A solenoid operated valve includes a valve block defining a valve lumen, a poppet slidably disposed within the valve lumen, a solenoid including a core defining a core lumen aligned with the valve lumen, and an armature assembly. The armature assembly includes an armature disc, an armature guide having a hollow cylindrical body defining an armature guide passage, and an armature stud disposed within the armature guide passage. The armature stud is in communication with the poppet so that axial movement of one is translated into axial movement of the other. The valve further includes a coil cover enclosing the solenoid, and a guard disposed to prevent contact between the armature assembly and an adjacent component of the valve. A method of assembling a solenoid operated valve includes placing a shim between the armature disc and the core, and pressurizing and energizing the valve.

A solenoid valve in which a plunger is disposed in an accommodation space inside a solenoid unit, includes: a first breathing flow passage extending in a circumferential direction on an outer periphery of a stator to communicate with an outside of the solenoid valve; a second breathing flow passage extending from the first breathing flow passage in an axial direction at a part in the circumferential direction to communicate with a first space formed between the stator, a sleeve, and a spool; and a third breathing flow passage extending in the axial direction on an inner periphery of the stator to allow communication between the first space and a second space.

An adjustable damping valve arrangement for a vibration damper includes a main stage valve with a main stage valve body which is guided in a damping valve housing so as to be axially movable. The damping valve housing has a housing insert which is separate from the damping valve housing and in which the main stage valve body is guided.

An adjustable damping valve arrangement for a vibration damper includes a main stage valve with a main stage valve body which is guided in a damping valve housing so as to be axially movable. The damping valve housing has a housing insert which is separate from the damping valve housing and in which the main stage valve body is guided.

A bi-layer protective coating for a metal component, the bi-layer protective coating comprising a bond coating that is metallurgically fused to a substrate of the metal component, wherein the bond coating comprises one or more rare metals and a top coating that is mechanically bonded to the bond coating, wherein the top coating comprises one or more metal oxides, or one or more metal carbides.

A bi-layer protective coating for a metal component, the bi-layer protective coating comprising a bond coating that is metallurgically fused to a substrate of the metal component, wherein the bond coating comprises one or more rare metals and a top coating that is mechanically bonded to the bond coating, wherein the top coating comprises one or more metal oxides, or one or more metal carbides.

An electromagnet of an electromagnetically actuated fluid valve includes a magnet core that receives a coil, and an armature unit that can be moved axially relative to the coil in the magnet core. The electromagnet further has a device for damping a stop of the armature unit against the magnet core. The device has a flow cross-section for a medium, the flow cross-section decreasing when the armature unit is moved. The cross-section can be formed by a cone that interacts with a counter surface.

An electromagnetic actuating device, in particular for actuating an hydraulic slide valve of an automatic transmission. It has a pole body, an armature element having a first channel that extends axially overall, and an actuating element, which is separate from the armature element, the armature element being guided in the pole body, and first effective section of the armature element on the end face is at least intermittently in contact with a second effective section of the actuating element on the end face, the first channel fluidically communicating with a second channel implemented in or on the actuating element when the effective sections are in contact.

The diaphragm valve shown in my U.S. Pat. No. 6,615,774 is modified to improve performance by providing multiple overlapping springs to provide increased spring life and different stages of resistance on the diaphragm, a multi-arm housing having holes and tapered edges in each arm to increase air flow, a self seating seal in the housing which contacts the diaphragm, and a diaphragm guide surrounding the guide shaft having lands and spaces about the shaft in capture lubrication and vibration dampening holes surrounding the lands and spaces.

A bi-stable solenoid device is proposed, comprising an armature, which is linearly movable between two opposite end stops and comprising a damping unit, which is in communication with the armature and which is configured to dampen and/or to prevent an impact of the armature on at least one of the end stops by a compression and/or an expansion of a gas volume.