COMPRESSOR ROTATORIO DE DESCARGA VARIAVEL

• Main Authors: NAGASAKU EIICHI, YASUNAGA MASAO, HOTTA TERUYUKI, KUROKAWA YOSHIKI
• Format: Patent
• Language: Portuguese
• Published: 23.11.1982
• Edition: 3
• Subjects: BLASTING; HEATING; LIGHTING; MECHANICAL ENGINEERING; POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTMACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTPUMPS; WEAPONS

A variable discharge rotary compressor has a housing, a rotor disposed therein and vanes mounted on the rotor to cooperate with the housing and the rotor to define variable volume working chambers disposed close to and separated from an intake chamber by an end wall in which a communication passage is formed to communicate the working chambers with the intake chamber. The communication passage is located at a point where the working chambers are in their compression strokes. A valve is disposed in the communication passage to control the communication between the compression chambers and the intake chamber and is operative to communicate the compression chambers with the intake chamber to permit a part of the fluid in the compression chambers to be returned therefrom back into the intake chamber when the discharge of the compressor exceeds a predetermined discharge requirement. The communication passage is of a very short length so that the fluid passing through the communication passage toward the intake chamber can be prevented from being unduly heated by the heat of the compressor body.