Internal-combustion engines – Adjustable combustion chamber – Piston in head adjusted
Patent
1998-06-17
1999-11-09
Wolfe, Willis R.
Internal-combustion engines
Adjustable combustion chamber
Piston in head adjusted
1231974, 74579E, F02B 7532
Patent
active
059793759
ABSTRACT:
An internal combustion engine comprising: a piston (2) and a cylinder (3), the piston (2) being sealedly mounted to the cylinder (3) and being reciprocally mobile therein between a Top Dead Center (TDC) and a Bottom Dead Center (BDC); also comprising a combustion chamber (4) delimited by the piston (2) and the cylinder (3); a crankshaft (5) provided with a crank (5m) pin (5p); a connecting rod (6) having a small end (6p) rotatably connected to the piston (2) and a big end (6t) rotatably connected to the pin (5p) of the crank (5m) of the crank shaft (5), also comprising at least one cam (7), mounted, rotatably and freely mobile on the big end (6t) of the connecting rod (6) and on the pin (5p) of the crank (5m), which cam (7) by effect of inertia consequent to a rotation of the crank (5m), moves cyclically rotatingly with respect to the pin (5p) and the connecting rod (6) between two operative positions, in which it transmits to the connecting rod (6) an action which adds to the inertia actions of the connecting rod (6) and the piston (2), and which in correspondence with reaching Top Dead Center enables a rapid displacement (70) of the connecting rod (6)-crank (5m) assembly towards the Bottom Dead Center, so as to prevent a series of conditions from occurring in the combustion chamber (4) which would lead to detonation of a fuel-air mixture due to an effect of an overpressure generated in said combustion chamber (4).
REFERENCES:
patent: 423515 (1890-03-01), Colborne
patent: 1141658 (1915-06-01), Schmied
patent: 1875180 (1932-08-01), Rider
patent: 4085628 (1978-04-01), McWhorter
Anna Giacobbi
Hairston Brian
Wolfe Willis R.
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