EP 0412660 A1 19910213 - Heat-insulating piston.
Title (en)
Heat-insulating piston.
Title (de)
Wärmeisolierter Kolben.
Title (fr)
Piston thermiquement isolé.
Publication
Application
Priority
JP 20564789 A 19890810
Abstract (en)
A heat-insulating piston has a piston head comprising a piston head base portion (1) consisting of a ceramic material, a heat-insulating member (3) jointed to the piston head base portion (1) and consisting of a whisker fired member of the same ceramic material as that of the piston head base portion (1), and a laminate (5) jointed to the surface (10) of the heat-insulating member that faces the combustion chamber, as well as to the surface that slides and consisting of the same ceramic material as that of the heat-insulating member (3). The heat-insulating member (3) is stably jointed to the piston head base portion (1) and laminate by utlising the same ceramic material for the heat-insulating member (3), piston head base portion (1) and laminate, whereby the strength of the piston head can be improved. Furthermore, the heat-insulating capability of the piston can be improved, whilst the thermal capacity of the laminate is made small, whereby the suction efficiency can also be improved.
IPC 1-7
IPC 8 full level
F02F 3/00 (2006.01); F02F 3/12 (2006.01); F16J 1/01 (2006.01)
CPC (source: EP)
F02F 3/003 (2013.01); F02F 3/12 (2013.01); F05C 2251/042 (2013.01); F05C 2253/16 (2013.01)
Citation (search report)
- [A] EP 0294092 A2 19881207 - ISUZU MOTORS LTD [JP]
- [A] EP 0111989 B1 19870819
- [A] GB 2061383 A 19810513 - SAAB SCANIA AB
Designated contracting state (EPC)
DE GB
DOCDB simple family (publication)
EP 0412660 A1 19910213; EP 0412660 B1 19931006; DE 412660 T1 19910725; DE 69003774 D1 19931111; DE 69003774 T2 19940331; JP H0370845 A 19910326; JP H0668257 B2 19940831
DOCDB simple family (application)
EP 90307647 A 19900712; DE 69003774 T 19900712; DE 90307647 T 19900712; JP 20564789 A 19890810