Internal-combustion engines – Multiple cylinder – Having rotary output shaft parallel to cylinders
Patent
1994-09-23
1996-04-16
Macy, Marguerite
Internal-combustion engines
Multiple cylinder
Having rotary output shaft parallel to cylinders
F02B 7526
Patent
active
055072534
ABSTRACT:
An engine structure and mechanism that operates on various combustion processes in a two-stroke-cycle without supplemental cooling or lubrication comprises an axial assembly of cylindrical modules and twin, double-harmonic cams that operate with opposed pistons in each cylinder through fully captured rolling contact bearings. The opposed pistons are double-acting, performing a two-stroke engine power cycle on facing ends and induction and scavenge air compression on their outside ends, all within the same cylinder bore. The engine includes a control system which utilizes twin barrel cams with adjustable axial and angular positions enabling independent compression ratio and port phasing variation during operation. The engine control system comprises one or more electrohydraulic servos to set and maintain the axial and angular relationships of the cams either at extreme positions or controlled to particular positions and schedules thereof utilizing instantaneous piston position feedback information.
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Canter Bruce M.
Macy Marguerite
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