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公开(公告)号:DE3888195T2
公开(公告)日:1994-09-29
申请号:DE3888195
申请日:1988-09-14
Applicant: PERFORMANCE INDUSTRIES
Inventor: BOYESEN EYVIND
IPC: F02B67/10 , F01L1/38 , F02B1/04 , F02B25/14 , F02B25/20 , F02B25/24 , F02B75/02 , F02D9/08 , F02D13/02
Abstract: An exhaust control valve for two-stroke cycle engines is disclosed. This valve is within the exhaust passage, seals against the piston, and delays opening of the exhaust passage to the combustion chamber during the expansion stroke of the piston for a preselected number of degrees of rotation of the crankshaft while permitting full opening of the exhaust port during the scavenging cycle. Also disclosed are means for modifying opening of the exhaust valve at high engine speeds to improve scavenging.
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公开(公告)号:CA1329139C
公开(公告)日:1994-05-03
申请号:CA577388
申请日:1988-09-14
Applicant: PERFORMANCE INDUSTRIES
Inventor: BOYESEN EYVIND
IPC: F02B67/10 , F01L1/38 , F02B1/04 , F02B25/14 , F02B25/20 , F02B25/24 , F02B75/02 , F02D9/08 , F02D13/02
Abstract: EXHAUST CONTROL VALVE FOR TWO-STROKE CYCLE ENGINES AND PROCESS FOR USING THE SAME An exhaust control valve for two-stroke cycle engines is disclosed. This valve is within the exhaust passage, seals against the piston, and delays opening of the exhaust passage to the combustion chamber during the expansion stroke of the piston for a preselected number of degrees of rotation of the crankshaft while permitting full opening of the exhaust port during the scavenging cycle. Also disclosed are means for modifying opening of the exhaust valve at high engine speeds to improve scavenging.
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34.
公开(公告)号:AU5421290A
公开(公告)日:1990-12-18
申请号:AU5421290
申请日:1990-02-07
Applicant: PERFORMANCE INDUSTRIES INC
Inventor: BOYESEN EYVIND
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.
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公开(公告)号:AU586619B2
公开(公告)日:1989-07-20
申请号:AU3826185
申请日:1985-02-01
Applicant: PERFORMANCE INDUSTRIES
Inventor: BOYESEN EYVIND
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公开(公告)号:FR2525173A1
公开(公告)日:1983-10-21
申请号:FR8306034
申请日:1983-04-13
Applicant: PERFORMANCE INDUSTRIES
Inventor: BOYESEN EYVIND
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.
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公开(公告)号:CA1075609A
公开(公告)日:1980-04-15
申请号:CA264544
申请日:1976-11-01
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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公开(公告)号:DE2301663A1
公开(公告)日:1974-03-07
申请号:DE2301663
申请日:1973-01-13
Applicant: PERFORMANCE INDUSTRIES
Inventor: BOYESEN EYVIND
IPC: F01L3/20 , F02B25/16 , F02B33/04 , F02B33/30 , F02B33/44 , F02B75/02 , F02F1/22 , F02F3/24 , F16K15/16 , F02B25/20
Abstract: A two-cycle internal combustion engine having reed-type intake valving, and specially configured and positioned intake and injector porting, with the porting constructed and arranged to improve various of the operating characteristics of the engine, and particularly adapted to increase the effectiveness of the injection through the injector porting.
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