A downstream-side passage of an expansion valve includes a small-diameter part to which a valve hole and an insertion hole are open, and a large-diameter part to which a pipe leading to an evaporator is connected. A plate has a shield part partially covering a downstream end of the small-diameter part. The shield part has a height of 2 mm or larger in a radial direction of the small-diameter part from a projected position of an opening of the insertion hole at the downstream end of the small-diameter part, and a width equal to or larger than a radius of the shaft within a range of the height. The plate is provided so that the shield part does not cover at least a range of projection of an opening of the valve hole at the downstream end of the small-diameter part.

To provide a tensioner that improves, with a simple structure, maintenance operation efficiency, as well as enhances the sealing performance and the degree of freedom of check valve design. Either a plunger or a housing has a valve setting hole for disposing a check valve therein, and a valve movement restricting part that restricts movement of the check valve, disposed in the valve setting hole, toward an oil supply passage. A coil spring includes a small-diameter part and a large-diameter part continuous with the small-diameter part and disposed in contact with the check valve. The coil spring is disposed so as to urge the check valve toward the oil supply passage. The largest diameter of the large-diameter part is set larger than the inner diameter of the valve setting hole.

A press-fit check valve for a hydraulic tensioner includes a retainer, a seat, a ball, and a spring. The seat of the check valve is press-fit against the wall of the check valve counterbore of the hydraulic tensioner body. In some embodiments, the seat is cup-shaped to provide a predetermined level of press force retention of the press-fit check valve. In some embodiments, the seat includes a plurality of legs separated by leg openings. In some embodiments, a backflow path is provided past the press-fit check valve by a combination of the leg openings and at least one backflow slot through a flange of the retainer. In some embodiments, a lip at the outer end of the check valve counterbore prevents the seat from backing out of the check valve counterbore.

A valve for draining off gas from a centrifugal separator includes a valve body having a central axis around which the valve may be rotated; a cavity arranged at a radial distance from the central axis and including a valve ball and a valve seat; at least one drain channel extending from the valve seat of the cavity to the outside of the valve body; and at least one gas intake extending from the outside of the valve body to the cavity. The valve ball is in a relaxed state within the cavity and thereby arranged to float on a liquid surface present within the cavity, and thereby being movable in the cavity in the radial direction from rotational axis from a closed position, in which the ball rests against the valve seat and thereby blocking gas in the cavity from entering the at least one drain channel, to an open position, in which the valve ball is at a longer radial distance from the axis compared to the closed position, and in which open position the valve ball does not block the valve seat and thereby allowing gas in the cavity to drain from the valve via the drain channel. A centrifugal separator and a method for draining gas from the inlet of a centrifugal use the valve.

In some embodiments, a solenoid valve device may include a body having a first fluid conduit, a second fluid conduit, and a chamber which may couple the first fluid conduit and a second fluid conduit together. A valve seat may be positioned within the chamber and all fluid passing through the chamber may be directed through the valve seat. A seal element may be movably positioned within the chamber and the seal element may be movable between a first position, in which the seal element is contacting the valve seat, and a second position, in which the seal element is not contacting the valve seat. A body magnet may motivate the seal element into the first position or the second position. Conversely, an electromagnet may overcome the magnetic communication of the body magnet and motivate the seal element into the second position or the first position.

A solenoid valve includes a support bushing and an armature pin axially movable within the support bushing. The solenoid shield further includes a valve rigidly secured to the armature pin. The valve includes a diverter sleeve having an overlap portion that is radially spaced from at least a portion of the support bushing and extends along a length of at least a portion of the support bushing. The diverter sleeve further includes a deflector surface disposed at an angle relative to a longitudinal axis of the armature pin.

A method for removably securing a component within a bore having a shoulder, includes: forming a housing with a generally cylindrical wall with an open first axial end and a partially closed second axial end having an annular shoulder, and an annular lip section at the first end of the cylindrical housing wall, the lip section having a radially outwardly projecting and circumferentially extending annular ridge, an inner chamfer creating a frustoconical surface with a base toward the housing first axial end and an outer chamfer creating a frustonconical surface with a base toward the housing first axial end; and, inserting the housing into the bore, engaging the bore shoulder, engaging the inner chamfer of the housing lip section with a tool for applying axial force, the tool having a conical surface corresponding to and engageable with the housing inner chamfer, and applying axial force against the inner chamfer by means of the conical surface of the tool.

A turbocharger (10) has an improved wastegate valve assembly (32) wherein a valve member (35) moves freely within a lever arm (34A), and therefore, is displaceable sidewardly across the opening (28) of the wastegate port (28). The valve member (35) and associated seat (36) respectively have male and female forms so as to sealingly engage with each other when the valve body (35) is in the closed position. As such, the valve member (35) can move freely as it engages the seat (36) to provide a tight uniform seal therebetween. Additionally, the seat (36) may be formed as an insert which fits within the wastegate port (28) and is also free floating in the direction extending across the port (28) which further assists in self-centering of the valve member (35) and seat (36).

One-way valve devices can be used within fluid systems. For example, this document provides one-way valves that can be installed within a lumen of a tube, a fitting, and other types of tubular members. In some embodiments, the one-way valve includes a unitary frame and a ball member that is loosely constrained within the confines of the frame.

The present disclosure relates to a duct valve for a clutch assembly of an off-road vehicle. The duct valve is configured to be coupled to a housing of the clutch assembly. The duct valve comprises a first duct attached to the housing and a first valve cage attached to the first duct. The first valve cage is configured to hold a first floatable element therewithin. The first floatable element is configured to have a first buoyancy and is configured to displace towards a first air opening of the first duct corresponding to a level of a liquid to seal the first air opening.