Abstract: A solenoid assembly includes a solenoid having a coil provided with a passageway and a plunger movable within the passageway upon application of electrical power to the coil. A frame holds the solenoid and includes a backstop movably mounted in the frame extending into the coil passageway. The backstop is selectively engaged by the plunger such that the backstop and the plunger are subjected to an impact therebetween. A resilient dampening element is positioned between the frame and the backstop for cushioning the impact between the backstop and the plunger.

Abstract: A solenoid assembly includes a solenoid having a coil provided with a passageway and a plunger movable within the passageway upon application of electrical power to the coil. A frame holds the solenoid and includes a backstop movably mounted in the frame extending into the coil passageway. The backstop is selectively engaged by the plunger such that the backstop and the plunger are subjected to an impact therebetween. A resilient dampening element is positioned between the frame and the backstop for cushioning the impact between the backstop and the plunger.

Abstract: In the vane machine of the invention the wear-causing pressure differences at the opposite ends (16,18) of the vanes (15) are at least partially reduced, especially during the reversing stages of the vanes (15). A compression gate valve (35) without a valve spring integrated in the vane machine is provided for this. It provides a constant pressure ratio of the pressure with which a vane is pressed against the lift ring during a reversing stage to the system pressure. By controlling the pressure ratio in this way an undue amount of friction of the vanes (15) on the lift ring (20) is avoided, also at high system pressure.

Abstract: The simple and economical pressure proportioning regulator valve can maintain a constant pressure ratio of the pressure at its inlet (13) to the pressure in its outlet duct (14), especially during negative pressure changes at the inlet (13). The pressure proportioning regulator valve has a valve housing (11) provided with a throughgoing passage (12) having an inlet (13) and an outlet duct (14); a valve gate (22) in the throughgoing passage (12) having a pressing surface (43) acted on by a pressure at the inlet (13) and another pressing surface (44) acted on by a pressure in the outlet duct (14); a device for reducing both pressures while maintaining their pressure ratio including a first control edge (29) arranged on the valve gate (22) between the inlet (13) and the outlet duct (14) and a device for controlling a flow of a pressurized medium between the outlet duct (14) and the return duct (15) including a second control edge (30) provided on the control member (23) of the valve gate (22).

Abstract: An integrated optics (IO) chip comprising an optical signal path disposed in a principal plane of a crystalline chip having a known chip thickness, anisotropic thermal characteristics, and crystallographic orientation, is mounted to a first surface of a similar thermally anisotropic crystalline material substrate. A second surface of the substrate, spaced from the first surface at a substrate thickness approaching the known chip thickness, is bonded to a mounting surface with a visco-elastic polymer adhesive. Employing this adhesive allows a substantial reduction in the thickness of the substrate as compared to the thickness of the IO chip while allowing vibration and high G-shock loads to be imparted on the structure without affecting the electro-optical properties of the IO chip.