Apparatus and method contemplating a high pressure fluid end assembly having a body defining a body bore and defining a recess in the body intersecting the body bore. A closure is joined to the body and forms a sealing surface. A seal is mounted to the body in the recess and configured to extend from the recess beyond the body bore to seal against the sealing surface formed by the closure.

An evaporative emissions control system includes a first vent valve configured to selectively open and close a first vent, a second vent valve configured to selectively open and close a second vent, a fuel level sensor configured to sense a fuel level in the fuel tank, a pressure sensor configured to sense a pressure in the fuel tank, an accelerometer configured to measure an acceleration of the vehicle, and a controller configured to regulate operation of the first and second vent valves to provide pressure relief for the fuel tank. The controller is programmed to determine if a refueling event is occurring based one signals indicating the fuel level is increasing, the pressure in the fuel tank is increasing, and the vehicle is not moving, and open at least one of the first and second vent valves based on determining the refueling event is occurring.

A device for sealing a valve for controlling a coolant of an internal combustion engine of a motor vehicle is described, which valve is mounted in a cooling system together with a valve housing, wherein the valve housing contains, at the inlet and/or the outlet side, a sealing ring which has an annular wall and a spaced annular lip extending away from the annular wall from a contact point.

A control valve includes a casing that has a port in which an outflow opening is formed, a joint that is joined to an opening end surface of an outflow opening in the port, a rotor that is rotatably accommodated inside the casing, a slide ring that has a slide surface for sliding on an outer circumferential surface of the rotor, a sealing ring that is interposed between an inner circumferential surface of the port and an outer circumferential surface of the slide ring, and a holder that is disposed between the inner circumferential surface of the port and the outer circumferential surface of the slide ring and holds the sealing ring from an outer side in a port axial direction with respect to the sealing ring. The holder is disposed to be separated from at least any of the joint and the port.

Apparatus and method contemplating a high pressure fluid end assembly having a body defining a body bore and defining a recess in the body intersecting the body bore. A closure is joined to the body and forms a sealing surface. A seal is mounted to the body in the recess and configured to extend from the recess beyond the body bore to seal against the sealing surface formed by the closure.

A non-return insert valve (100) for a fluid circuit, in particular of a vehicle, this valve (100) being configured to be inserted into a pipe (12) and comprising: a tubular body (102), a ring (104) comprising guides (140), a piston (106) configured to slidingly cooperate with said guides (140) and carrying a seal (146), and an elastically deformable member (108) for biasing said seal (146) in axial support against a seat (124) of the tubular body (102), said piston (106) comprising at its external periphery lugs (166) which are configured to be supported axially against an internal cylindrical shoulder (126) of said body (102), in order to precisely define a first position of the piston, the fluid being intended to flow between these lugs (166) when the piston (106) is in a second position.

A fluid end assembly comprising a housing having multiple conduits formed therein. A tubular sleeve is installed within one of the conduits and is configured to house a plurality of packing seals. A seal is installed within a groove formed in the walls of the housing surrounding the tubular sleeve such that the seal engages an outer surface of the tubular sleeve.

A valve is provided. The valve includes a body provided with fluid passages for circulating fluid therein. The body has a body interface with ports connected to the fluid passages. The valve also includes a valve element having a valve element interface facing the body interface. The valve element can move between different positions so as to permit or obstruct communication between the fluid passages. A biasing element biases the valve element interface against the body interface. A load varying mechanism is provided to load the biasing element with different sealing load forces according to the different positions of the valve element. The sealing load force applied on the rotor is thus decreased during rotation, reducing friction between the valve body and the valve element.

Arrangement for actuating shut-off valve with tapered plug, has housing in which hollow actuating cylinder is coaxially supported for rotation and with an actuating shaft aligned with the coaxial axis firmly attached. Output cylinder is coaxially arranged in hollow actuating cylinder. The output cylinder is movable relative to hollow drive cylinder axially and radially. Spindle is attached on output cylinder opposite actuating shaft and aligned with coaxial axis; tapered plug being fastened on end of spindle facing away from output cylinder. At least one radially outwardly directed pin is arranged on outer peripheral surface of output cylinder. Outer surfaces of housing and hollow actuating cylinder have each at least one guideway extending over radial sector of outer surfaces, with which pin is operatively connected as a respective sliding block. At least the guideway arranged in outer surface of hollow actuating cylinder is formed as a through-opening through which pin passes.

Arrangement for actuating shut-off valve with tapered plug, has housing in which hollow actuating cylinder is coaxially supported for rotation and with an actuating shaft aligned with the coaxial axis firmly attached. Output cylinder is coaxially arranged in hollow actuating cylinder. The output cylinder is movable relative to hollow drive cylinder axially and radially. Spindle is attached on output cylinder opposite actuating shaft and aligned with coaxial axis; tapered plug being fastened on end of spindle facing away from output cylinder. At least one radially outwardly directed pin is arranged on outer peripheral surface of output cylinder. Outer surfaces of housing and hollow actuating cylinder have each at least one guideway extending over radial sector of outer surfaces, with which pin is operatively connected as a respective sliding block. At least the guideway arranged in outer surface of hollow actuating cylinder is formed as a through-opening through which pin passes.