Patents by Inventor Alfred Markwalder

Alfred Markwalder 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).

  • Turbo engine with improved compensating piston gasket
    Patent number: 9494165
    Abstract: A flow machine (1) has an outer housing (2) with an inner housing (6), particularly a guide blade carrier, arranged therein and a rotor shaft (10) which is situated in the latter, a cover (4; 8) which is fastened to the outer housing (2) and separates an inlet pressure (p1) in the interior of the outer housing (2) from an ambient pressure (pu) outside the outer housing, and a compensating piston seal (22) for sealing an outlet pressure (p2) in a work space, particularly compression space (16), defined between the rotor shaft (10) and the inner housing (6) against the inlet pressure (p1) in a noncontacting manner. The compensating piston seal (22) is fastened to the cover (4; 8).
    Type: Grant
    Filed: November 3, 2008
    Date of Patent: November 15, 2016
    Assignee: MAN Diesel & Turbo SE
    Inventors: Alfred Markwalder, George Kleynhans, Urs Baumann
  • Turbo engine with improved compensating piston gasket
    Publication number: 20100322765
    Abstract: A flow machine (1) has an outer housing (2) with an inner housing (6), particularly a guide blade carrier, arranged therein and a rotor shaft (10) which is situated in the latter, a cover (4; 8) which is fastened to the outer housing (2) and separates an inlet pressure (p1) in the interior of the outer housing (2) from an ambient pressure (pu) outside the outer housing, and a compensating piston seal (22) for sealing an outlet pressure (p2) in a work space, particularly compression space (16), defined between the rotor shaft (10) and the inner housing (6) against the inlet pressure (p1) in a noncontacting manner. The compensating piston seal (22) is fastened to the cover (4; 8).
    Type: Application
    Filed: November 3, 2008
    Publication date: December 23, 2010
    Applicant: MAN Diesel & Turbo SE
    Inventors: Alfred Markwalder, George Kleynhans, Urs Baumann