摘要:
A servo pump for use in a hydraulic system. The servo pump is constituted by a variable displacement type hydraulic pump adapted to be driven by a high-speed motor and to hydraulically drive an actuator. The motor and the pump are housed in a common casing. The motor shaft and the pump shaft are integrated to form a common rotary shaft which is supported rotatably at both its ends by end bearings and at its intermediate portion by an intermediate bearing.
摘要:
A rotary valve in which a valve disc provided disposed in a casing is rotated by a driving device, including a disc-shaped rotor provided in a portion of the valve disc and with a plurality of fan-shaped windings arranged in the circumferential direction, magnets provided in such a manner that the polarities thereof are alternately varied in the circumferential direction and a yoke disposed with a predetermined gap from the magnets. The said rotor is disposed between the magnets and the yoke and constitutes a magnetic circuit for rotating the valve disc directly by an electromagnetic power generated in the magnetic circuit.
摘要:
A fuel supply system for a direct injection engine which has a variable capacity single cylinder plunger pump and two fuel rails. Offices are disposed at the upstream side inlets of both fuel rails, respectively. At the opposite sides to the inlet sides, the fuel rails are interconnected with each other by a connecting pipe. Using this fuel supply system, it is possible to increase a characterisitic frquency of the fuel columns, and to stabilize, suppress, and smooth out pressure pulsation in the fuel rails, thereby reducing uneven fuel injections into the cylinders. The system may have a cam which drives a plunger of a high pressure fuel pump to reciprocate once for every two combustions in two engine cylinders.
摘要:
For the purpose of providing a gas circuit breaker with a structure of hydraulic pressure operation system capable of detecting the occurrence of an incomplete closed state of the valves therein to prevent their erroneous motion during the subsequent motion, and a liquid-pressure driving system to be used therefor, a check valve is arranged so as to suppress the flow into the space on the side of the downstream of a closed-circuit operation spool valve, wherein the space on the side of the downstream of the closed-circuit operation spool valve is connected through a second diaphragm to a low-pressure oil tank and the operation time or operation number of a liquid-pressure pump is measured.
摘要:
A brake control apparatus for a vehicle having brake devices for generating pad-pressing forces at respective wheels includes brake control units for individually controlling the pad-pressing forces at the respective wheels; a storing unit for storing drive data required for controlling the pad-pressing force at each wheel; a vehicle-driving-state detector for detecting a driving state of the vehicle; and a vehicle controller for controlling a vehicle driving state using the brake control unit for each wheel. Memory data representing the relationship between a motor position and the pad-pressing force is updated using the state of brake actuators obtained when the driving state of the vehicle is stabilized by operating the brake devices during braking.
摘要:
A brake control apparatus for a vehicle having brake devices for generating pad-pressing forces at respective wheels includes brake control units for individually controlling the pad-pressing forces at the respective wheels; a storing unit for storing drive data required for controlling the pad-pressing force at each wheel; a vehicle-driving-state detector for detecting a driving state of the vehicle; and a vehicle controller for controlling a vehicle driving state using the brake control unit for each wheel. Memory data representing the relationship between a motor position and the pad-pressing force is updated using the state of brake actuators obtained when the driving state of the vehicle is stabilized by operating the brake devices during braking.
摘要:
A direct-operated servo valve which exhibits stable damping characteristics. The servo valve is characterized in that a viscous fluid is charged in the gap between a stator and a movable element. The velocity of a valve member is detected and a feed back the velocity signal is obtained by this detection so as to enable a damping of the motion of the valve member.
摘要:
The unevenness of injection rates of cylinders is reduced in a fuel supply system of a direct injection engine which uses a variable-displacement single plunger pump. The unevenness of injection rates of cylinders can be reduced by effecting a control such that the cam 100, which drives the high-pressure fuel pump 101, makes one reciprocation, while the engine makes explosions in two cylinders, and by causing the controller 55 to extend the injection time width of one of two injectors 54 which inject during one discharge of the high-pressure fuel pump and to shorten the injection time width of the other injector.
摘要:
A method of and apparatus for effecting slitting rolling on a steel sheet, wherein a wide steel sheet is slit in the breadthwise direction into a plurality of steel sheets having smaller width and the slit steel sheets are moved in the breadthwise direction to form and maintain a predetermined distance therebetween. The steel sheets are then rolled independently to have edge drops on both breadthwise ends thereof, and, thereafter, the slit steel sheets having edge drops are subjected to a plating step. According to the invention, it is possible to obtain plated steel sheet product of high quality by slitting rolling.
摘要:
A variable displacement vane pump includes a first body, a second body, an adapter ring, a cam ring, and a rotor. The first body includes a cylinder portion, and a base portion covering a first longitudinal end of an inner space of the cylinder portion. The second body covers a second longitudinal end of the inner space of the first body. The adapter ring has an outer radial periphery fitted and fixed to an inner radial periphery of the cylinder portion of the first body. The cam ring is mounted inside the adapter ring and supported by the adapter ring for lateral motion in contact with the contact area of the adapter ring. The rotor is mounted inside the cam ring. The adapter ring has a radial thickness that gradually increases when followed longitudinally of the adapter ring from the base portion of the first body toward the second body.