Bearing support insert

Details Bearing support insert Bearing support insert

1994-05-17

1996-03-26

Hannon, Thomas R.

Bearings

Rotary bearing

Plain bearing

123195R, 384279, 384434, F16C 3500, F02F 700

Patent

active

055015298

ABSTRACT:
A bearing insert for being cast into an aluminum alloy engine block is made by a ferrous powder metal sintering process to make a skeleton structure which is permeable to the molten aluminum alloy in the block casting process. The insert is made of a material having a similar composition as the bearing cap so as to equalize machining and thermal expansion properties of the cap and block so as to provide improved roundness of the bearing in the machining operations for forming the bearing support and in operation of the engine.

REFERENCES:
patent: 2997347 (1961-08-01), Bauer
patent: 4412514 (1983-11-01), Hayakawa et al.
patent: 4465041 (1984-08-01), Mayashi
patent: 4643145 (1987-02-01), Bolton et al.
patent: 4693216 (1987-09-01), Ampferer et al.
Exhibit A--a copy of International Search Report for International Application No. PCT/US95/05517.

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