Multisectional piston with plural ceramic parts and rigidly conn

Details Multisectional piston with plural ceramic parts and rigidly conn Multisectional piston with plural ceramic parts and rigidly conn

1986-03-19

1988-06-21

Garrett, Robert E.

Expansible chamber devices

Piston

Open-ended hollow skirt type

92216, 92221, 92224, 92257, F16J 101, F16J 112, F16J 924, F16J 928

Patent

active

047518715

ABSTRACT:
A multisectional piston for opposed-piston, slider-crank-drive internal combustion engines. The piston has a ceramic skirt (1), a skirt head (2), and a ceramic piston head (3) with fire land (4). The ceramic piston head is provided with annular groove (6) for receiving a slotted, ceramic piston ring (7) and is seated on the skirt head (2). A ceramic, common centering sleeve (5) fixes the skirt and head. Metal or metal alloy centering piece (8) fixed on the piston rod (12) in snug fit (14) has a base plate (9) on which the skirt head seats. An end cover (10) seats on the piston head and has a centering hub (11) axially spaced by a gap (23) from the centering piece. In assembly, the skirt head and piston head are axially clamped between the end cover and the base plate by a screw connection (13).

REFERENCES:
patent: 1668672 (1928-05-01), Darrah
patent: 1956355 (1934-04-01), Junkers
patent: 1963725 (1934-06-01), Teetor
patent: 2105950 (1938-01-01), Metzgar
patent: 2471477 (1949-05-01), Bonnaud
patent: 2657961 (1953-11-01), Von Lassberg
patent: 3136306 (1964-06-01), Kamm
patent: 4242948 (1981-01-01), Stang et al.
patent: 4522415 (1985-06-01), Dworak et al.
"Construction, Building, and Testing of a New Two-Stroke Two-Cylinder Motor Having Ceramic Components According to the Ficht Principle", German Budeminister Fuer Forschung und Technologie, Mar. 21, 1985, pp. 178-187.

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