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.

公开(公告)号：AT122126T

公开(公告)日：1995-05-15

申请号：AT90906511

申请日：1990-02-07

Applicant: PERFORMANCE INDUSTRIES

Inventor： BOYESEN EYVIND C O PERFORMANCE

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

公开(公告)号：DE3888195D1

公开(公告)日：1994-04-07

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.

公开(公告)号：AT37169T

公开(公告)日：1988-09-15

申请号：AT85300750

申请日：1985-02-05

Applicant: PERFORMANCE INDUSTRIES

Inventor： BOYESEN EYVIND

IPC: B62K25/26 ,  F02B61/02

公开(公告)号：FR2525173B1

公开(公告)日：1986-11-28

申请号：FR8306034

申请日：1983-04-13

Applicant: PERFORMANCE INDUSTRIES

Inventor： BOYESEN EYVIND

IPC: B62K25/26 ,  B62K25/10 ,  B62M9/16

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.

公开(公告)号：AU3826185A

公开(公告)日：1985-08-15

申请号：AU3826185

申请日：1985-02-01

Applicant: PERFORMANCE INDUSTRIES INC

Inventor： BOYESEN EYVIND

IPC: B62K25/26 ,  F02B61/02 ,  B62K25/20

公开(公告)号：GB2118112B

公开(公告)日：1985-08-14

申请号：GB8310041

申请日：1983-04-13

Applicant: PERFORMANCE INDUSTRIES

Inventor： BOYESEN EYVIND

IPC: B62K25/26 ,  B62K25/04

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.

公开(公告)号：CA1162149A

公开(公告)日：1984-02-14

申请号：CA375412

申请日：1981-04-14

Applicant: PERFORMANCE INDUSTRIES

Inventor： BOYESEN EYVIND

IPC: F02B75/02

Abstract: Two-cycle internal combustion engines are disclosed incorporating intake and transfer ports and passages, and including passage means in the cylinder wall interconnecting the intake tract and a transfer passage in a region above the piston when the piston is in bottom dead center position.