Patents by Inventor Thomas Pawelski

Thomas Pawelski 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: 8434586
    Abstract: A muffler device for a refrigerant circuit with refrigerant containing refrigerant oil comprises a housing in which an upper muffler chamber and a lower muffler chamber are arranged, whereby the upper muffler chamber has an upper feed opening that can be connected to the refrigerant circuit, and the lower muffler chamber has a lower discharge opening that can be connected to the refrigerant circuit, and whereby a muffler partition is arranged between the upper and lower muffler chambers, said partition having at least one muffling pipe that connects the upper muffler chamber to the lower muffler chamber, and an upper section of said pipe with an upper opening projects into the upper muffler chamber, whereby, at a filling level that exceeds the height of the upper opening, refrigerant oil that has accumulated on the top of the muffler partition can be fed with refrigerant vapor to the lower muffler chamber.
    Type: Grant
    Filed: July 20, 2012
    Date of Patent: May 7, 2013
    Assignee: Volkswagen Aktiengesellschaft
    Inventors: Thomas Pawelski, Ulrich Fochler
  • Publication number: 20130020146
    Abstract: A muffler device for a refrigerant circuit with refrigerant containing refrigerant oil comprises a housing in which an upper muffler chamber and a lower muffler chamber are arranged, whereby the upper muffler chamber has an upper feed opening that can be connected to the refrigerant circuit, and the lower muffler chamber has a lower discharge opening that can be connected to the refrigerant circuit, and whereby a muffler partition is arranged between the upper and lower muffler chambers, said partition having at least one muffling pipe that connects the upper muffler chamber to the lower muffler chamber, and an upper section of said pipe with an upper opening projects into the upper muffler chamber, whereby, at a filling level that exceeds the height of the upper opening, refrigerant oil that has accumulated on the top of the muffler partition can be fed with refrigerant vapor to the lower muffler chamber.
    Type: Application
    Filed: July 20, 2012
    Publication date: January 24, 2013
    Inventors: Thomas PAWELSKI, Ulrich FOCHLER
  • Patent number: 6705841
    Abstract: A variable displacement piston compressor comprising a housing and a shaft supported within the housing for rotational movement about an axis. The shaft includes a stepped down portion defining a reduced diameter within the shaft. A pin extends generally outward from the shaft and includes a distal end. A sleeve is mounted about the shaft, is slidable along the shaft, and is rotatable with the shaft. The sleeve extends over a portion of the stepped down portion of the shaft and defines a radial gap between the sleeve and the stepped down portion. A swash-ring is supported on the sleeve and is rotatable with the shaft. The swash-ring is pivotably coupled to the distal end of the pin. The swash-ring defines an angle with the axis that is adjustable with respect to the axis. A biasing member engages the sleeve and biases the sleeve along the shaft.
    Type: Grant
    Filed: March 1, 2002
    Date of Patent: March 16, 2004
    Assignee: Visteon Global Technologies, Inc.
    Inventors: Thomas Pawelski, Brian R. Kelm, Douglas Alexander Young
  • Publication number: 20030165389
    Abstract: A variable displacement piston compressor comprising a housing and a shaft supported within the housing for rotational movement about an axis. The shaft includes a stepped down portion defining a reduced diameter within the shaft. A pin extends generally outward from the shaft and includes a distal end. A sleeve is mounted about the shaft, is slidable along the shaft, and is rotatable with the shaft. The sleeve extends over a portion of the stepped down portion of the shaft and defines a radial gap between the sleeve and the stepped down portion. A swash-ring is supported on the sleeve and is rotatable with the shaft. The swash-ring is pivotably coupled to the distal end of the pin. The swash-ring defines an angle with the axis that is adjustable with respect to the axis. A biasing member engages the sleeve and biases the sleeve along the shaft.
    Type: Application
    Filed: March 1, 2002
    Publication date: September 4, 2003
    Applicant: Visteon Global Technologies, Inc.
    Inventors: Thomas Pawelski, Brian R. Kelm, Douglas Alexander Young