Internal-combustion engines – Particular piston and enclosing cylinder construction – Cylinder detail
Patent
1977-12-20
1980-03-04
Myhre, Charles J.
Internal-combustion engines
Particular piston and enclosing cylinder construction
Cylinder detail
123 4172, 123 4184, 123 65EM, 123 65PE, 123 65P, 123 73A, F01N 710
Patent
active
041911563
ABSTRACT:
In a two-stroke, water-cooled internal combustion engine the improvement is disclosed which permits to have a removable cylinder liner type of engine in spite of the intricate constructional arrangement of such engines having transfer ports and exhaust ports. The improvement consists in that the transfer and exhaust ports are formed through the liners and flanged fittings are provided between the liner transfer ports and the transfer ducts so as to ensure complete tightness. Differential-firmness gaskets are provided where appropriate and the engine is then assembled by stay bolts as usual. The construction suggested by the invention not only solves the tightness problem satisfactorily, but minimizes the stresses on the liners, especially the bending stresses.
REFERENCES:
patent: 1623639 (1927-04-01), Setz
patent: 1674832 (1928-06-01), Lugt
patent: 1684407 (1928-09-01), Nibbs
patent: 2395110 (1946-02-01), Forrest
patent: 2703077 (1955-03-01), Antonsen
patent: 2737171 (1956-03-01), Torre
patent: 2740390 (1956-04-01), Irgens
patent: 4016850 (1977-04-01), Bloemers
Myhre Charles J.
Piaggio & C. S.p.A.
Yates Jeffrey L.
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