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. 26, 1980
Filed:
Dec. 26, 1978
Gordon L Mount, W. Monroe, NY (US);
Howard W Kirtland, N. Syracuse, NY (US);
Carrier Corporation, Syracuse, NY (US);
Abstract
A diffuser control for controlling vapor flow through a diffuser passage comprising an annular recess defined by a housing of the passage and in communication therewith, a diffuser control ring supported for movement within the annular recess and the diffuser passage between a full throttling position, wherein the restriction means throttles vapor flow through the diffuser passage, and an open position for permitting a substantially free flow of vapor through the diffuser passage. The control further comprises a first set of springs for urging the control ring toward the full throttling position, and a second set of springs for urging the control ring toward an intermediate throttling position located between the open and full throttling positions. The diffuser control also comprises a low pressure conduit for connecting the annular recess to a low pressure source, and a intermediate pressure conduit for connecting the annular recess to an intermediate pressure source. Valves are provided for regulating vapor flow through the low pressure and intermediate pressure conduits, and include a first position for maintaining a low pressure in the annular recess for maintaining the control ring in the open position, a second position for maintaining an intermediate pressure in the annular recess for maintaining the control ring in the intermediate throttling position, and a third position for maintaining a high pressure in the annular recess wherein the first set of springs maintains the control ring in the full throttling position.