中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

5 records (took 0.02 seconds)

    SERVO ACTUATOR
    1.
    发明专利
    SERVO ACTUATOR 失效

    公开(公告)号：JP2000234601A

    公开(公告)日：2000-08-29

    申请号：JP2000026585

    申请日：2000-02-03

    Applicant: MOOG INC

    Inventor： FLAVELL DAVID J

    IPC: F15B9/09 ,  B64C13/42 ,  F15B18/00 ,  F15B20/00

    Abstract: PROBLEM TO BE SOLVED: To provide an electrical hydraulic servo actuator with redundancy suitable for fail safe. SOLUTION: In a redundant control system, a logic crossing coupling is arranged between independent servo actuators 101A and 101B that have hydraulic actuators 106A and 106B, respectively. Logic valve devices 103A, 103B, 104A, 104B, 105A, 105B are connected to the hydraulic actuators 106A, 106B and control valves 102A, 102B. A hydraulic pressure input signal and an electrical input signal are inputted to the devices 103A, 103B, 104A, 104B, 105A, 105B. The redundant control system is suitably operational in a mode that the hydraulic actuators 106A, 106B operate or freely operate in response to or unrelated to a control signal, or in a mode that movement of a load controlled as a function of a hydraulic signal and an electrical signal inputted to the logic valve devices 103A, 103B, 104A, 104B, 105A, 105B unrelated to the control signal and is constructed such that the logic valve devices 103A, 103B, 104A, 104B, 105A, 105B generate hydraulic pressure output signals that become input signals of other actuators.

    Hydraulic logic cross-coupling between separate redunant servoactuators
    5.
    发明专利
    Hydraulic logic cross-coupling between separate redunant servoactuators 未知

    公开(公告)号：GB2346456A

    公开(公告)日：2000-08-09

    申请号：GB0001091

    申请日：2000-01-19

    Applicant: MOOG INC

    Inventor： FLAVELL DAVID J

    IPC: F15B9/09 ,  B64C13/42 ,  F15B18/00 ,  F15B20/00 ,  G05D1/00

    Abstract: A redundant control actuation system (100) provides hydraulic logic cross-coupling between separate servoactuators (101A, 101B). Each servoactuator has a control valve (102A, 102B) arranged to provide a hydraulic output in response to a control signal. Each actuator also has a hydraulic actuator (106A, 106B) arranged to move a load in response to the hydraulic output from its associated control valve. Logic valve means (103A, 104A, 105A, 103B, 104B, 105B) are operatively associated with the control valves (102A, 102B) and actuators (106A, 106B). Each logic valve means is supplied with hydraulic and electrical input signals. Each logic valve means is operatively arranged between the associated control valve and actuator to either (a) permit control operation of the actuator in response to the control signal, (b) permit the actuator to move freely and independently of the control signal, or (c) restrain movement of the load independently of the control signal, as a function of the supplied input signals. Each logic valve means is operatively arranged to provide a hydraulic output signal. The hydraulic output signal of each servoactuator is provided as the hydraulic input signal to the other servoactuator via lines 116, 118.

Patent Agency Ranking