초록 ▼

An apparatus is described wherein for a device for controlling the flow of fluid. A housing having an inlet for receiving the fluid, an outlet for discharging the fluid, and a bore connecting the inlet to the outlet is provided. A piston is disposed in the bore and has a through bore for permitting

An apparatus is described wherein for a device for controlling the flow of fluid. A housing having an inlet for receiving the fluid, an outlet for discharging the fluid, and a bore connecting the inlet to the outlet is provided. A piston is disposed in the bore and has a through bore for permitting the flow of the fluid through the piston. A valve member is disposed in the bore of the piston and adapted to engage an internal surface of the piston to block fluid flow through the piston and therefore through the housing, the piston responding to an increase in pressure at the outlet as a result of the fluid flow for moving in a direction toward the valve member until the valve member engages the piston surface to restrict fluid flow. A stop member is disposed in the housing and extends into the bore of the piston for stopping movement of the piston after it engages the valve member. Further, the embodiment includes means for normally positioning the valve member away from the surface so that fluid flows through the piston.

대표청구항 ▼

[ What is claimed is:] [1.]1. A device for controlling the flow of fluid, comprising:a housing having an inlet for receiving the fluid, an outlet for discharging the fluid, and a bore connecting the inlet to the outlet;a piston disposed in the bore and having a through bore for permitting the flow o

[ What is claimed is:] [1.]1. A device for controlling the flow of fluid, comprising:a housing having an inlet for receiving the fluid, an outlet for discharging the fluid, and a bore connecting the inlet to the outlet;a piston disposed in the bore and having a through bore for permitting the flow of the fluid through the piston;a valve member disposed in the bore of the piston and adapted to engage an internal surface of the piston to block fluid flow through the piston and therefore through the housing, the piston responding to an increase in pressure at the outlet as a result of the fluid flow for moving in a direction toward the valve member until the valve member engages the piston surface to restrict fluid flow;a stop member disposed in the housing and extending into the bore of the piston for stopping movement of the piston after it engages the valve member, the stop member having:(i) a through bore for permitting the flow of the fluid from the housing inlet through the stop member to the piston bore, and(ii) a transverse slot for preventing blockage of the stop member bore; andmeans for normally positioning the valve member away from the piston surface so that fluid flows through the piston.