Thermal insulation engine

Details Thermal insulation engine Thermal insulation engine

1994-10-25

1996-06-04

Okonsky, David A.

Internal-combustion engines

Combustion chamber

Having coating or liner

F02F 124

Patent

active

055223710

ABSTRACT:
The combustion chamber of an engine is formed in a double insulation structure where partially stabilized zirconia (PSZ) material having a low thermal conductivity is disposed between two walls for thermal installation. The double insulation structure has a head liner made of a silicon nitride material and an outer tubing which are separated by a space. A plurality of gaskets, i.e. the PSZ materials, are arranged in the space, with each having a PSZ thermal insulator 31 sandwiched between two contact claddings made of stainless steel or copper. The escape of heat from the head liner is minimized by the PSZ material, having a lower thermal conductivity, thereby increasing a thermal insulation quality of the combustion chamber.

REFERENCES:
patent: 3996913 (1976-12-01), Hamparian
patent: 4202310 (1980-05-01), Zorilla et al.
patent: 4562799 (1986-01-01), Woods et al.
patent: 4774926 (1988-10-01), Adams
patent: 4796572 (1989-01-01), Heydrich
patent: 4805571 (1989-02-01), Humphrey
patent: 5033427 (1991-07-01), Kawamura et al.
patent: 5054443 (1991-10-01), Kawamura

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