Patents by Inventor Soeren Liljenberg

Soeren Liljenberg 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).

  • Patent number: 10161425
    Abstract: A hydraulic steering system (1) is provided having a steering device (2) and a symmetrically acting steering motor (3), said steering device (2) comprising a supply port arrangement having a high pressure port (P) and a low pressure port (T), a working port arrangement having two working ports (L, R), a control valve (14), two working lines (18, 19) each connecting said control valve (14) with one of said working ports (L, R), and a measuring motor (23). Such a hydraulic steering system should show a comfortable steering behavior. To this end said measuring motor (23) is arranged in one of said working lines (18, 19).
    Type: Grant
    Filed: April 7, 2016
    Date of Patent: December 25, 2018
    Assignee: Danfoss Power Solutions ApS
    Inventors: Soeren Liljenberg, Tom Rudolph, Jens Vester, Tom Tychsen, Poul Ennemark
  • Patent number: 9950737
    Abstract: A hydraulic steering system (1) is described comprising a first steering circuit (2a) and a second steering circuit (2b), each of said steering circuits (2a, 2b) comprising a steering device (3a, 3b) and a steering motor (4a, 4b) connected to said steering device (3a, 3b), each of said steering devices (3a, 3b) comprising a supply port arrangement having a high pressure port (Pa, Pb) and a low pressure port (Ta, Tb), a working port arrangement having two working ports (La, Ra; Lb, Rb) connected to said steering motor (4a, 4b), a control valve (5a, 5b), and a measuring motor (6a, 6b). Such a steering system should have a comfortable steering behavior. To this end in each of said steering devices (3a, 3b) said measuring motor (6a, 6b) is arranged in a working line (19a, 20b) between said control valve (5a, 5b) and one of said working ports (La, Ra; Lb, Rb).
    Type: Grant
    Filed: April 7, 2016
    Date of Patent: April 24, 2018
    Assignee: Danfoss Power Solutions ApS
    Inventors: Soeren Liljenberg, Tom Rudolph, Tom Tychsen, Jens Vester, Poul Ennemark
  • Publication number: 20160298658
    Abstract: A hydraulic steering system (1) is provided having a steering device (2) and a symmetrically acting steering motor (3), said steering device (2) comprising a supply port arrangement having a high pressure port (P) and a low pressure port (T), a working port arrangement having two working ports (L, R), a control valve (14), two working lines (18, 19) each connecting said control valve (14) with one of said working ports (L, R), and a measuring motor (23). Such a hydraulic steering system should show a comfortable steering behavior. To this end said measuring motor (23) is arranged in one of said working lines (18, 19).
    Type: Application
    Filed: April 7, 2016
    Publication date: October 13, 2016
    Inventors: Soeren Liljenberg, Tom Rudolph, Jens Vester, Tom Tychsen, Poul Ennemark
  • Publication number: 20160297473
    Abstract: A hydraulic steering system (1) is described comprising a first steering circuit (2a) and a second steering circuit (2b), each of said steering circuits (2a, 2b) comprising a steering device (3a, 3b) and a steering motor (4a, 4b) connected to said steering device (3a, 3b), each of said steering devices (3a, 3b) comprising a supply port arrangement having a high pressure port (Pa, Pb) and a low pressure port (Ta, Tb), a working port arrangement having two working ports (La, Ra; Lb, Rb) connected to said steering motor (4a, 4b), a control valve (5a, 5b), and a measuring motor (6a, 6b). Such a steering system should have a comfortable steering behavior. To this end in each of said steering devices (3a, 3b) said measuring motor (6a, 6b) is arranged in a working line (19a, 20b) between said control valve (5a, 5b) and one of said working ports (La, Ra; Lb, Rb).
    Type: Application
    Filed: April 7, 2016
    Publication date: October 13, 2016
    Inventors: Soeren Liljenberg, Tom Rudolph, Tom Tychsen, Jens Vester, Poul Ennemark