Expansible chamber devices – Piston – Open-ended hollow skirt type
Patent
1991-09-13
1992-09-08
Ostrager, Allen M.
Expansible chamber devices
Piston
Open-ended hollow skirt type
92213, 92231, 92248, F16J 104
Patent
active
051448858
ABSTRACT:
A ceramic-metal friction welded member includes a ceramic member formed with an annular notch in an outer circumference of its surface and a metal member joined onto the annular notch of the ceramic member by friction welding. A ceramic cast-in bonded piston includes a crown made of a ceramic material having an annular notch formed in an outer circumference of its surface, a metal annular member joined onto the annular notch of the crown by friction welding, and a piston main body made of an aluminum alloy surrounding the crown by cast-in bonding. A ceramic cast-in bonded piston includes a crown made of a ceramic material, a piston main body made of an aluminum alloy surrounding the crown by cast-in bonding, and an annular member made of a metal different from aluminum and joined by friction welding to an outer circumference of a surface of the crown in contact with the piston main body.
REFERENCES:
patent: 4506593 (1985-03-01), Sugiyama et al.
patent: 4592268 (1986-06-01), Hartsock
patent: 4648308 (1987-03-01), Matsui et al.
patent: 4741253 (1988-05-01), Ogawa et al.
patent: 4746582 (1988-05-01), Tsuno
Patent Abstracts of Japan, vol. 3, No. 46 (C-43) Apr. 18, 1979.
Ohi Hiroyuki
Suzuki Tomio
NGK Insulators Ltd.
Ostrager Allen M.
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