Title:
Main guide bearing for engines which has high belt load
Document Type and Number:
Japanese Patent JP5977339
Kind Code:
B2
Abstract:
A main bearing (20) for supporting a rotating crankshaft (56) includes an upper shell (22) and a lower shell (24). An upper inner surface (32) of the upper shell (22) has an oil supply groove (26) extending circumferentially therealong, an oil stem groove (28) extending obliquely from the oil supply groove (26), and a pair of oil distribution grooves (30) extending from the oil stem groove (28) along and parallel to the oil supply groove (26) to present an F-shape along the upper inner surface (32) of the main bearing (20). The oil grooves (26, 28, 30) provide for improved lubrication of the main bearing (20) at startup and when the engine is idle or stopped, especially in electric and hybrid vehicles. The main bearing (20) also has exceptional strength and load bearing capacity.
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Inventors:
Ovalles, Paul Matthew
Stark, robert curl
Stark, robert curl
Application Number:
JP2014511474A
Publication Date:
August 24, 2016
Filing Date:
May 16, 2012
Export Citation:
Assignee:
Federal-Mogul Corporation
International Classes:
F16C17/02; F16C9/02; F16C33/10
Domestic Patent References:
| JP2000346045A | ||||
| JP2002155945A | ||||
| JP2003232333A |
Foreign References:
| GB1365738A |
Attorney, Agent or Firm:
Fukami patent office