Eccentric crank variable compression ratio mechanism

Patent · Tue May 13 00:00:00 EDT 2008

OSTI ID:936329

Lawrence, Keith Edward ^[1]; Moser, William Elliott ^[2]; Roozenboom, Stephan Donald ^[3]; Knox, Kevin Jay ^[2]

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1. Kobe, JP
2. Peoria, IL
3. Washington, IL

A variable compression ratio mechanism for an internal combustion engine that has an engine block and a crankshaft is disclosed. The variable compression ratio mechanism has a plurality of eccentric disks configured to support the crankshaft. Each of the plurality of eccentric disks has at least one cylindrical portion annularly surrounded by the engine block. The variable compression ratio mechanism also has at least one actuator configured to rotate the plurality of eccentric disks.

• Research Organization: Caterpillar Inc., Deerfield, IL (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: FC05-00OR22806
• Assignee: Caterpillar Inc. (Peoria, IL)
• Patent Number(s): 7,370,613
• Application Number: 10/998,895
• OSTI ID: 936329
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS