F - Mech Eng,Light,Heat,Weapons – 15 – B
Patent
F - Mech Eng,Light,Heat,Weapons
15
B
137/108
F15B 13/00 (2006.01) F15B 13/04 (2006.01) F16K 11/00 (2006.01)
Patent
CA 1104459
ABSTRACT OF THE DISCLOSURE Four poppet valves are mounted in a common machined body which has a single inlet port, a pair of working ports and a pair of exhaust ports. The body interior has four valve ports, two of which connect the inlet port to the two working ports and the other two connecting the working ports with the exhaust ports. The housing also has identically sized guide supports and piston chambers for the poppet valves. These may be chosen either as normally closed or normally open straight way valves in a variety of arrangements. With each arrangement one or more pilot valves, either straight way, three-way or four-way, normally closed or normally open, may be connected to the piston chambers. Thus, the valve system may be arranged to have a four-way function as controlled by a single normally closed three-way pilot valve, operate two independent fluid motors using two three-way pilots, or can be arranged for various other control functions.
302535
Macrae & Co.
Ross Operating Valve Company
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