Patents by Inventor Rolf Jacobsson

Rolf Jacobsson 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).

  • Publication number: 20050175448
    Abstract: An axial flow compressor including one or more axially spaced stator sections (14) each having a circumferential array of guide vanes (15), and one or more rotor section (12, 16) each having a circumferential array of rotor blades (13, 17; A, B), and between successive rotor blades (A, B) there are formed flow paths and between the stator and rotor sections there are provided axial gaps (22, 23, 24) of a diverging configuration so as to form in each flow path a diffusion region (C) which extends from a narrowest cross section (a2) of the flow path located at a certain distance upstream of the leading edge of a second rotor blade (B) to a wider cross section (a3) located approximately at the leading edge of the second rotor blade (B), wherein each flow path has a transition region (D) of a substantially non-increasing cross sectional area extending from the wider cross section (a3) to the trailing edges of the rotor blades (A, B).
    Type: Application
    Filed: November 2, 2001
    Publication date: August 11, 2005
    Inventor: Rolf Jacobsson
  • Publication number: 20050118034
    Abstract: A compressor unit intended for delivering a pressurised gaseous medium at a varying outlet flow volume to a consumer with varying load demands and comprises one or more rotors (K; 10, 11) forming one or more compressor stages and arranged to operate continuously at high speed thereby delivering a certain outlet flow volume, a drive motor (M; 19), a drive line assembly (N; 17, 18) mechanically coupling the compressor rotor or rotors (K; 10, 11) to the drive motor (M; 19), and a waste flow circuit connected to the outlet end of the compressor stages and incorporating at least one power recovery turbine (TR; 22, 23) mechanically coupled to the drive line assembly (N; 17, 18), and one or more valves (V; 25, 34, 35) controlling the waste flow through the waste flow circuit in response to the actual load demand, wherein the power recovery turbine or turbines (TR; 22, 23) are arranged to deliver power back to the drive line or drive lines (N; 17, 18) at consumer load demands smaller than the certain outlet flow volu
    Type: Application
    Filed: December 6, 2002
    Publication date: June 2, 2005
    Applicant: Atlas Copco Tools AB
    Inventor: Rolf Jacobsson