Internal-combustion engines – Poppet valve operating mechanism – Lubrication
Reexamination Certificate
2009-12-24
2011-10-11
Denion, Thomas (Department: 3748)
Internal-combustion engines
Poppet valve operating mechanism
Lubrication
C123S090390, C074S559000
Reexamination Certificate
active
08033259
ABSTRACT:
A rocker arm includes a roller brought into contact with a cam to be rotated and an arm body having a storage portion for the roller. The storage portion has an opening edge including a part receiving lubricant oil flowing along an upper surface of the arm body. The part is formed with a receiving opening edge jutting out so that both widthwise ends are located away from a circumferential surface of the roller and so that a widthwise central portion comes closer to the circumferential surface of the roller. The arm body has a lubricant guide path formed by recessing the upper surface thereof and guiding the lubricant oil into the storage portion. The lubricant guide path has a width that is gradually rendered larger as the lubricant guide path gets close to the widthwise central portion of the receiving opening edge.
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Extended European Search Report mailed on Mar. 23, 2010 for EP 09 01 5203.
Bernstein Daniel
Denion Thomas
Otics Corporation
Smith , Gambrell & Russell, LLP
LandOfFree
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