摘要:
In a rotary servo valve (1) provided with at least two kinds of pump port (33, 39) for high and low pressures, a spool (11) that is free to rotate and free to reciprocate linearly is installed into a spool guide hole (7) of the valve main body (9), a servo motor (15) that rotates and drives the spool and a linear type actuator (13) that reciprocatedly travels are disposed, and the pump ports are selectively changed over by the reciprocation of the spool, and cylinder ports are selectively changed over by the rotation and at the same time the flow rate is controlled.
摘要:
A die body includes a die hole for punching a work. A core is provided in the die body. The core includes a discharge hole which is in communication with the die hole. The core is provided with a plurality of fluid injection ports through which fluid is injected downward of the discharge hole. The die body is provided with inflow ports through which compressed fluid flows into the fluid injection ports. The core is made of resin. The discharge hole is tapered toward its upper side. An outer peripheral surface of the die body is provided with a peripheral groove which is in communication with the inflow ports.
摘要:
A die body includes a die hole for punching a work. A core, including a discharge hole, which is in communication with the die hole, is provided in the die body. The core is provided with a plurality of fluid injection ports through which fluid is injected downward of the discharge hole. The die body is provided with inflow ports through which compressed fluid flows into the fluid injection ports. The core is made of resin. The discharge hole is tapered toward its upper side. An outer peripheral surface of the die body is provided with a peripheral groove which is in communication with the inflow ports.
摘要:
A die body includes a die hole for punching a work. A core, including a discharge hole, which is in communication with the die hole, is provided in the die body. The core is provided with a plurality of fluid injection ports through which fluid is injected downward of the discharge hole. The die body is provided with inflow ports through which compressed fluid flows into the fluid injection ports. The core is made of resin. The discharge hole is tapered toward its upper side. An outer peripheral surface of the die body is provided with a peripheral groove which is in communication with the inflow ports.
摘要:
A head-mounted display includes a left-eye display panel that displays a left-eye image, a left-eye optical system that has an angle of view from 45 to 55 degrees and forms a virtual image of the left-eye image, a right-eye display panel that displays a right-eye image, a right-eye optical system that has an angle of view from 45 to 55 degrees and forms a virtual image of the right-eye image, and a display control unit that controls the screen display of the left-eye display panel and the right-eye display panel.
摘要:
A driving support apparatus includes a collision time prediction unit that predicts a TTC and a TTV, a driving support determination unit that applies the TTC and TTV to a map and determines whether the driving support in the host vehicle is to be implemented or not, a driving support control unit that controls the driving support in the host vehicle, an extension mode determination unit that determines whether a speed of the moving object in a direction crossing the traveling direction is equal to or less than a first threshold value and whether the TTC is equal to or less than a second threshold value or not, and determines that the driving support is to be implemented in the host vehicle in a case where the above conditions are satisfied.
摘要:
It is intended to provide a power generating apparatus of renewable energy type which obtains desired torque rapidly in response to changes of the renewable energy as well as a method of operation such an apparatus. The power generating device which generates power from a renewable energy source, includes a rotating shaft 8 driven by the renewable energy, a hydraulic pump 12 of variable displacement type driven by the rotating shaft 8, a hydraulic motor 14 driven by pressurized oil supplied from the hydraulic pump 12, a generator 20 coupled to the hydraulic motor 14, a high pressure oil line 16 through which a discharge side of the hydraulic pump 12 is in fluid communication with an intake side of the hydraulic motor 14, a pump demand determination unit 44 which determines a displacement demand Dp of the hydraulic pump based on a target torque Td of the hydraulic pump 12 and an oil pressure in the high pressure oil line 16 and a pump controller 46 which adjusts displacement of the hydraulic pump 12 to the determined displacement demand Dp.
摘要:
An object of the present invention is to provide a hydraulic pump structure which improves the ease of mounting the hydraulic pump on the main shaft, and a method of mounting the hydraulic pump which can be performed in a simplified manner. A hydraulic pump unit 10 is formed by unitizing a cylindrical member 46 fit into an outer circumference of the main shaft 12 and a hydraulic pump body 76 arranged on an outer circumferential side of the cylindrical member 46. The hydraulic pump body 76 comprises a ring cam 52 mounted on the outer circumference of the cylindrical member 46, a pump bearing 54, a pump housing 34, a plurality of piston 58 housed in the pump housing 34 and actuated by the ring cam, and a plurality of cylinders 60 which guide the plurality of pistons in a radial direction and are arranged in a circumferential direction, and the hydraulic pump unit 10 is configured such that the pump unit 10 is insertably fixed to the main shaft 12 by the cylindrical member 46.
摘要:
An object of the present invention is to provide a wind turbine generator and a tidal current generator equipped with a hydraulic transmission with a combination of a hydraulic pump and a hydraulic motor and which has a superior productivity and maintainability. The wind turbine generator 1 has the hydraulic transmission 10 for transmitting the rotation energy of a main shaft 8 to a generator 20. The hydraulic transmission 10 includes a hydraulic pump 12 of variable displacement type which is driven by the main shaft 8, a hydraulic motor 14 of variable displacement type which is connected to the generator 20, and a high pressure oil line and a low pressure oil line which are arranged between the hydraulic pump 12 and the hydraulic motor 14. The hydraulic transmission 10 is at least partially constituted of a plurality of modules (M1 to M7).
摘要:
One inventive aspect relates to a laminated capacitor capable of satisfying higher electrostatic capacitance and lower ESL at the same time. A dielectric chip constituting the laminated capacitor has an integral structure formed by alternately laminating a pair of first inner conductor layer and second inner conductor layer which are positioned on the same plane and are held in a non-contact relation, and a pair of third inner conductor layer and fourth inner conductor layer which are positioned on the same plane and are held in a non-contact relation, while a dielectric layer is interposed between the pair of first and second inner conductor layers and the pair of third and fourth inner conductor layers. Voltage of one polarity is applied to the first and fourth inner conductor layers from a first outer electrode through lead-out portions, and voltage of the other polarity is applied to the second and third inner conductor layers from a second outer electrode through lead-out portions.