DOUBLE-ACTING REFRIGERATION COMPRESSOR
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United States of America Patent
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Feb 7, 2017
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Jan 7, 2011
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Abstract
A double-acting refrigerant compressor includes a piston freely guided in a fixed mounted cylinder. The cylinder includes an inlet valve plate having an inlet valve. The piston includes a flow channel extending internally through the piston. The flow channel of the piston includes at least one back-check valve being arranged with a unidirectional flow. The piston includes a second cylinder portion within which is guided over a fixed mounted inverse piston. The inverse piston includes an inverse piston flow channel with an outlet valve in fluid communication with a volume within the second cylinder portion. Alternative embodiments include a piston with interior cylinders where the piston is guided over the two inverse pistons.
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