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.

公开(公告)号：AU1340783A

公开(公告)日：1983-10-20

申请号：AU1340783

申请日：1983-04-11

Applicant: PERFORMANCE INDUSTRIES

Inventor： BOYESEN EYVIND

IPC: B62K25/26 ,  B62K25/30

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：CA1085306A

公开(公告)日：1980-09-09

申请号：CA311395

申请日：1978-09-15

Applicant: PERFORMANCE INDUSTRIES

Inventor： BOYESEN EYVIND

IPC: F02B33/28 ,  F01L3/20 ,  F02B33/04 ,  F02B33/30 ,  F02B33/44 ,  F02B75/02

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.

公开(公告)号：DE69019150T2

公开(公告)日：1995-11-30

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：DE69016424T2

公开(公告)日：1995-07-13

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.