JPS57106910A - Pressure compensating valve - Google Patents

Pressure compensating valve

Info

Publication number
JPS57106910A
JPS57106910A JP18322280A JP18322280A JPS57106910A JP S57106910 A JPS57106910 A JP S57106910A JP 18322280 A JP18322280 A JP 18322280A JP 18322280 A JP18322280 A JP 18322280A JP S57106910 A JPS57106910 A JP S57106910A
Authority
JP
Japan
Prior art keywords
room
pressure
spring
spool
stepped pin
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
JP18322280A
Other languages
Japanese (ja)
Other versions
JPS6262367B2 (en
Inventor
Seiji Taguchi
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 JP18322280A priority Critical patent/JPS57106910A/en
Publication of JPS57106910A publication Critical patent/JPS57106910A/en
Publication of JPS6262367B2 publication Critical patent/JPS6262367B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D7/00—Control of flow
    • G05D7/01—Control of flow without auxiliary power
    • G05D7/0126—Control of flow without auxiliary power the sensing element being a piston or plunger associated with one or more springs

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Flow Control (AREA)

Abstract

PURPOSE:To achieve high-precision pressure compensation by providing a pressure room adjacently to a spring room and connecting it to a primary port, and fitting a stepped pin consisting of a large-diameter part and small-diameter parts in a diaphragm between the pressure room and spring room so that it can slide freely. CONSTITUTION:A pressure room 43 is provided adjacently to a spring room 16 and connected to a primary port 26, and in a diaphragm 45 between the pressure room 43 and spring room 16, a stepped pin 42 consisting of a large-diameter part 46 and small- diameter parts 49 is fitted so that is can slide freely. When a spool 14 is on the side of the spring room 16, the stepped pin 42 is pressed against the spool 14 with compensating force by a pressure difference PP-PL operating on the pressure receiving area a1 of the small-diameter part 49 and when on the side of a pilot room 15, the stepped pin 42 is pressed against the spool 14 with compensating force based upon the pressure difference PP-PL operating on the pressure receiving area a2 of the large-diameter part 46. Thus, axial thrust operating on the spool 14 is canceled and reduction in the force of a spring 17 is compensated. Therefore, high-precision pressure compensation is performed. Said PP is the pressure of the pressure room 43 and PL is that at a part behind a throttle 2.
JP18322280A 1980-12-23 1980-12-23 Pressure compensating valve Granted JPS57106910A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18322280A JPS57106910A (en) 1980-12-23 1980-12-23 Pressure compensating valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18322280A JPS57106910A (en) 1980-12-23 1980-12-23 Pressure compensating valve

Publications (2)

Publication Number Publication Date
JPS57106910A true JPS57106910A (en) 1982-07-03
JPS6262367B2 JPS6262367B2 (en) 1987-12-25

Family

ID=16131921

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18322280A Granted JPS57106910A (en) 1980-12-23 1980-12-23 Pressure compensating valve

Country Status (1)

Country Link
JP (1) JPS57106910A (en)

Also Published As

Publication number Publication date
JPS6262367B2 (en) 1987-12-25

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