Patents by Inventor Martin Josef Zug

Martin Josef Zug 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).

  • Pump unit comprising a main pump and a charge pump with a variable pump capacity
    Patent number: 8231359
    Abstract: A pump unit includes a main pump (4) and a charge pump (5), the pump capacity of which is adjustable via an adjusting element. To adjust the pump capacity of the charge pump (5), an adjusting element of the charge pump (5) is acted upon by an adjusting force which is dependent on the inlet pressure of the main pump (4).
    Type: Grant
    Filed: April 22, 2008
    Date of Patent: July 31, 2012
    Assignee: Robert Bosch GmbH
    Inventors: Stefan Merz, Ulrich Gordon Mohn, Rene Constantin Scheerer, Martin Josef Zug
  • Pump unit comprising a main pump and a charge pump with a variable pump capacity
    Publication number: 20100119383
    Abstract: The invention relates to a pump unit (1) with a main pump (4) and a charging pump (5) with a variable pump capacity. A lifting ring (23) is provided for varying the capacity of the charging pump (5). A regulating power, which depends on the inlet pressure of the main pump (4), acts on the lifting ring (23).
    Type: Application
    Filed: April 22, 2008
    Publication date: May 13, 2010
    Inventors: Stefan Merz, Gordon Mohn, Rene Constantin Scheerer, Martin Josef Zug