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:
Dec. 02, 2008
Filed:
Dec. 18, 2002
Wayne Kenneth Aldridge, Granby, GB;
David Anthony Clark, Huntington, GB;
George Mcchesney Francis, Solihull, GB;
Heather Allderidge, Derby, GB;
Graham Richard Roberts, Hatton, GB;
Wayne Kenneth Aldridge, Granby, GB;
David Anthony Clark, Huntington, GB;
George McChesney Francis, Solihull, GB;
Heather Allderidge, Derby, GB;
Graham Richard Roberts, Hatton, GB;
Microgen Energy Limited, Reading, GB;
Abstract
A domestic combined heat and power (dchp) unit includes a Stirling engineto provide heat for a domestic dwelling along with a source of electrical power. Under normal operation, the dchp is supplied with power from the national grid. When there is an interruption in the mains power from the grid, the dchp switches into a grid independent mode wherein power is generated by the dchp and is supplied to a controllerand to a water pump so as to maintain integrity of heat supply to the dwelling; the remaining power after that is supplied to selected domestic electrically powered equipment such as lights or television sets. The invention also discloses methods for black start of the dchp during a mains power loss, and also modification of the operating voltage on start up of electrical equipment during a power loss, to prevent the Stirling engine stalling.