摘要:
[Problem to be Solved] To provide a power generation system which makes it possible to improve the degree of freedom of installation. [Solution] A power generation system 1 is provided with: first fluid chambers 10a-10e that contain a fluid; a second fluid chamber 20 that contains the fluid; a communication flow channel 30 that communicates the first fluid chambers 10a-10e and the second fluid chamber 20 with each other; first pistons 40a-40e that are disposed such that the fluid in the first fluid chambers 10a-10e can be pressed; a second piston 50 that is disposed such that the fluid in the second fluid chamber 20 can be pressed; and power generation modules 60a-60e that convert pressing forces of the corresponding first pistons 40 into electricity using piezoelectric elements 63. The power generation elements 63 of the power generation modules 60a-60e generate power in the cases where the second piston 50 is pressed, and the pressing force is transmitted to the first pistons 40a-40e via the fluid, then the piezoelectric elements 63 are indirectly pressed due to the force thus transmitted.
摘要:
A method for operating a hydraulic system with a plurality of consumers (VBi, 8-11) an electrically controllable pressure supply device (101, 5) and an electrically actuable inlet valve (EVi, 6a-6d), per consumer, which inlet valve (EVi, 6a-6d) is arranged between the pressure supply device (101, 5) and the consumer, wherein a pressure/volume relationship (F i ) is predefined or determined for each consumer (VBi, 8-11), wherein each consumer (VBi, 8-11) is assigned to a first group (A) or a second group (B) of consumers, wherein the first group (A) of consumers comprises at least one consumer, and wherein, in order to set predefined consumer-specific setpoint pressures (P i Setp ), the first group (A) of consumers (VB1, VB2) is connected via the respectively opened inlet valve (EV1, EV2) to the pressure supply device (101, 5), and the inlet valves (EV3, EV4) of the consumers (VB3, VB4) of the second group (B) are closed, wherein the inlet valve (EVb1) of a single, selected consumer (VBb1) of the second group (B) is opened while being regulated to build up a pressure, and a brake system for motor vehicles.
摘要:
Circuit (10) de transmission hydraulique comprenant trois ou quatre moteurs élémentaires hydrauliques (12,14,16) couplés, chaque moteur élémentaire présentent une première et une deuxième enceinte secondaire (12A,14A,16A,12B,14B,16B). Le circuit comporte quatre valves de distribution (32,34,36,38 ;3x) dont les voies de sortie respectives peuvent être reliées sélectivement à deux conduits principaux d'alimentation et d'échappement de fluide du circuit. Les voies de sortie des première et deuxième valves sont reliées à au moins une des premières enceintes secondaires (12A,14A,16A,18A) ; celles des troisième et quatrième valves sont reliées à au moins une des secondes enceintes secondaires (12B,14B,16B,18B). Chacun des moteurs élémentaires présente une première enceinte secondaire reliée à une seule valve parmi les première ou deuxième valve et une seconde enceinte secondaire reliée à une seule valve parmi les troisième ou quatrième valve. Les paires de valve ainsi reliées respectivement auxdits moteurs élémentaires sont toutes distinctes deux à deux.
摘要:
A fluid transmission that employs a fluid to transmit a force, comprising a conduit for the fluid made from heat shrink polymer tubing, wherein at least a portion of the heat shrink polymer tubing is shrunken, whereby the force can be transmitted by the fluid from a first or proximal end of the conduit to a second or distal end of the conduit. Also, an actuator and methods for manufacturing the transmission and actuator.
摘要:
A fluid transmission that employs a fluid to transmit a force, comprising a conduit for the fluid made from heat shrink polymer tubing, wherein at least a portion of the heat shrink polymer tubing is shrunken, whereby the force can be transmitted by the fluid from a first or proximal end of the conduit to a second or distal end of the conduit. Also, an actuator and methods for manufacturing the transmission and actuator.
摘要:
The unit of the hydraulic control of the bottom and aeration valves serves for bottom discharge of liquid and viscous substrates from railway cisterns with automatically protection against occurrence of underpressure during discharging and with exact signalization of opened and closed position of these valves. By the manual control-levers (3), through kinematical lever gear created by the driver (4), the gear-lever (5) and the swinging control-lever (6), is controlled the control bellows hydraulic cylinder (11) with closed hydraulic circumference in serial connection with the hydraulic bellows unit (33) of the aeration valve (29) and with the hydraulic bellows unit (35) of the bottom valve (30). The supporting head (12) of the control bellows hydraulic cylinder (11) is through the signal-lever (14), the signal draw rod (17) and the signal driver (20) kinematically connected with the pointers (22) of opened and closed position of valves and is bounded by blocking reaction by help of the double-arm lever (24) and by rotating of driver (4) of the manual control-levers (3).
摘要:
The invention relates to a device for controlling the steering of a commercial vehicle comprising: two front wheels (126, 127) that can be oriented according to a first turning angle by means of at least one first actuator (120); two rear wheels (136, 137) that can be oriented according to a second turning angle by means of at least one second actuator (130); and a power circuit (101) comprising a pressurised fluid source and power components (111, 112, 113, 114, 115) that can transmit the hydraulic power to the actuators, said power components (111, 112, 113, 114, 115) being controllable in such a way as to configure the power circuit (101) according to different coupling modes between the front wheels (126, 127) and the rear wheels (136, 137). The inventive device can be characterised in that it comprises a control circuit (151) containing a pressurised fluid source and control components (153, 154, 155, 156, 163) that are electrically controlled by an electrical control unit, said control components (153, 154, 155, 156, 163) being able to transmit hydraulic commands relating to one of said determined coupling modes to the power components (111, 112, 113, 114, 115). Furthermore, the control components are hydraulically connected in such a way that, in the event of a fault in the electrical control of the control components (153, 154, 155, 156, 163), the commands are upheld in such a way as to permanently maintain the configuration of the power circuit (101) according to the current coupling mode between the front wheels (126, 127) and the rear wheels (136, 137).