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:
Apr. 13, 2010
Filed:
Aug. 31, 2005
Andrew Donald Thomas, North Epping, AU;
Andrew Donald Thomas, North Epping, AU;
Bishop Innovation Limited, North Ryde, New South Wales, AU;
Abstract
A cylinder head () for an axial flow rotary valve (). The head comprises a bore () having an axis and adapted to house an axial flow rotary valve (), a window () in the bore through which at least one port () in the valve periodically communicates with a combustion chamber () as the valve rotates, at least two axially extending slots () in the bore, adjacent opposite sides of the window, each of the slots being adapted to locate a floating elongate gas sealing element (), and at least one spark plug hole () adjacent to the bore and adapted for mounting a spark plug associated with the valve. The head further comprises at least one elongate axially extending cooling passage () disposed between the bore and the spark plug hole, adjacent to one of the slots, the passage having a substantially constant cross section and extending axially at least over the length of the slots.