Highly Energy Efficient Compressor for Air-conditioning Systems

Technology Overview

Mechanical efficiency is key to the performance of a compressor. While reciprocating piston-cylinders compressor exhibit good mechanical efficiency, the reciprocating action results in significant vibration and noise problems. Rotary type compressors, on the other hand, are compact in nature and possess good vibration characteristics. However, frictional losses are predominant and have thus limited the effciency and reliability of the machines.  This technology relates to a compressor design with a revolving vane mounted into a slot of an eccentric rotor located within a rotating cylinder. The rotating motion of both the rotor and the cylinder allows minimum sliding friction between the 2 components compared to conventional rotary compressors. As a result, the compressor's operating efficiency is improved, contributing to higher energy effciency and better reliability.

Technology Features & Specifications

The revolving vane compressor consists of the following components: A rotor housed within the cylinder which is eccentrically mounted relative to the cylinder A vane mounted in a slot within the rotor for sliding movement relative to the rotor The vane is securely connected to the cylinder, forcing the cylinder to rotate with the rotor   

Potential Applications

Heat Pumps Refrigerators Automobiles Residential Air Conditioning Unit

Market Trends and Opportunities

According to Frost & Sullivan market report, the year-on-year sales for heating and cooling compressors has shown double digits growth for the past 10 years. Driven by increase demand for heating, ventilation and conditioning (HVAC) products as a result of increase in population growth and rapid urbanisation, the global market size for heating and cooling compressor is estimated to be more than 25 billion US dollars per annum.

Customer Benefits

The revolving vane compressor technology offers significant advantages over conventional compressors used for air conditioning. Most notably: Low production cost as fewer parts and parts simpler geometry are used Improvement in system reliability as having fewer moving components effectively reduces the number of contact points and the friction induced Ease of manufacturing as existing manufacturing processes can be adoptable to manufacture the component parts  Superior performance due to improvement in volumetric and mechanical efficiency Lower vibration and noise level

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