Patents by Inventor Mads Lytje Christensen

Mads Lytje Christensen has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Exhaust valve for a large sized two stroke diesel engine, process for reduction on NO-formation in such an engine and such engine
    Patent number: 8869511
    Abstract: For reducing the NOx-emission of a large sized two stroke diesel engine having at least one combustion room (3), a reciprocating piston (4) and an exhaust opening (12) controlled by an exhaust valve (13) at each work cyclus a small volume of burnt gas is retained in the combustion room (3) and so added to the fresh air for the next combustion. For achieving this retention of burnt gas the underside of the valve disc (15) off the exhaust valve (13) is provided with a shallow concave face (17) building a basin-like collection room, whose depth is within a range of 2-10% of the outer diameter of the valve disc (15).
    Type: Grant
    Filed: May 12, 2009
    Date of Patent: October 28, 2014
    Assignee: Man Diesel & Turbo, Filial AF Man Diesel & Turbo SE, Tyskland
    Inventor: Mads Lytje Christensen
  • EXHAUST VALVE FOR A LARGE SIZED TWO STROKE DIESEL ENGINE, PROCESS FOR REDUCTION ON NOX-FORMATION IN SUCH AN ENGINE AND SUCH ENGINE
    Publication number: 20110061365
    Abstract: For reducing the NOx-emission of a large sized two stroke diesel engine having at least one combustion room (3), a reciprocating piston (4) and an exhaust opening (12) controlled by an exhaust valve (13) at each work cyclus a small volume of burnt gas is retained in the combustion room (3) and so added to the fresh air for the next combustion. For achieving this retention of burnt gas the underside of the valve disc (15) off the exhaust valve (13) is provided with a shallow concave face (17) building a basin-like collection room, whose depth is within a range of 2-10% of the outer diameter of the valve disc (15).
    Type: Application
    Filed: May 12, 2009
    Publication date: March 17, 2011
    Inventor: Mads Lytje Christensen