Robertshaw Controls Company

Kyle William Svejcar

Nishaj Attassery

Eapen Chacko

James E Pearson

Thomas J Davern

Michael J Koch

Daniel Knapper

A multi-port valve provides three inlets and three outlets. In many embodiments, seven flow configurations are provided. A stemshell can rotate internal to a housing to direct fluid from specific inlets to specific outlets while saving flow through various inlet/outlet ports as required by the various flow configurations.

Six port valve

Embodiments of a multi-port multi-mode valve are provided. The multi-port multi-plane valve includes a housing which defines an internal cavity. The housing further includes a plurality of ports, including two inlet ports and four outlet ports. Each of the plurality of ports is in communication with the internal cavity. A shell body is rotatably disposed within the internal cavity and provides selectable fluid communications between the ports. A seal member is also provided which has a plurality of openings and surrounds the shell body. Six modes of operation are provided by rotation of the shell body.

Multi-port multi-mode valve

A multiport valve has a plurality of inlets and outlets with selected positions to selectively direct fluid differently through the valve based on the position of the valve. A cylindrical exterior stemshell rotates internal to a housing to position channels and/or bores to provide the desired flow paths. Some flow paths are channels which extend linearly from one port to another, whether formed into an exterior surface, parallel to an axis of rotation of the stemshell, or pass from an inlet to an outlet in the exterior surface of the stemshell, preferably separated from flow from flow to an internal passage, which is preferably colinear with the axis of rotation, for at least some embodiments.

Five port valve

An air damper is provided. The air damper includes a base plate having a plurality of plate openings defining an area for the passage of air through the air damper. The slide is slideable over the base plate. The air damper also includes a slide having a plurality of slide openings and a plurality of slide closures. The air damper further includes a stepper motor coupled to the slide to move the slide in linear steps to change the area for the passage of air.

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Westchester, IL, United States of America

Kyle William Svejcar