JPS5524282A - Fluid control unit - Google Patents

Fluid control unit

Info

Publication number
JPS5524282A
JPS5524282A JP3362879A JP3362879A JPS5524282A JP S5524282 A JPS5524282 A JP S5524282A JP 3362879 A JP3362879 A JP 3362879A JP 3362879 A JP3362879 A JP 3362879A JP S5524282 A JPS5524282 A JP S5524282A
Authority
JP
Japan
Prior art keywords
ram cylinder
valve
load
stopped
pump
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
JP3362879A
Other languages
Japanese (ja)
Other versions
JPS5825163B2 (en
Inventor
Tamotsu Abe
Kenji Masuda
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
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 filed Critical Daikin Industries Ltd
Priority to JP3362879A priority Critical patent/JPS5825163B2/en
Publication of JPS5524282A publication Critical patent/JPS5524282A/en
Publication of JPS5825163B2 publication Critical patent/JPS5825163B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Fluid-Pressure Circuits (AREA)

Abstract

PURPOSE: To proportionally control the ascending and descending velocity of load with saved power by providing valves for compensating pressure before and behind the flow changeover valve and by proportionally setting the opening extent of the flow changeover valve by means of current.
CONSTITUTION: While the ram cylinder 28 is moved upwards, the pump 10 is controlled to be proportional to the current value for the electromagnetic valve 30. When the ram cylinder is stopped, the leftwise change of shuttle valve 34 by load pressure is prevented by the check valve. While the ram cylinder is moved downwards, the pump is stopped to return the fluid to the tank, the load drops by self weight, speed of the ram cylinder is made proportional to the current value for the electromagnetic valve.
COPYRIGHT: (C)1980,JPO&Japio
JP3362879A 1979-03-22 1979-03-22 fluid control device Expired JPS5825163B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3362879A JPS5825163B2 (en) 1979-03-22 1979-03-22 fluid control device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3362879A JPS5825163B2 (en) 1979-03-22 1979-03-22 fluid control device

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP6422573A Division JPS5012488A (en) 1973-06-05 1973-06-05

Publications (2)

Publication Number Publication Date
JPS5524282A true JPS5524282A (en) 1980-02-21
JPS5825163B2 JPS5825163B2 (en) 1983-05-26

Family

ID=12391707

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3362879A Expired JPS5825163B2 (en) 1979-03-22 1979-03-22 fluid control device

Country Status (1)

Country Link
JP (1) JPS5825163B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102913493A (en) * 2012-09-06 2013-02-06 浙江大学 Hydraulic system capable of independently adjusting speed by adopting two pressure compensators
CN109019381A (en) * 2018-09-14 2018-12-18 杭州流控机器制造有限公司 A kind of negative load control loop of the hydraulic motor for elevator winch and its method

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0237625U (en) * 1988-09-06 1990-03-13
JPH02149261U (en) * 1989-05-19 1990-12-19
JP2889487B2 (en) * 1994-03-15 1999-05-10 セノー株式会社 Stretching machine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102913493A (en) * 2012-09-06 2013-02-06 浙江大学 Hydraulic system capable of independently adjusting speed by adopting two pressure compensators
CN109019381A (en) * 2018-09-14 2018-12-18 杭州流控机器制造有限公司 A kind of negative load control loop of the hydraulic motor for elevator winch and its method

Also Published As

Publication number Publication date
JPS5825163B2 (en) 1983-05-26

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