The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 08, 2007
Filed:
Dec. 14, 2004
Robert Bilgor Peliks, San Francisco, CA (US);
Nam P. Suh, Sudbury, MA (US);
Robert Bilgor Peliks, San Francisco, CA (US);
Nam P. Suh, Sudbury, MA (US);
Massachusetts Institute of Technology, Cambridge, MA (US);
Abstract
A valve is constructed to strike a balance between providing relatively high sealing yet low friction as components of the valve move. The valve includes a port and an actuator movable relative to the port. A member is disposed between the port and the actuator. The actuator acts on the member so that it can intermittently seal the port as it moves. The member and the actuator have a substantially low friction interface, whereas the seal member and the port have a substantially high sealing interface. The valve can be used in an engine, such as a rotary valve in an internal combustion engine.