公开(公告)号：AT117767T

公开(公告)日：1995-02-15

申请号：AT90906569

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.

公开(公告)号：DE3564927D1

公开(公告)日：1988-10-20

申请号：DE3564927

申请日：1985-02-05

Applicant: PERFORMANCE INDUSTRIES

Inventor： BOYESEN EYVIND

IPC: B62K25/26 ,  F02B61/02

公开(公告)号：CA1218935A

公开(公告)日：1987-03-10

申请号：CA465547

申请日：1984-10-16

Applicant: PERFORMANCE INDUSTRIES

Inventor： BOYESEN EYVIND

IPC: B62K25/04

Abstract: A suspension system for the drive wheel of a motorpowered vehicle driven by a chain cooperating with sprockets on the engine and wheel shafts. The suspension system comprises a linkage arrangement associated with the swing arm, with the linkage parts positioned in the region between the wheel and the motor, with the swing arm substantially in a plane containing the axes of the engine and wheel sprockets, and with linkage components defining or approximating a parallelogram configuration.

公开(公告)号：CA1197471A

公开(公告)日：1985-12-03

申请号：CA425494

申请日：1983-04-08

Applicant: PERFORMANCE INDUSTRIES

Inventor： BOYESEN EYVIND

IPC: B62K25/26 ,  B62K25/00

Abstract: A suspension system is provided for the drive wheel of a motor-powered vehicle, such as 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.

公开(公告)号：CA1102704A

公开(公告)日：1981-06-09

申请号：CA313512

申请日：1978-10-16

Applicant: PERFORMANCE INDUSTRIES

Inventor： BOYESEN EYVIND

IPC: F02B33/04

Abstract: A two-cycle internal combustion engine having reed-type intake valving, and multiple injector passages and porting constructed and arranged to improve various of the operating characteristics of the engine, and particularly adapted to increase the effectiveness of fuel injection through the injector passages.

公开(公告)号：CA1089768A

公开(公告)日：1980-11-18

申请号：CA264535

申请日：1976-11-01

Applicant: PERFORMANCE INDUSTRIES

Inventor： BOYESEN EYVIND

IPC: F02B33/00

Abstract: A two-cycle internal combustion engine having reed-type intake valving, and specially configured and positioned intake and injection porting, with the porting constructed and arranged to improve various of the operating characteristics of the engine.

公开(公告)号：DE69019150D1

公开(公告)日：1995-06-08

申请号：DE69019150

申请日：1990-02-07

Applicant: PERFORMANCE INDUSTRIES

Inventor： BOYESEN EYVIND

IPC: F02B1/04 ,  F02B75/02 ,  F02D13/02 ,  F02D39/04 ,  F02D9/04

公开(公告)号：AT102291T

公开(公告)日：1994-03-15

申请号：AT88909651

申请日：1988-09-14

Applicant: PERFORMANCE INDUSTRIES

Inventor： BOYESEN EYVIND

IPC: F02B75/02

公开(公告)号：AU2625088A

公开(公告)日：1989-04-17

申请号：AU2625088

申请日：1988-09-14

Applicant: PERFORMANCE INDUSTRIES INC

Inventor： BOYESEN EYVIND

IPC: F02B67/10 ,  F01L1/38 ,  F02B1/04 ,  F02B25/14 ,  F02B25/20 ,  F02B25/24 ,  F02B75/02 ,  F02D9/08 ,  F02D13/02

公开(公告)号：GB2118112A

公开(公告)日：1983-10-26

申请号：GB8310041

申请日：1983-04-13

Applicant: PERFORMANCE INDUSTRIES

Inventor： BOYESEN EYVIND

IPC: B62K25/26 ,  B62K25/04

Abstract: A swing arm (22) carries a motor-cycle drive wheel driven by a chain (25) cooperating with sprockets (23, 24) on the engine and wheel shafts. To ensure that the swing arm (22) swings about the axis of the sprocket (23) without being mounted on the shaft (26) carrying the sprocket, the swing arm is articulated to the motor cycle frame by upper and lower parallelogram linkages. Upper and lower links (27 and 28) are pivoted at their front ends on fixed axes (29, 30) and are pivoted at their rear ends to vertical links 32 and 34 pivoted on the swing arm 22 at spaced points 31 and 35; The link 32 is effectively extended downwards at 33 to be pivoted to an intermediate point of the lower link 28. A spring and damper assembly 36 acts between the lower link 28 and a rocking lever 39, 41 connected by link 42 to the upper link pivot 43.