fluid by means of the pump 1 is fed from a main flow circuit 8 via a flow direction control valve 10 to an actuator 50, it is constituted so that it may be circulated through a triple port type pressure control valve 30, etc. back to a reservoir 7a. A flow rate adjusting variable orifice 19 is provided on a flow direction control valve 10 so as to be connected to a fluid return circuit 300. Besides, the pressure control valve 30 has a cylinder 4 connected through a line 29 to its secondary port 25, and it is cnstituted so that pressure in the front and in the rear of said orifice may be respectively transferred to one end of its spool 31 and to a back pressure chamber 32 at the other end.
COPYRIGHT: (C)1982,JPO&Japio
JP17190681A 1981-10-26 1981-10-26 fluid equipment Expired JPS6021241B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17190681A JPS6021241B2 (en) 1981-10-26 1981-10-26 fluid equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17190681A JPS6021241B2 (en) 1981-10-26 1981-10-26 fluid equipment

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP12588574A Division JPS5151681A (en) 1974-10-29 1974-10-29 RYUTAISOCHI

Publications (2)

Publication Number Publication Date
JPS57116902A true JPS57116902A (en) 1982-07-21
JPS6021241B2 JPS6021241B2 (en) 1985-05-27

Family

ID=15932012

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17190681A Expired JPS6021241B2 (en) 1981-10-26 1981-10-26 fluid equipment

Country Status (1)

Country Link
JP (1) JPS6021241B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60263705A (en) * 1984-06-02 1985-12-27 ダンフオス・エー・エス Pressure feeder for hydraulic apparatus
JPS61252902A (en) * 1985-05-02 1986-11-10 ダンフオス　アクチエセルスカベト Controller for at least one hydraulic operating actuator

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60263705A (en) * 1984-06-02 1985-12-27 ダンフオス・エー・エス Pressure feeder for hydraulic apparatus
JPH0448968B2 (en) * 1984-06-02 1992-08-10 Danfoss As
JPS61252902A (en) * 1985-05-02 1986-11-10 ダンフオス　アクチエセルスカベト Controller for at least one hydraulic operating actuator

Also Published As

Publication number Publication date
JPS6021241B2 (en) 1985-05-27

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