公开(公告)号：US3905341A

公开(公告)日：1975-09-16

申请号：US41621573

申请日：1973-11-15

Applicant: PERFORMANCE INDUSTRIES

Inventor： BOYESEN EYVIND

IPC: F01L3/20 ,  F02B75/02 ,  F02F1/22 ,  F02F3/24 ,  F02B33/04

CPC classification number: F01L3/205 ,  F02B2075/025 ,  F02B2700/037 ,  F02F1/22 ,  F02F3/24 ,  F05C2201/0448 ,  F05C2225/08

Abstract: A two-cycle crankcase compression internal combustion engine having extended and specially positioned intake porting and reedtype intake valves, with the porting and valves arranged to improve various of the operating characteristics of the engine.

Abstract translation: 具有延伸和特别定位的进气口和簧片式进气阀的双循环曲轴箱压缩内燃机，其中该排气阀和阀被布置成改善发动机的各种操作特性。

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.

公开(公告)号：US3905340A

公开(公告)日：1975-09-16

申请号：US37506573

申请日：1973-06-29

Applicant: PERFORMANCE INDUSTRIES

Inventor： BOYESEN EYVIND

IPC: F02B25/16 ,  F01L3/20 ,  F02B33/04 ,  F02B33/30 ,  F02B75/02 ,  F02F1/22 ,  F02F3/24 ,  F16K15/16

CPC classification number: F01L3/205 ,  F02B2075/025 ,  F02B2700/037 ,  F02F1/22 ,  F02F3/24 ,  F05C2201/0448 ,  F05C2225/08

Abstract: The application discloses a two-cycle crankcase compression internal combustion engine having extended and specially positioned intake porting and reed-type intake valves, with the porting and valves arranged to improve various of the operating characteristics of the engine.

Abstract translation: 本申请公开了一种双循环曲轴箱压缩内燃机，其具有延伸和特别定位的进气口和簧片式进气门，其中移动和阀被布置成改善发动机的各种操作特性。