Patents by Inventor Erik Rosenlund Hansen

Erik Rosenlund Hansen 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).

  • Slide valve and a large two-stroke internal combustion engine
    Patent number: 5732678
    Abstract: A spool valve (22) controls a hydraulic drive, such as a drive for a fuel pump (18) in an internal combustion engine, in which the hydraulic drive comprises a driving piston (34) journalled in a hydraulic cylinder (33) which through a flow passage (31) is in communication with the spool valve. The spool (38) may occupy a position in which the flow passage is connected with a high-pressure source (29) and another position in which the flow passage is connected with a low-pressure port (30). The spool is settable by means of a positioning means (23) electrically activated by a control unit (16) which determines intended positions of the spool and for a movable part (56) in the positioning member. The movable part has windings (51) positioned in a magnetic field in a slit (60) which is oblong in the longitudinal direction of the spool. A sensor (66) signalizes the actual position of the movable part to the control unit (16).
    Type: Grant
    Filed: December 4, 1995
    Date of Patent: March 31, 1998
    Assignee: Man B&W Diesel A/S
    Inventors: Henning Lindquist, Erik Rosenlund Hansen, Karel Hampejs, Stefan Gabriel