Adiabatic, two-stroke cycle engine having external piston rod al

Details Adiabatic, two-stroke cycle engine having external piston rod al Adiabatic, two-stroke cycle engine having external piston rod al

1996-04-15

1998-09-01

McMahon, Marguerite

Internal-combustion engines

Multiple cylinder

Having rotary output shaft parallel to cylinders

F02B 7526

Patent

active

057996296

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 novel intake/exhaust valve configuration, a novel combustion chamber configuration and a novel external piston rod alignment structure comprising a cam follower assembly including a pair of needle roller bearings riding in longitudinal grooves machined in the cam follower body.

REFERENCES:
patent: 1332948 (1920-03-01), Murphy
patent: 1565184 (1923-12-01), Miller
patent: 1788140 (1931-01-01), Woolson
patent: 1808083 (1931-06-01), Tibbetts
patent: 3456630 (1969-07-01), Karlan
patent: 3598094 (1971-08-01), Odawara
patent: 4432310 (1984-02-01), Waller
patent: 5031581 (1991-07-01), Powell
patent: 5113809 (1992-05-01), Ellenburg
patent: 5215045 (1993-06-01), Vadnjal
patent: 5269193 (1993-12-01), Rabinow

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