Multiple valve unit for pressurized fluid supply system

Details Multiple valve unit for pressurized fluid supply system Multiple valve unit for pressurized fluid supply system

1995-11-03

1997-04-22

Michalsky, Gerald A.

Fluid handling

Systems

Supply and exhaust

137884, F15B 1308

Patent

active

056222068

ABSTRACT:
A multiple valve includes first and second valve units respectively having first and second valve bodies. The first and second valve bodies have respective spool bores therein; and a respective spool is inserted in the spool bore of each of the first and second valve bodies. The first and second valve bodies of the first and second valve units also have inlet ports, tank ports, and first and second blocks having mounting holes, the blocks and a respective valve body being fixedly coupled together by means of stud bolts. The first block has a first threaded hole on one side surface thereof for receiving the stud bolt, and a second threaded hole on another side surface thereof for receiving a cover bolt. A pump passage, a main passage and a tank passage extend between the one side surface and the another side surface of the first block, and a stud bolt extends through the second block and is engaged with the first threaded hole. A cover is fixedly mounted on the another side surface of the first block by a cover bolt which is engaged with the second threaded hole, the cover having a cut-out groove therein for communicating the pump passage with the main passage.

REFERENCES:
patent: 4020867 (1977-05-01), Sumiyoshi
patent: 4709724 (1987-12-01), Williams
patent: 5038671 (1991-08-01), Ueno
patent: 5115835 (1992-05-01), Ueno
patent: 5138837 (1992-08-01), Obertrifter et al.

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