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    Engine valve means and porting
    5.
    发明授权
    Engine valve means and porting 失效
    发动机阀门和端子

    公开(公告)号：US3905342A

    公开(公告)日：1975-09-16

    申请号：US43040274

    申请日：1974-01-03

    Applicant: PERFORMANCE INDUSTRIES

    Inventor： BOYESEN EYVIND

    IPC: F02P5/10 ,  F02B33/00

    CPC classification number: F02P5/103 ,  F02P5/106

    Abstract: 1. AN IGNITION TIMING CONTROL SYSTEM COMPRISING, IN COMBINATION AN AUTOMOTIVE VEHICLE INTERNAL COMBUSTION ENGINE HAVING AN INTAKE SYSTEM INCLUDING A CARBURETOR FOR MIXING FUEL WITH INTAKE AIR TO PRODUCE A COMBUSTIBLE MIXTURE, AND IGNITION PLUGS TO IGNITE SAID COMBUSTIBLE MIXTURE, AN IGNITION DISTRIBUTOR FOR SUPPLYING HIGH VOLTAGE CURRENT TO SAID IGNITION PLUGS OF SAID ENGINE IN ACCORDANCE WITH A PREDETERMINED SEQUENCE, A VACUUM ADVANCE DEVICE RESPONSIVE TO ENGINE INTAKE VACUUM PRODUCED IN SAID INTAKE SYSTEM DOWNSTREAM OF SAID CARBURETOR FOR ADVANCING THE IGNITION TIMING OF SAID IGNITION DISTRIBUTOR, AND VALVE MEANS CONNECTED IN COMMIUNICATION WITH SAID ENGINE INTAKE SYSTEM BOTH UPSTREAM AND DOWNSTREAM OF SAID CARBURETOR AND WITH SAID VACUUM ADVANCE DEVICE, SAID VALVE MEANS BEING ARRANGED TO CONTROL A VACUUM TO BE INTRODUCED INTO SAID VACUUM ADVANCE DEVICE IN ACCORDANCE WITH THE OPERATING MODES OF SAID ENGINE IN TERMS OF AN ABSOLUTE LEVEL IS INTRODUCED INTO SAID THE VACUUM AT THE ABSOLUTE LEVEL IS INTRODUCED INTO SAID VACUUM ADVANCE DEVICE DURING ACCELERATION OF SAID VEHICLE TO EFFECT A VACUUM ADVANCE IN SAID IGNITION DISTRIBUTOR AND SUCH THAT THE VACUUM AT SUCH AN ABSOLUTE LEVEL IS AT LEAST PARTIALLY REDUCED AND INTRODUCED INTO SAID VACUUM ADVANCE DEVICE DURING CRUISING OPERATION OF SAID VEHICLE AND DURING DECELERATION THEREOF TO EFFECT A DESIRED REDUCTION IN THE VACUUM ADVANCE.

    7.
    发明专利
    未知

    公开(公告)号：DE69016424D1

    公开(公告)日：1995-03-09

    申请号：DE69016424

    申请日：1990-02-07

    Applicant: PERFORMANCE INDUSTRIES

    Inventor： BOYESEN EYVIND

    IPC: F02B1/04 ,  F02B75/02 ,  F02D13/02 ,  F02D9/04

    Abstract: A sliding exhaust control valve for two-stroke cycle engines is disclosed. This valve actuates at least partially through the exhaust passage and delays flow from the combustion chamber through the exhaust passage during the expansion stroke of the piston while permitting full opening of the exhaust passage and giving complete blow down before the scavenging cycle of the engine. Also disclosed is a mechanical linkage mechanism between the slide valve and the crankshaft and cam controlled actuation means to provide precise control of the exhaust valve throughout the engine cycle.

    MOTOR CYCLE DRIVE WHEEL SUSPENSION SYSTEM
    9.
    发明专利
    MOTOR CYCLE DRIVE WHEEL SUSPENSION SYSTEM 未知

    公开(公告)号：AU563603B2

    公开(公告)日：1987-07-16

    申请号：AU1340783

    申请日：1983-04-11

    Applicant: PERFORMANCE INDUSTRIES

    Inventor： BOYESEN EYVIND

    IPC: B62K25/26 ,  B62K25/20

    Abstract: A suspension system for the drive wheel of a motorcycle driven by a chain cooperating with sprockets on the engine and wheel shafts. The suspension system comprises a parallelogram linkage arrangement associated with the swing arm, with the linkage parts positioned in the region between the wheel and the motor.

    ENGINE VALVING AND PORTING INCLUDING PISTON PORTING
    10.
    发明专利
    ENGINE VALVING AND PORTING INCLUDING PISTON PORTING 未知

    公开(公告)号：CA1097569A

    公开(公告)日：1981-03-17

    申请号：CA337744

    申请日：1979-10-17

    Applicant: PERFORMANCE INDUSTRIES

    Inventor： BOYESEN EYVIND

    IPC: F02B33/10

    Abstract: A two-cycle crankcase compression internal combustion engine having extended and specially positioned intake porting including porting in the piston skirt, together with reed-type intake valves, with the porting and valves arranged to improve various of the operating characteristics of the engine.

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