摘要:
A Joule-Thompson or other throttling valve comprises an outlet channel (7) in which swirl imparting means (10) impose a swirling motion to the cooled fluid stream discharged by the valve, thereby inducing liquid droplets to swirl towards the outer periphery (7A) of the fluid outlet channel (7) and to coalesce into enlarged liquid droplets (17) which can be separated easily from a gaseous or other carrier fluid.
摘要:
An electronic damping system for a wheeled vehicle such as a bicycle includes a damping assembly having first and second members (120, 130), a valve (218) having an opening and a motor (221) which can be used to control the area of the opening. A sensor (201) is used to indicate the relative position of the first and second members (120, 130) and an electronic damper controller (160) coupled to the sensor computes a control signal to provide a desired damping force.
摘要:
An active, hydraulic suspension system for a wheeled vehicle is disclosed. The system utilizes an on-board damper controller, a damper having a pair of telescoping tubes and a motor-adjusted hydraulic channel, a position and direction sensor to achieve comprehensive control over dampening performance. The rider is allowed to change the damping performance by selecting a control map which dictates the damping force applied based on the position, direction of motion, and velocity of one tube relative to the other. The system continuously varies the amount of dampening in real time in response to the terrain conditions, as determined by a sensor. A processor in the damper controller accepts the sensor input and outputs motor control signals based on information existent in the control map. The motor adjusts the flow of a viscous liquid through the hydraulic channel of the damper in accordance with the control signals received from the damper controller to achieve the desired damping performance. An external computer may be used to load control maps to the damper controller for subsequent selection by a rider.
摘要:
An essentially fully balanced plug valve is presented in which the flow control contour is interior to the moving member. The sealing edge of the moving member is at the exterior surface relative to the interior contour. This sealing edge is formed by use of matching angles on the interior of the moving member and the exterior of the stationary member. As a result, operation of the plug is fully balanced with the internal fluid pressure of the liquid therein. The sealing surface of the stationary member is positively retained therein to prevent blowout of the sealing surface. Should failure of the sealing surface occur, a secondary metal-to-metal seal will provide fluid containment albeit possibly at a reduced containment level.
摘要:
An active, hydraulic suspension system for a wheeled vehicle is disclosed. The system utilizes an on-board damper controller, a damper having a pair of telescoping tubes and a motor-adjusted hydraulic channel, a position and direction sensor to achieve comprehensive control over dampening performance. The rider is allowed to change the damping performance by selecting a control map which dictates the damping force applied based on the position, direction of motion, and velocity of one tube relative to the other. The system continuously varies the amount of dampening in real time in response to the terrain conditions, as determined by a sensor. A processor in the damper controller accepts the sensor input and outputs motor control signals based on information existent in the control map. The motor adjusts the flow of a viscous liquid through the hydraulic channel of the damper in accordance with the control signals received from the damper controller to achieve the desired damping performance. An external computer may be used to load control maps to the damper controller for subsequent selection by a rider.
摘要:
A pressure washer (10) for delivering a liquid under high pressure has an inlet conduit (30) connected to a liquid supply and an outlet conduit (50) coupled to a spray nozzle (18) which can be operated to control the delivery of liquid through the spray nozzle (18). Liquid, e.g., water, is pumped from the inlet (30) to the outlet conduit (50), elevating its pressure significantly. A bypass conduit (56) enables recirculation of the liquid from the outlet (50) to the inlet conduit (30). A bypass system (14), disposed between the outlet conduit (50) and the bypass conduit (56), includes a shuttle valve (70) which moves between first and second positions at which it respectively blocks or opens the liquid path from the outlet conduit (50) to the bypass conduit (56). The shuttle (70) is such that, when the liquid pressure on the side of the shuttle (70) facing the spray nozzle (18) is approximately equal to or greater than the liquid pressure in the outlet conduit (50), the shuttle (70) moves to a position which unblocks the bypass conduit (56), approximately equalizing the pressure across the shuttle (70) and protecting the washer's (10) components and enhancing its operability. A nozzle seal arrangement in the pressure washer's pump (12) comprises a pair of seals (230,236) between each piston (190) and cylinder (32) wall of the pump (12). One of the seals pivots in response to side to side wobbling of the piston (190) while maintaining proper sealing conditions.
摘要:
An electromagnetic directional control valve for changing over flow paths of fluid comprises a plunger (16) disposed in a case (10, 10', 42) and being capable of moving from a neutral position in one axial direction by a first solenoid (12A) and in the other axial direction by a second solenoid (12B) to participate in the changeover of the flow paths. First and second stoppers (17A, 17B) bearing against the plunger (16) are moved together with the plunger respectively in one axial direction and the other axial direction. First and second springs (18A, 18B) biase the first and second stopper (17A, 17B) respectively in the direction of abutting against the plunger (16). The plunger (16) is stopped at the first neutral position held by the first and second springs (18A, 18B), at a second position to which the plunger is moved in one axial direction by the first solenoid (12A) against the first spring (18A) and a third position to which the plunger is moved in the other axial direction by the second solenoid (12B) against the second spring (18B).