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    SYSTEM FOR CONTROLLING THE KNEELING OPERATION OF AIR SUSPENSION EQUIPPED TRANSIT VEHICLES
    3.
    发明专利
    SYSTEM FOR CONTROLLING THE KNEELING OPERATION OF AIR SUSPENSION EQUIPPED TRANSIT VEHICLES 未知

    公开(公告)号：CA1178302A

    公开(公告)日：1984-11-20

    申请号：CA399639

    申请日：1982-03-29

    Applicant: VAPOR CORP

    Inventor： CONDON JAMES E ,  ROTH CARL W ,  GRITCHEN RALPH A

    IPC: B60G11/26

    Abstract: A system for controlling the kneeling operation of air suspension equipped transit vehicles includes air suspension members mounted at the wheels of the transit vehicle and a fluid reservoir. A fluid circuit is included that communicates the reservoir with each of the air suspension members. An exhaust control valve and a fluid flow control valve are included in the circuit at each air suspension member. The system also includes a control valve for the front wheels of the vehicle and a by-pass valve for bypassing the control valve for the front wheels.

    DOOR OPERATING ASSEMBLY
    4.
    发明专利
    DOOR OPERATING ASSEMBLY 未知

    公开(公告)号：CA1265387A

    公开(公告)日：1990-02-06

    申请号：CA516982

    申请日：1986-08-27

    Applicant: VAPOR CORP

    Inventor： CONDON JAMES E ,  SHANKLAND NICHOLAS B

    IPC: B61D19/02 ,  E05F15/04 ,  E05C7/06

    Abstract: DOOR OPERATING ASSEMBLY A door operating assembly (10) for opening and closing vehicle doors at a constant door edge force includes a frame (12). A teeter lever assembly (24) is pivotally mounted on the frame and is connected to a connecting rod assembly connecting the teeter lever assembly and the vehicle doors. A cylinder (20) is mounted on the frame and includes a reciprocally mounted rod (22). The rod is reciprocated by pressurized air introduced into the cylinder. The rod is connected to the teeter lever assembly to rotate the teeter lever assembly. The teeter lever assembly includes a variable diameter cam (70). A spring (62) for closing the doors is secured at a first end (64) to the frame and at a second end (68) to a flexible connection member (66). The flexible connection member connects the spring to the cam and wraps around the outer periphery of the cam upon door opening. The energy stored in the spring at full extension is used to close the doors. To maintain the force on the doors constant during opening and closing, the cam provides a larger moment arm in the door closed position than the door open position. To provide closing force for the door an accumulator (76) may be provided. The accumulator includes a container in fluid communication (78) with a vent in the cylinder. As the doors open, air in the cylinder is forced out the vent and into the container. During door closing, air accumulated in the container reenters the cylinder to extend the rod and close the door. An adjustable relief valve (84) may be included with the container to maintain pressure in the container below the source pressure for the cylinder.

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