Patent ID: 9140261
Filing Date: 2015-09-22
Classification: F04B,F04C

Abstract:
1. A positive displacement compressor, comprising: a. a housing structure having a flow suction port, a flow discharge port, and a compressor cavity; b. a positive displacement drive device mounted inside said compressor cavity and driven in a compression phase to reduce said compressor cavity volume and propel flow from said suction port to said discharge port; c. a shunt pulsation trap apparatus comprising a trap chamber positioned adjacent to said compressor cavity, at least one pulsation dampening device positioned within said trap chamber, at least one trap inlet branching off from said compressor cavity into said pulsation trap chamber, and at least one trap outlet communicating with said compressor discharge port; d. wherein in operation said positive-displacement compressor is capable of achieving high gas pulsation and NVH reduction close to source and improving compressor off-design efficiency without using a serial pulsation dampener.