NON-CONTACT POSITION SENSOR
    132.
    发明专利

    公开(公告)号:AU2002359896A1

    公开(公告)日:2003-07-24

    申请号:AU2002359896

    申请日:2002-12-31

    Abstract: A non-contact position sensor including a plurality of sensor elements configured in an array. Each of the sensor elements is configured to provide an output associated with each of a plurality of positions of a sensor control element relative to the position sensor, whereby a separate combination of the outputs is provided for each of the positions. In one embodiment, the sensor elements may be Hall effect sensors, and the sensor control element may be a magnet. In another embodiment, the sensor elements may be Hall effect sensors and the sensor control element may be a shunt for blocking a magnetic field the Hall effect sensors. A vehicle seat position sensor system and a method of sensing vehicle seat position are also provided.

    AUTOMATIC CONTROL OF AIR DELIVERY IN FORCED AIR FURNACES

    公开(公告)号:CA2237541A1

    公开(公告)日:1998-11-19

    申请号:CA2237541

    申请日:1998-05-13

    Abstract: A forced air furnace circulation fan controller adjusts the speed of the circulation fan according to the incidence of air delivery restrictions. Upon detecting insufficient air delivery as a function of the temperature of the furnace heat exchanger, the control system increases the circulation fan speed to increase the air delivery within the heating system. The controller utilizes fuzzy logic techniques to determine a speed adjustment for the furnace fan motor, based on the value of the furnace heat exchanger temperature. The use of fuzzy logic control allows the circulation fan controller to provide a highly adaptive response to changes in air delivery. The resulting balanced air delivery provides for efficient furnace operation and superior occupant comfort.

    UNLOADER/CHECK VALVE
    137.
    发明专利

    公开(公告)号:CA1161409A

    公开(公告)日:1984-01-31

    申请号:CA391161

    申请日:1981-11-30

    Abstract: UNLOADER/CHECK VALVE An unloader/check valve for use with an air compressor comprising a one-piece valve body, a valve member slidable in the body between open and closed positions, biased toward its closed position, the valve having a bleed for unloading the compressor when the valve member is in its closed position, and a dashpot arrangement for damping pulsations of the valve member.

    SPRING-LOADED VALVE
    138.
    发明专利

    公开(公告)号:GB2107832A

    公开(公告)日:1983-05-05

    申请号:GB8231473

    申请日:1982-03-15

    Inventor: PURVIS MICHAEL J

    Abstract: This invention relates to the field of spring-loaded check valves. Prior check valves have required a great number of parts and thus complicated assembly steps were required; this rendered inspection of the check valve more difficult. This invention comprises a check valve which has a minimum number of parts, which is easy to assemble and whose valve member and seat are readily inspected without disassembly of the valve. The check valve includes a coil spring (29) which functions not only to bias the valve member (33) toward its seat (25) but also to retain the valve member in assembly with the valve.

    139.
    发明专利
    未知

    公开(公告)号:IT8125152D0

    公开(公告)日:1981-11-18

    申请号:IT2515281

    申请日:1981-11-18

    Abstract: An unloader/check valve for use with an air compressor comprising a one-piece valve body, a valve member slidable in the body between open and closed positions, biased toward its closed position, the valve having a bleed for unloading the compressor when the valve member is in its closed position, and a dashpot arrangement for damping pulsations of the valve member.

    BALL VALVE
    140.
    发明专利

    公开(公告)号:CA1056793A

    公开(公告)日:1979-06-19

    申请号:CA274342

    申请日:1977-03-21

    Abstract: A ball valve having a valve body, a main flow passage therethrough, a lateral bore extending generally perpendicularly through the passage, and a unitary ball valve member received in the lateral bore. The ball valve member has a spherical ball portion with an aperture therethrough and a pair of circular sealing heads, one on each side of the ball portion. Each of the sealing heads carries a seal which is slidably and sealingly engageable with the walls of the lateral bore. The sealing heads are of substantially equal diameter so that pressure forces acting on the ball valve member which tend to move the latter axially within the bore are balanced. A seal body is insertable into a main flow passage of the valve body from one end thereof for sealingly engaging the ball portion after the ball valve member has been installed in the lateral bore.

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