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:
Feb. 10, 1981
Filed:
Sep. 07, 1979
Alan G Butt, La Crosse, WI (US);
The Trane Company, La Crosse, WI (US);
Abstract
A plate type heat exchanger is shown in which liquid and vaporous phases of a heat exchange fluid are separately distributed uniformly across the width of a heat exchanger and after mixing, flow therethrough in heat exchange relationship with a feed fluid. Crossover means are disposed in the metallic plates separating adjacent passages in which the fluid and vaporous heat exchange fluids flow and are operative to provide fluid communication between the adjacent passages so that the two phases of heat exchange fluid may mix. Slotted metallic bars provide structural support to the metallic plates in the proximity of the crossover means and restrict the flow of one of the liquid and vaporous fluids through the crossover means. In one embodiment of the invention, the rate of flow of one of the heat exchange fluids through the heat exchanger is continuously adjustable over a limited range by metering control means; in another embodiment, it is controlled in discrete steps. The spacing, width, and/or depth of the slots formed in the slotted metallic bars otherwise determine the rate of fluid flow through the crossover means, for a given pressure drop.