摘要:
An elastic member made of rubber which urges a coil portion toward a cover is formed into a shape such that the elastic member can be deformed by bending. A rate of change in reaction force of the elastic member with respect to an amount of deformation in a bending deformation region is less than a case where the elastic member is subject to compressive deformation. Therefore, even in the case where the amount of deformation of the elastic member increases due to dimensional variation of a component part, the reaction force of the elastic member does not become excessively large.
摘要:
A system of providing movement along an axis. The system includes a beam, a piezo-electric actuator, and a plate. The beam includes a body that generally extends parallel to the axis between first and second ends. The beam also includes a plurality of arms that extend from the body to respective tips that are spaced from the body. The piezo-electric actuator is coupled to the beam and vibrates the beam so as to induce in the beam a wave between the first and second ends. And the plate is biased toward the body of the beam and contiguously engages the respective tips of the plurality of arms.
摘要:
A valve (10) has a valve body (16) with a longitudinal bore (17), a valve dome (18) connected to the valve body (16), an armature (19) received longitudinally movably in the valve dome (18), and a tappet (36) for transmitting an armature motion to a closing member (40) of a seat valve (41). The tappet (36) is guided with slight radial play over the entire length of the longitudinal bore (17) of the valve body (16) and is provided on its jacket side with at least two separate conduits (37). A valve chamber (31) of the valve (10) that contains the seat valve (41) communicates fluidically with the valve dome (18) through the conduits (37). Residual air in the valve dome (18) can be positively displaced through the conduits (37). The valve (10) can be used in hydraulic brake systems of motor vehicles.
摘要:
The present invention relates to a miniaturized device controlled by electromagnetic signals in the radiofrequency range for controlled release of substances or for controlled sampling of specimens, comprising a reservoir, and a closing system associated to said reservoir, where said closing system is constituted by a valve structure, closing-opening of which is controlled by the electromagnetic signal in the radiofrequency range.
摘要:
A bathroom flusher (10) includes a body having an inlet (12) in communication with a supply line and an outlet (16) in communication with a flush conduit, a valve assembly in the body positioned to close water flow between the inlet and the outlet upon sealing action of a moving member (60, 60A, 60B, 60C, 130, 210, 215, 526, or 628) at a valve seat (70, 70A, 140, 209, 251A, 526 or 625) thereby controlling flow from the inlet to the outlet, and an actuator (62) for actuating operation of the moving member. The bathroom flusher includes one of several novel sensors and is controlled by one of several novel controllers, as described. The controllers may execute a novel control algorithm.
摘要:
The present invention relates to an actuator for automotive air duct damper, and more particular to an actuator for automotive air duct damper with a new structure which allows a precise control on the flow of the air supplied in the indoor space of a car and which is improved in durability. The actuator for automotive air duct damper according to the invention, includes a driving motor and a power transmitting mechanism for transmitting the torque of the driving motor to a damper, said power transmitting mechanism being provided at its final stage with the damper for opening and closing air duct, wherein said actuator further comprises a rotary member provided on a free end of the rotation shaft of the driving motor, and an optical sensor disposed so as to interact with the rotary member.
摘要:
In a proportional solenoid valve, a solenoid main body includes a coil, a valve seat member having a seat portion, a valve element that is displaced in accordance with a current applied to the coil so as to be brought into and out of contact with the seat portion, and a valve guide portion that is arranged coaxially with the seat portion and guides the displacement of the valve element. The housing is attached to the solenoid main body so that a space is formed between the housing and the valve seat member. A seal member made of an elastic material is provided in the space between the housing and the valve seat member.
摘要:
An LPG fuel tank for motor vehicles is provided, inside, with a support, on which there can be installed in a rapid way a pump assembly including a supply pump and the corresponding electric actuating motor. Preferably, the support is also used for installing a level-sensor assembly within the tank.
摘要:
A control valve for controlling fluid flow in a hydraulic control unit of a vehicular brake system includes a valve seat. A sleeve is mounted on the valve seat. An armature core is slidably received in the sleeve. The sleeve includes a first ferromagnetic portion adjacent the valve seat, a second ferromagnetic portion, and an annular region defining an area of increased magnetic reluctance. A part of the first portion of the sleeve defines a radial magnetic pole for the generally radial flow of magnetic flux from the armature to the sleeve. A portion of the valve seat adjacent the armature defines an axial magnetic pole for the generally axial flow of magnetic flux from the armature to the valve seat. Together, the generally radial flow of flux and the generally axial flow of flux generate a force urging the armature from an open position toward a closed position when the coil is energized.
摘要:
A method of operating a butterfly valve that includes defining the stem stroke of the butterfly valve into a first, a second and a third operation regions, wherein the first operation region corresponds to a lower stem stroke, and the third operation region corresponds to a higher stem stroke of the butterfly valve, providing a first set of PID parameters for the first operation region such that the butterfly valve functions as an on/off control valve in the first operation region, providing a second set of PID parameters for the second operation region such that the butterfly valve functions as a percentage control valve in the second operation region, and providing a third set of PID parameters for the third operation region such that the butterfly valve functions as an on/off control valve in the third operation region, wherein the first and third sets of PID parameters produce a greater output level than the second set of PID parameters.