A control valve (10) including a housing (16), a pair of end caps (12, 14) sealingly attached to the housing (16), each the end cap (12, 14) being formed with a bore (20) for flow of a fluid therethrough, a shaft (26) fixedly attached to the end caps (12, 14) and which passes through the housing (16
A control valve (10) including a housing (16), a pair of end caps (12, 14) sealingly attached to the housing (16), each the end cap (12, 14) being formed with a bore (20) for flow of a fluid therethrough, a shaft (26) fixedly attached to the end caps (12, 14) and which passes through the housing (16), a piston housing (40) disposed in the housing (16) and secured between the end caps (12, 14), the piston housing (40) being formed with a plurality of circumferentially spaced apertures (42) for flow of a fluid therethrough, a valve seat (48) sealingly secured to one of the end caps (12), and a piston (60) sealingly disposed in the piston housing (40), arranged to slide along the shaft (26) and selectively sealingly abut against the valve seat (48), wherein when the piston (60) does not sealingly abut against the valve seat (48), a fluid can flow through the bore (20) of one of the end caps (12), past the apertures (42) of the piston housing (40), between the piston housing (40) and the housing (16) and out through the bore (20) of the other end cap (14).
대표청구항▼
[ What is claimed is:] [1.]1. A control valve (10) comprising:a housing (16);a pair of end caps (12, 14) sealingly attached to said housing (16), each said end cap (12, 14) being formed with a bore (20) for flow of a fluid therethrough;a shaft (26) fixedly attached to said end caps (12, 14) and whic
[ What is claimed is:] [1.]1. A control valve (10) comprising:a housing (16);a pair of end caps (12, 14) sealingly attached to said housing (16), each said end cap (12, 14) being formed with a bore (20) for flow of a fluid therethrough;a shaft (26) fixedly attached to said end caps (12, 14) and which passes through said housing (16);a piston housing (40) disposed in said housing (16) and secured between said end caps (12, 14), said piston housing (40) being formed with a plurality of circumferentially spaced apertures (42) for flow of a fluid therethrough;a valve seat (48) sealingly secured to one of said end caps (12); anda piston (60) sealingly disposed in said piston housing (40), arranged to slide along said shaft (26) and selectively sealingly abut against said valve seat (48), wherein when said piston (60) does not sealingly abut against said valve seat (48), a fluid can flow through the bore (20) of one of said end caps (12), past said apertures (42) of said piston housing (40), between said piston housing (40) and said housing (16) and out through the bore (20) of the other end cap (14).
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이 특허에 인용된 특허 (1)
Booyens Andries M. (75 Tarentaal Avenue ; Ninapark Extension 3 Akasia ; Transvaal Province ZAX), Fluid control valve and actuator therefor.
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