摘要:
The invention relates to a lifting system, comprising a piezoelectric actuator (5), a support (15), and a hydraulic stroke multiplier (10) having an input and an output side, wherein the input side of the hydraulic stroke multiplier is connected to the piezoelectric actuator (5), and the output side of the hydraulic stroke multiplier is connected to the support (15). In the method for electrically testing an electronic component, the component is placed on the support of such a lifting system and is lifted for positioning relative to a test contact. The vibration damper comprises such a lifting system. The machine assembly has a machine and such a vibration damper.
摘要:
Disclosed is a pressure regulator which can be used particularly in a CNG-operated motor vehicle as an electronically controlled pressure reducer for maintaining the gas pressure constant on the injection valve used for filling the respective cylinder. Said pressure regulator is composed of a control unit (1), a pressure reducer (3) that is controlled by the control unit (1), and a throttle (2) which connects the gas outlets (20, 40) of the working chamber (17) of the control unit (1) and the pressure reducer (3). A piezoelectric actuator (11) which affects the valve (21, 22) of an overflow device (14) makes it possible to specifically modify the gas pressure (P2) in the working chamber (17) of the control unit (1) and simultaneously influence the position of the valve (38, 39) of the overflow device (33) of the pressure reducer (3), thus allowing the output pressure (Pout) of the pressure reducer (3) to be adjusted to a predefined desired value.
摘要:
The invention relates to a tracking system (1) for a solar installation, in particular a thermal solar collector or a photovoltaic module, comprising a stationary bearing (10) of a shaft (20) that can rotate with respect to the bearing (10), on which the solar installation (3) is disposed, and a drive unit (30) for rotating the shaft (20) relative to the bearing (10). The tracking system is characterized in that the drive unit (30) comprises a first and a second actuator (31, 32) that can be actuated such that a drive disc (21) rotationally fixed to the shaft (20) can be clamped or released by means of a longitudinal displacement of the first actuator (31), and a displacement of the first actuator (31) tangentially to the drive disc (21) can be brought about by means of the second actuator (32). A rotation of the shaft (20) can thus be brought about by the drive disc (21) clamped by means of the first actuator (31).