Sintered body assembly formed from a plurality of independent co

Details Sintered body assembly formed from a plurality of independent co Sintered body assembly formed from a plurality of independent co

1988-06-06

1990-03-13

Eley, Timothy V.

Internal-combustion engines

Poppet valve operating mechanism

Tappet

29508, 29447, 2988803, 2988843, B21K 120, B23P 1502

Patent

active

049073303

ABSTRACT:
A sintered body assembly having an inner section and an outer section is formed from independent inner and outer compacts corresponding to the inner and outer sections, respectively. The inner and outer compacts are so shaped that a predetermined clearance is provided therebetween. The outer compact is larger in shrinkage percentage at the time of sintering than the inner compact such that the clearance is filled by the compacts at the time of sintering thereby allowing the compacts to be formed into a single sintered body or an integral unit.

REFERENCES:
patent: 4251273 (1981-02-01), Smith et al.
patent: 4364159 (1982-12-01), Holcombe
patent: 4419413 (1983-12-01), Ebihara
patent: 4793968 (1988-12-01), Mosser et al.

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