The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 21, 2001
Filed:
Jul. 25, 2000
Karl-Joachim Krusche, Sindelfingen, DE;
Klaus Hossner, Wimsheim, DE;
Wolfgang Sandkoetter, Herrenberg, DE;
Bitzer Kuehlmaschinenbau GmbH, Sindelfingen, DE;
Abstract
In order to improve a screw compressor comprising a housing with a rotor chamber, two screw rotors arranged in the rotor chamber, a slide for controlling the capacity adjoining the rotor chamber, an adjusting device comprising a cylinder and an associated control device with which an inflow and a return flow of the medium provided for actuating the cylinder is controllable in a continuous control mode, such that the control device operates reliably, it is proposed that the cylinder chamber comprise a return flow opening and an intermediate return flow opening, and that the control device activate the return flow opening in the control mode for continuous control in a partial control range between an intermediate position and a minimum position, and activate the corresponding intermediate return flow opening defining the intermediate position for continuous control of piston positions outside of the partial control range.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile