JPS5540373A - Flow rate control valve - Google Patents

Flow rate control valve

Info

Publication number
JPS5540373A
JPS5540373A JP638579A JP638579A JPS5540373A JP S5540373 A JPS5540373 A JP S5540373A JP 638579 A JP638579 A JP 638579A JP 638579 A JP638579 A JP 638579A JP S5540373 A JPS5540373 A JP S5540373A
Authority
JP
Japan
Prior art keywords
oil
port
spool valve
minor diameter
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.)
Pending
Application number
JP638579A
Other languages
Japanese (ja)
Inventor
Yoshiyuki Shimoura
Asaji Kuroda
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.)
Jidosha Kiki Co Ltd
Original Assignee
Jidosha Kiki 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 Jidosha Kiki Co Ltd filed Critical Jidosha Kiki Co Ltd
Priority to JP638579A priority Critical patent/JPS5540373A/en
Priority to US06/027,240 priority patent/US4244389A/en
Priority to DE2916575A priority patent/DE2916575C2/en
Priority to ES480339A priority patent/ES480339A1/en
Priority to GB7916747A priority patent/GB2034441B/en
Publication of JPS5540373A publication Critical patent/JPS5540373A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To keep the quantity of delivery oil constant regardless of any increase in the discharge amount of an oil pump by forming a minor diameter part in a spool valve and also providing the outside surface of this minor diameter portion with unevenness.
CONSTITUTION: Discharge oil from the oil pump is delivered to oil-hydraulically operate apparatus through intake port 8, orifice port 10, and outlet port 9. An increase in the quentity of discharged oil yields pressure difference between before and after the orifice port 10 depending on how it is throttled, and the spool valve 3 puts the high-pressure chamber 5 and by-pass port 14 into communication each other, working against the spring 6. Part of the pressure oil from the oil pump is thereby fed back to the intake hole of pump. Rightward shift of the spool valve 3, which occurs at the same time, closes the opening of orifice port 10 with ring- shaped extruded part 15b at the minor diameter part 15 with a certain gap a2 reserved, so that the throat effect is raised up and the quantity of feedback oil is increased while the amount of delivery oil to the oil-hydraulically operated apparatus is decreased temporarily. Thus it can be kept constant.
COPYRIGHT: (C)1980,JPO&Japio
JP638579A 1978-09-08 1979-01-22 Flow rate control valve Pending JPS5540373A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP638579A JPS5540373A (en) 1979-01-22 1979-01-22 Flow rate control valve
US06/027,240 US4244389A (en) 1978-09-08 1979-04-05 Flow control valve
DE2916575A DE2916575C2 (en) 1978-09-08 1979-04-24 Current regulator
ES480339A ES480339A1 (en) 1978-09-08 1979-05-08 Flow control valve
GB7916747A GB2034441B (en) 1978-09-08 1979-05-15 Flow control valves

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP638579A JPS5540373A (en) 1979-01-22 1979-01-22 Flow rate control valve

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP11045778A Division JPS5536680A (en) 1978-09-08 1978-09-08 Flow control valve

Publications (1)

Publication Number Publication Date
JPS5540373A true JPS5540373A (en) 1980-03-21

Family

ID=11636904

Family Applications (1)

Application Number Title Priority Date Filing Date
JP638579A Pending JPS5540373A (en) 1978-09-08 1979-01-22 Flow rate control valve

Country Status (1)

Country Link
JP (1) JPS5540373A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5771740A (en) * 1980-10-22 1982-05-04 Matsushita Electric Ind Co Ltd Automatic screw driver
JPS58146168U (en) * 1982-03-26 1983-10-01 自動車機器株式会社 flow control valve
JPS61191826U (en) * 1985-05-20 1986-11-29
JPS62157734A (en) * 1985-12-27 1987-07-13 Niigata Eng Co Ltd Supplier for heat exchange tube or the like
JP2012059299A (en) * 2011-12-20 2012-03-22 Shimadzu Corp Flow control valve
CN102748336A (en) * 2012-07-11 2012-10-24 大连华锐重工集团股份有限公司 Speed change valve used for heavy machinery
CN111140682A (en) * 2018-11-06 2020-05-12 宁波方太厨具有限公司 Automatic water supply valve for heating loop

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5318823A (en) * 1976-08-06 1978-02-21 Jidosha Kiki Co Flow control valve

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5318823A (en) * 1976-08-06 1978-02-21 Jidosha Kiki Co Flow control valve

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5771740A (en) * 1980-10-22 1982-05-04 Matsushita Electric Ind Co Ltd Automatic screw driver
JPS6222734B2 (en) * 1980-10-22 1987-05-19 Matsushita Electric Ind Co Ltd
JPS58146168U (en) * 1982-03-26 1983-10-01 自動車機器株式会社 flow control valve
JPS61191826U (en) * 1985-05-20 1986-11-29
JPH028663Y2 (en) * 1985-05-20 1990-03-01
JPS62157734A (en) * 1985-12-27 1987-07-13 Niigata Eng Co Ltd Supplier for heat exchange tube or the like
JPH0445286B2 (en) * 1985-12-27 1992-07-24 Niigata Engineering Co Ltd
JP2012059299A (en) * 2011-12-20 2012-03-22 Shimadzu Corp Flow control valve
CN102748336A (en) * 2012-07-11 2012-10-24 大连华锐重工集团股份有限公司 Speed change valve used for heavy machinery
CN102748336B (en) * 2012-07-11 2014-10-15 大连华锐重工集团股份有限公司 Speed change valve used for heavy machinery
CN111140682A (en) * 2018-11-06 2020-05-12 宁波方太厨具有限公司 Automatic water supply valve for heating loop

Similar Documents

Publication Publication Date Title
JPS5540373A (en) Flow rate control valve
JPS56143383A (en) Variable-capacity vane pump
EP0283215A3 (en) Liquid dispensing gun
JPS569696A (en) Cetrifugal compressor
US3522816A (en) Fluid system for filling and emptying an enclosure
JPS57171073A (en) Fuel injection device
US4073293A (en) Nozzle tip
JPS56143803A (en) Fluid controller
JPS574469A (en) Controller for flow rate of working fluid for power steering
JPS5537539A (en) Fuel injection pump
JPS56164202A (en) Fluidic device
JPS57116907A (en) Fluid equipment
JPS5649469A (en) Large capacity relief valve
JPS54116708A (en) Oil pressure pump
JPS57191485A (en) Pressure switch controlling type pump
JPS5554781A (en) Air valve
JPS5536680A (en) Flow control valve
JPH0427913B2 (en)
JPS56127868A (en) Thermosensitive pressure control device
JPS57102587A (en) Variable-volume type fluid pressure pump apparatus
JPS55146292A (en) Seizure-preventing device for pump
JPS57116902A (en) Fluid equipment
GB956921A (en) Oil-burner supply systems
US2839000A (en) Fuel injection device
JPS5677589A (en) Vane pump with flow controller