Carrier Corporation

Syracuse University

Hussein Ezzat Khalifa

James William Bush

Harry E Eaton

Keshava Basavapatna Kumar

Clark VanTine Cooper

Philip H McCluskey

Reng Rong Lin

Ronald T Drost

Hong Du

Paula R DeBlois, Legal Representative

Alexander Lifson

Thomas R Barito

Raymond L DeBlois

Paula R DeBlois

Yung Ho

John P Giffune

Raymond Deblois

A micro environmental control system that can remove or add 30W from or to the near range personal microenvironment of a user. For cooling, the &#x3bc;X uses a micro vapor compression system during the un-occupied period to freeze a phase-change-material in a thermal storage module. A fan then moves air over the phase-change-material to deliver cooled air. Heating is delivered by a small electric heater integrated into a condensing unit. The resulting system is inexpensive to build and uses a limited amount of energy.

Micro environmental control system

A screw machine () has a rotor housing () defining overlapping bores (--). Female rotor () is located in bore (-) and male rotor () is located in bore (-). A wear resistant coating is deposited on the tips (--) of the rotors. A conformable coating is deposited on the valleys (--) of the rotors. A conformable coating is depsoited on the surface of the bores coacting with the rotors.

Screw machine

A screw machine () has a rotor housing () defining overlapping bores (--). Female rotor () is located in bore (-) and male rotor () is located in bore (-). A wear resistant coating is deposited on the tips (--) of the rotors. A conformable coating is deposited on the valleys (--) of the rotors. A conformable coating is deposited on the surface of the bores coacting with the rotors.

A screw machine ( ) has a rotor housing ( ) defining overlapping bores ( - - ). Female rotor ( ) is located in bore ( - ) and male rotor ( ) is located in bore ( - ). A wear resistant coating is deposited on the tips ( - - ) of the rotors. A conformable coating is deposited on the valleys ( - - ) of the rotors. A conformable coating is depsoited on the surface of the bores coacting with the rotors.

A pressure relief device has a chamber formed in a fixed scroll of a scroll-type machine, such as a scroll compressor. A piston is housed within the chamber releasably sealingly engaging a first passage which exposes the chamber to a discharge port formed in the fixed scroll. A second passage exposes the chamber to a suction plenum. A third passage exposes the chamber to pockets formed by the fixed and orbiting scrolls of the scroll compressor. In certain preferred embodiments, a pressure relief valve having a stem and a head is housed within a cavity formed in the piston. The head is biased by a spring into releasable sealing engagement with an aperture formed in the piston. The pressure relief valve passes fluid to the suction plenum whenever the difference between a discharge pressure and a suction pressure exceeds a predetermined value. The piston passes fluid to the suction plenum whenever the ratio of discharge pressure to suction pressure exceeds a predetermined value.

Combined pressure ratio and pressure differential relief valve

An improved scroll compressor lubrication system includes a number of embodiments wherein a lubricant port in the orbiting scroll supplies lubricant to the compression chambers throughout its entire orbiting cycle. The lubricant port is aligned with a recess in a flange of the fixed scroll throughout its entire orbiting cycle. In a further embodiment, the lubricant port is exposed to the compression chamber throughout its entire cycle. In other embodiments, the fixed scroll is provided with recesses spaced from each other by approximately 180.degree.. The lubricant port moves sequentially into and out of communication with these spaced recesses to supply lubricant to the compression chambers.

Lubrication systems for scroll compressors

A thermally responsive valve establishes a discharge to suction bleed responsive to the actuation of a thermal actuator. The thermal actuator is responsive to the temperature of the floor of the fixed scroll in a region near the outlet so that the actuator is responsive to local conditions indicative of impending failure.

Growing community of inventors

Manlius, NY, United States of America

Hussein Ezzat Khalifa