A hydraulic oil control valve is coaxially disposed with a rotational axis of a valve timing adjustment device. The hydraulic oil control valve includes a sleeve and a spool sliding in an axial direction within the sleeve. The spool has an inner space serving as a drain passage through which the hydraulic oil discharged from a phase shifting portion flows. The spool defines a drain inlet that guides the hydraulic oil discharged from the phase shifting portion into the drain passage. At least one of the sleeve or the spool defines an opening through which the hydraulic oil in the drain passage is discharged from the hydraulic oil control valve. A protrusion is formed between the drain inlet and the opening to extend radially inward beyond the drain inlet.

A solenoid valve includes a valve portion and a solenoid portion. The valve portion has a sleeve and a valve body. The solenoid portion includes a tubular coil portion, a magnetic yoke having a side surface portion and a bottom portion, a columnar plunger, a shaft, a stator core having a core shaft hole for sliding the plunger in the axial direction, and a base portion having a base shaft hole. In a radial thickness of the sleeve, a thickness of a part corresponding to an end outer peripheral surface is smaller than a thickness of a sliding portion of an inner peripheral surface of the sleeve, which is a portion on which the valve body slides.

A solenoid for a solenoid-actuated valve includes a coil, a flux tube, a pole piece disposed axially from the flux tube and encircled by the coil, a movable armature disposed in the flux tube and the pole piece, and a latch disposed between the flux tube and the pole piece to selectively latch the armature into at least one position.

A capacity control valve includes a valve housing. A main valve including a valve body is driven by a solenoid, and a main valve seat which is provided between a discharge port and a control port and with which the valve body 51 is allowed to contact. A pressure sensitive valve member forming a pressure sensitive valve with a pressure sensitive body is disposed in a pressure sensitive chamber. The control port and a suction port communicate through an intermediate communication passage by opening the pressure sensitive valve. A slide valve body slides relative to the pressure sensitive valve member to open and close a through-hole communicating with the intermediate communication passage. The slide valve body partitions the pressure sensitive chamber into a Pd side space and a Pc side space, and a Pd-Pc flow passage providing communication between two spaces and is formed in the slide valve body.

The invention relates to a valve device having a valve housing, and comprising a main piston (4) that is arranged in an axially slidable manner in a piston bore of the valve housing (2), via which a first consumer connection (A) and a second consumer connection (B) can be alternately connected to a pressure connection (P) and a tank connection (T1, T2) by way of the action of a first magnetic actuating system (6) and a second magnetic actuating system (8) and comprising two pilot pistons (14, 16). The invention is characterized in that in an actuated state of the respective pilot piston (14, 16), the main piston (4) follows the movement of said pilot piston (14, 16) due to the force ratio adjusting itself thereon, thus actuating the fluid-carrying connection between the pilot chamber (10, 12) of said pilot piston (14,16) and the assignable tank connection (T1, T2) such that pilot oil flows.

A clip filter for a hydraulic valve, the clip filter comprising a carrier frame; and filter elements received in the carrier frame, wherein the carrier frame is configured annular and includes a clip filter lock, wherein a first end of the carrier frame and a second end of the carrier frame are engageable with each other for closing the clip filter, wherein the first end of the carrier frame includes a lug shaped clip element and the second end of the carrier frame includes a recess that is complementary to the lug shaped clip element, and wherein a clip filter lock is configured for a maximized opening force.

Systems and methods for filter orientation on a control valve are provided. In particular, systems and methods are provided for rotationally orienting a filter retention feature with respect to an application fluid passageway to control forces and stresses exerted on the filter retention feature. Additionally, methods for manufacturing a control valve are provided that enable a rotational relationship between a filter retention feature and an application fluid passageway to be constrained.

An electromagnetic drive device includes a through-hole, through which a rod is received, and the rod includes an outer wall surface that is slidable relative to the through-hole. A clearance, which is measured from the outer wall surface of the rod placed in a maximum projected position to an inner wall surface of the through-hole, is smaller than a clearance, which is measured from the outer wall surface of the rod placed in a maximum retracted position to the inner wall surface. Therefore, a retracting-time clearance becomes relatively large, and thereby a frictional force between the rod and a support tubular portion can be reduced. Furthermore, a projecting-time clearance becomes relatively small, and thereby the amount of swing of a distal end of the rod in a radial direction can be reduced.

A control valve includes a valve housing extending along a longitudinal axis. The valve housing defines an inlet port, a first outlet port, and a second outlet port. In addition, the control valve includes a spool guide disposed inside the valve housing and a flow guide belt disposed around the spool guide. The flow guide belt is disposed inside the valve housing. The control valve further includes a spool movably disposed in the spool guide. The spool can move relative to the valve housing along the longitudinal axis between a first spool position and a second spool position. The first outlet port is in fluid communication with the inlet port when spool is disposed in the first spool position.

A hydrogen gas supply device supplies hydrogen gas to a fuel cell stack and includes an electromagnetic pressure regulating valve that regulates the pressure of the hydrogen gas to low pressure. The electromagnetic pressure regulating valve includes a housing, and a valve passage connecting a primary port and a secondary port is formed in the housing. A valve body controls an opening degree of the valve passage and is provided in the housing. A high-pressure sealing member and low-pressure sealing member are provided on an outer periphery of the valve body. The high-pressure sealing member and the low-pressure sealing member are provided in this order from one end side of the valve body to the other end side thereof. The electromagnetic pressure regulating valve further includes a housing pressure equalizing passage connecting the secondary port and a buffer chamber formed between the high-pressure sealing member and the low-pressure sealing member.