Patent
Compressor pulse width modulation
TLDR
In this article, the capacity modulation system of a scroll compressor is described, where the non-orbiting scroll member moves into engagement with the orbiting scroll when the chamber is placed in communication with the discharge chamber.Abstract:
A scroll compressor includes a capacity modulation system. The capacity modulation system has a piston that is connected to the non-orbiting scroll that disengages the non-orbiting scroll from the orbiting scroll when a pressure chamber is placed in communication with the suction chamber of the compressor. The non-orbiting scroll member moves into engagement with the orbiting scroll when the chamber is placed in communication with the discharge chamber. The engagement between the two scrolls is broken when the pressure chamber is placed in communication with fluid from the suction chamber. A solenoid valve controls the communication between the pressure chamber and the suction chamber. By operating the valve in a pulsed width modulated mode, the capacity of the compressor can be infinitely varied between zero and one hundred percent.read more
Citations
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References
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Patent
Scroll-type machine with axially compliant mounting
TL;DR: In this paper, a scroll-type machine was described for use as a refrigerant compressor and incorporating an improved suspension system for the nonorbiting scroll whereby the latter may be pressure biased for the purpose of augmenting tip sealing.
Patent
An adaptive control for a refrigeration system using pulse width modulated duty cycle scroll compressor
TL;DR: In this article, a control for a refrigeration system serviced by a special pulse width modulated compressor (30) coupled to a condenser (32) and evaporator (42) is presented.
Patent
Capacity modulated scroll machine
TL;DR: In this paper, the capacity of a scroll-type machine is modulated by relative axial movement between the scroll members so as to form a leakage path across the wrap tips and opposed end plates.
Patent
Scroll compressor with liquid injection
Caillat Jean-Luc,Wang Karl +1 more
TL;DR: A scroll-type refrigerant compressor for use in a conventional refrigerating circuit and having liquid-refrigerant compressor cooling provided by the injection of liquid refrigerant into an intermediate biasing chamber and/or specifically located bleed holes is described in this paper.
Patent
Scroll machine with capacity modulation
TL;DR: In this paper, an improved capacity modulation system for scroll-type compressors is disclosed in which a valve body of a solenoid valve assembly is secured to the inner wall of the hermetic shell and the actuating coil is mounted on the outer surface thereof.