POSITIVE CONTROL (DESMODROMIC) VALVE SYSTEMS FOR INTERNAL COMBUSTION ENGINES

Title:

POSITIVE CONTROL (DESMODROMIC) VALVE SYSTEMS FOR INTERNAL COMBUSTION ENGINES

Document Type and Number:

WIPO Patent Application WO/2012/048300

Kind Code:

A4

Abstract:

Various types of valve systems are disclosed herein. In one embodiment, a positive control reciprocating sleeve valve system for use with an internal combustion engine includes opening and closing rockers controlled by corresponding opening and closing cam lobes. In one aspect of this embodiment, interference can be designed into the valve control system to provide additional "hold-closed" force to hold the valve against its seat during a portion of the engine cycle. In another aspect of this embodiment, positive control valve systems can include compliant components and systems, hydraulic systems, pneumatic systems, and/or mechanical spring systems to control valve lash, facilitate sealing, etc.

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Inventors:

CLEEVES JAMES MONTAGUE (US)
HAWKES MICHAEL (US)
ANDERSON WILLIAM H (US)

Application Number:

PCT/US2011/055485

Publication Date:

July 26, 2012

Filing Date:

October 07, 2011

Export Citation:

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Assignee:

PINNACLE ENGINES INC
CLEEVES JAMES MONTAGUE (US)
HAWKES MICHAEL (US)
ANDERSON WILLIAM H (US)

International Classes:

F01L1/30

Attorney, Agent or Firm:

VAN LOY, Michael, D. et al. (PCOne Financial Cente, Boston MA, US)

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