FLUID TEMPERATURE CONTROL SYSTEM
    5.
    发明专利

    公开(公告)号:CA1152471A

    公开(公告)日:1983-08-23

    申请号:CA364717

    申请日:1980-11-14

    Abstract: FLUID TEMPERATURE CONTROL SYSTEM Fluid temperature control system for providing a supply fluid at a select temperature by warming or cooling a first fluid with a controlled flow of a second fluid. The control of the second fluid flow is achieved by a modulation valve adjustable in response to the pressure of a supply of servo fluid which is itself adjusted in response to the temperature of the supply fluid. The adjustment of the servo fluid pressue by the control system is such that the change in servo fluid pressure from a steady state condition is initially great, diminishing with time to a lesser, steady state value, thereby enhancing the transient response of the control system. H971-EC

    METHOD AND APPARATUS FOR PREVENTING CABIN DEPRESSURIZATION

    公开(公告)号:CA1291358C

    公开(公告)日:1991-10-29

    申请号:CA563132

    申请日:1988-03-31

    Inventor: GOODMAN ROBERT B

    Abstract: Method and Apparatus for Preventing Cabin Depressurization An environmental control system (ECS) (10) utilizes an override valve (25) to prevent accidential aircraft cabin (16) depressurization. An ECS override valve (26) determines the difference between the pressure of air in a cabin and the pressure of air input to the cabin. If the pressure of the air input to the cabin is less than a given amount more than the pressure of the air in the cabin, the valve interrupts a lower pressure signal provided by the pilot so that the pressure of the air input to the cabin is greater than the given amount more than the pressure of the air in the cabin.

    CHECK VALVE
    9.
    发明专利

    公开(公告)号:CA1187377A

    公开(公告)日:1985-05-21

    申请号:CA411990

    申请日:1982-09-22

    Abstract: Check Valve A low pressure drop check valve includes an apertured, streamlined guide body (45) mounted on struts (40) which accommodate thermal and fluid loading and also includes a streamlined poppet or valve element (35) disposed within a housing. Forward flow through the valve unseats the valve member, which receives therewithin a face (50) of the guide body allowing flow around the valve member and guide body. Reverse flow is accommodated by apertures (60) and (65) in the guide body, flow through the apertures being applied to an inner surface of the valve element, thereby seating the valve element for blocking such reverse flow. The check valve is also provided with means (70) and (85) for minimizing valve element oscillation and bounce. Maintenance of the valve in an open condition is enhanced by maintenance of a low pressure region downstream of the poppet.

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