JPS57192658A - Speed changing clutch control valve - Google Patents

Speed changing clutch control valve

Info

Publication number
JPS57192658A
JPS57192658A JP7615281A JP7615281A JPS57192658A JP S57192658 A JPS57192658 A JP S57192658A JP 7615281 A JP7615281 A JP 7615281A JP 7615281 A JP7615281 A JP 7615281A JP S57192658 A JPS57192658 A JP S57192658A
Authority
JP
Japan
Prior art keywords
ports
port
switch valve
speed changing
control valve
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
JP7615281A
Other languages
Japanese (ja)
Inventor
Mikio Umeda
Ryozo Yamamoto
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.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy 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 Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Priority to JP7615281A priority Critical patent/JPS57192658A/en
Publication of JPS57192658A publication Critical patent/JPS57192658A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Transmission Device (AREA)

Abstract

PURPOSE:To reduce the number of hydraulic pressure supply ports and also the size of th valve body by providing the first and second main speed changing ports separately in the first and second switch valves and by supplying hydraulic pressure via the hydraulic circuits provided in the respective spools. CONSTITUTION:The valve body 13 of the first switch valve 3 has a port 16 connected to a hydraulic pump 1, a port 17 connected to a directional clutch switch valve 5, a port 18 connected to the port 36 of the second switch valve 14, ports 19, 20, 21 connected to cylinders 8, 9, 10 for the first, second and third speed clutches, ports 22, 23, 24 connected to a low-speed clutch cylinder 11, and a drain port 25. The valve body 33 of the second switch valve 4 has ports 37, 38, 39 connected to the flow paths 54, 55, 56 and ports 19, 20, 21, and ports 40, 41, 42 connected to a high-speed clutch cylinder 12.
JP7615281A 1981-05-20 1981-05-20 Speed changing clutch control valve Pending JPS57192658A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7615281A JPS57192658A (en) 1981-05-20 1981-05-20 Speed changing clutch control valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7615281A JPS57192658A (en) 1981-05-20 1981-05-20 Speed changing clutch control valve

Publications (1)

Publication Number Publication Date
JPS57192658A true JPS57192658A (en) 1982-11-26

Family

ID=13597044

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7615281A Pending JPS57192658A (en) 1981-05-20 1981-05-20 Speed changing clutch control valve

Country Status (1)

Country Link
JP (1) JPS57192658A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60205054A (en) * 1984-03-30 1985-10-16 Aisin Seiki Co Ltd Manual valve of automatic speed changer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60205054A (en) * 1984-03-30 1985-10-16 Aisin Seiki Co Ltd Manual valve of automatic speed changer
JPH045861B2 (en) * 1984-03-30 1992-02-03 Aisin Seiki

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