ARTICLE WITH MOISTURE-INSENSITIVE OXYGEN BARRIER PROPERTIES
    145.
    发明申请
    ARTICLE WITH MOISTURE-INSENSITIVE OXYGEN BARRIER PROPERTIES 审中-公开
    具有防潮性氧气阻隔性能的物品

    公开(公告)号:WO1989006664A1

    公开(公告)日:1989-07-27

    申请号:PCT/US1988004427

    申请日:1988-12-12

    CPC classification number: C08G69/36

    Abstract: An article of composition which has a barrier layer of an amorphous nylon copolymer. The copolymer is polymerized from (A) a lactam or aminoalkanoic acid, such as caprolactam, (B) an aralkylene or cycloalkylene diamine, such as m-xylylenediamine, and (C) one or more aromatic diacids, such as isophthalic acid and terephthalic acid. The copolymer barrier layer exhibits excellent oxygen barrier resistance when exposed to moisture.

    VALVE ASSEMBLY FOR INTERNAL COMBUSTION ENGINE
    149.
    发明申请
    VALVE ASSEMBLY FOR INTERNAL COMBUSTION ENGINE 审中-公开
    内燃机用阀组件

    公开(公告)号:WO1989003927A2

    公开(公告)日:1989-05-05

    申请号:PCT/US1988003548

    申请日:1988-10-12

    CPC classification number: F01L1/16 F02B1/04

    Abstract: An especially adapted engine valve (28) includes structure which damps motion of the valve (28) during its final closure to seat. A spool portion (38) of the valve (28) establishes, with its associated guideway (42), a damping chamber (40) into which oil under pressure may be admitted via a feed passageway (47). Oil is discharged through a flow-restricted bleed passageway (48) during closure of the valve (28) so as to create beneficial pressure buildup within the damping chamber (40) and thus reduce the valve's closing velocity. Since the damping functions occur passively (i.e. dependent only upon the relative location of the valve within its guideway), gentle closing of the valve (28) can occur at any point on the cam (12) lobe thereby making it especially well suited for use in ''lost motion'' valve control systems.

    ELECTRONIC CONTROL FOR FLUID PRESSURE BRAKING SYSTEM
    150.
    发明申请
    ELECTRONIC CONTROL FOR FLUID PRESSURE BRAKING SYSTEM 审中-公开
    流体压力制动系统的电子控制

    公开(公告)号:WO1989003781A1

    公开(公告)日:1989-05-05

    申请号:PCT/US1988000143

    申请日:1988-01-21

    CPC classification number: B60T13/66 B60T13/662

    Abstract: A fluid pressure braking system includes pressure sensors (50, 54, 56, 58) in each of the supply and service reservoirs (16, 28, 30) and in the supply line (46) to the trailer. The system includes an air compressor (12) which is loaded and unloaded in response to variations in the pressure level in the supply reservoir (16) by actuation of a solenoid valve (22) by an electronic control module (26) which is responsive to the pressure sensors. The system includes spring brakes (66) which are controlled by the control module (26) through actuation of solenoid valves (74). The control module (26) is similarly responsive to the pressure level in the supply line (46) to control a solenoid valve (42) which controls communication through the supply line (46).

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