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:
May. 03, 1977
Filed:
Jun. 21, 1976
Hans-Walter Dodt, Darmstadt, DT;
Carl Schenck AG, Darmstadt, DT;
Abstract
A control valve absorption dynamometers has a closed end discharge conduit forming a cylinder with discharge openings in the cylinder walls. A floating piston is movable in the cylinder to vary the area of the discharge openings. A first piston surface is subject to the pressure at the exit port of the dynamometer or to the pressure downstream of a butterfly valve arranged between the piston and the exit port of the dynamometer. A second piston surface which may be smaller than the first piston surface is subject to pressure from the dynamometer exit or from a pump whereby the piston is moved for varying the area of the discharge openings in the cylinder wall. The intake of the pump may be connected to the inlet or exit port of the dynamometer. Flow control means may be located directly next to said exit port in said discharge conduit to convert a turbulent flow into a uni-directional flow.