A device for controlling pressures of a flow medium in a component in which the device is formed at least by the component and at least one valve; the valve has an axially oriented valve axis and is seated, at least in part, in the component and has at least one opening. The opening leads into an annular gap which at least partly surrounds the valve, and the annular gap is formed between the valve and the component. The annular gap is sealed by at least one seal.

A valve is provided, the valve including a housing; and a valve element, the housing comprising a cylindrical bore defining an axial direction and an annular shoulder extending into the cylindrical bore, wherein the valve element is axially moveable within the cylindrical bore so as to move the valve element between a closed position in which the valve element engages with the annular shoulder and an open position in which the valve element is spaced from the annular shoulder, wherein, in the open position, fluid flowing into the valve in a first axial direction may flow through one or more apertures provided in the valve element and through the valve, wherein the valve element and the annular shoulder are configured to be in continuous contact along an annular contact surface when in the closed position so as to seal against fluid flow through the valve.

A one-way valve is provided. The one-way valve may be, for example, a check valve, a relief valve, or the like, which may be in the form of a poppet valve. The valve provides a housing with a through hole. The through hole has an upstream portion and a downstream portion. The upstream portion has a reduced diameter compared to the downstream portion. The housing contains a valve seat, which typically has a taper. A poppet, or valve member, moves within the through hole from a valve closed position and a valve open position. The poppet has a high pressure facing side and a low pressure facing side opposite the high pressure facing side. The low pressure facing side of the poppet engages an elastic member of a compression member that biases the poppet in the valve closed position. The high pressure facing side of the poppet engages a resilient metal seal in the form of an annular disc. The annular disc has a generally wavy or undulating shape. The outer ends of the resilient metal seal have a curve or arc shape and provide a seat interface that releasably engages the valve seat.

The invention relates to a mechanical valve assembly used to control a fluid (e.g., gas, liquid, etc.) to provide at least one of a check valve control feature and flow range control feature. When unwanted low flows are present, the valve remains closed and jumps open only at higher desired flow rates. The valve then closes when the forces at the input and output equalize, and the process repeats. Such allows fluid delivered to a flow meter in larger segregated bursts, rather than steady low flows that cause metering errors.

A piston pump for pumping a pressure medium in an electronically slip-controllable vehicle brake system includes a pressure-medium control valve configured to control a throughflow direction in a pressure medium circuit. The pressure-medium control valve has a valve housing, a valve seat, and a valve-closing body that is received in the valve housing in an axially movable and radially guided manner. The valve-closing body is configured to control the valve seat according to the prevailing pressure ratios upstream and downstream of the valve seat. The valve seat is configured as a single component with the valve housing. The pressure-medium control valve is produced by forming in a compact and cost-effective manner. The pressure-medium control valve operates quietly and is configured to be used alternatively as an independent unit that is configured to be tested prior to use.

A valve assembly that includes a valve housing and a valve body that is configured to be mated with the valve housing. The valve housing includes at least one window that extends through a wall of the valve housing, and the valve body includes at least one prong that is configured to mate with the window when the valve body is mated with the valve housing.

A device for protecting an electric pump against overpressures, which comprises a main body which forms a cavity with an axis of extension which is substantially parallel to an axis of extension of the main body and a flow control element which can slide in the cavity along the axis of extension of the cavity between a closed position, in which the flow control element affects an inlet of the cavity which can be connected fluidically to a delivery port of an electric pump, and an open position, in which the flow control element clears at least partially the inlet so as to place it in fluidic connection with an outlet of said cavity, elastic means designed to push the flow control element in response to the pressure that is present in the delivery port.

A coil spring is disposed in a fluid passage between a cylindrical body and a valve element to urge the valve element toward a closed position. The coil spring comprises a valve support portion supporting the valve element, a secured portion secured to an inner peripheral surface of the fluid passage, an expanding-contracting portion extending from the secured portion, and a connecting portion between the expanding-contracting portion and the valve support portion. The connecting portion comprises a first portion curved so as to pass radially outward of an end winding portion of the expanding-contracting portion, a second portion passing through the center of the valve support portion, a third portion extending curvedly so as to overlap the first portion, and a fourth portion extending to the valve support portion. When the coil spring is compressed, the valve support portion is supported to the expanding-contracting portion 54 through the connecting portion.

A port for use in introducing a fluid into an internal fluid chamber includes a plug bore, a valve disposed in the plug bore and a plug. The plug includes one or more seal grooves and a ring seal in each of the one or more seal grooves. The ring seal creates a seal between the plug and the plug bore. The port further includes a positive stop barrier that prevents the plug from being removed from the plug bore.

Embodiments presented provide for a fluid end that has cartridge style check valves that may be serviced through a vertical bore.