Hydraulic fluid supply device and electrical actuator
An electric actuator (1) of the present invention includes: a hydraulic fluid supply device (10), and an actuator (20) actuated in response to an input of hydraulic fluid from the variable-volume pump (12). The hydraulic fluid supply device (10) includes: an adjustable-speed motor (11); the variable...
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| Format: | Patent |
| Sprache: | eng ; fre ; ger |
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| Zusammenfassung: | An electric actuator (1) of the present invention includes: a hydraulic fluid supply device (10), and an actuator (20) actuated in response to an input of hydraulic fluid from the variable-volume pump (12). The hydraulic fluid supply device (10) includes: an adjustable-speed motor (11); the variable-volume pump (12) which is driven by the adjustable-speed motor (11) and ejects hydraulic fluid; an electric motor control unit (13) which controls the adjustable-speed motor (11) so as to achieve an intended rotation speed; and a pump control unit (14) which controls the variable-volume pump (12) so that the ejection volume of the variable-volume pump (12) decreases with an increase in the ejection pressure of the variable-volume pump (12). |
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