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:
Jan. 02, 1990
Filed:
Jul. 11, 1988
Bernard Zimmern, East Norwalk, CT (US);
Other;
Abstract
Liquid from the condenser 34 l is supplied to the innerspace of the motor through pipe 11 and flashes therein while cooling the motor. The resulting gas is sent through pipe 10 to an economizer hole 9 of the compressor. At full load, hole 9 is at a higher pressure than the intake of the compressor. At part load, hole 9 is at a pressure close to the intake pressure. A piston 12 is subjected on one face to the economizer hole pressure and on the other face to the intake pressure. When both pressures tend to be equal, piston 12 travels to shoulder 16 and establishes therewith a pressure drop elevating the pressure in motor housing 7, thereby to maintain in motor housing 7 a pressure able to urge liquid from the motor casing to the evaporator 37 through pipe 38.