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:
May. 08, 2007
Filed:
May. 10, 2005
Doron Shapiro, St. Louis, MO (US);
Doron Shapiro, St. Louis, MO (US);
Hussmann Corporation, Bridgeton, MO (US);
Abstract
A refrigeration system includes a dual-piston linear compressor including a first piston disposed in a first cylinder and a second piston opposed to the first piston and disposed in a second cylinder. The first piston divides the first cylinder into a first suction chamber and a first discharge chamber and the second piston divides the second cylinder into a second suction chamber and a second discharge chamber. The refrigeration system also includes a first gas flow path through the linear compressor, a second gas flow path through the linear compressor, and a controller operable to switch the linear compressor between an economizer cycle and a single stage cycle wherein in the economizer cycle flow of gas is along the first gas flow path and in the single stage cycle flow of gas is along the second gas flow path. At least one discharge control valve coupled to the controller and responsive to control signals from the controller is operable to direct gas from the first and second discharge chambers to the first gas flow path or the second gas flow path. At least one suction control valve coupled to the controller and responsive to control signals from the controller is operable to direct gas to the first and second suction chambers along the first gas flow path or the second gas flow path.