Patent ID: 7578142
Filing Date: 2009-08-25
Classification: F02C,F25B,Y02E

Abstract:
1. A power installation comprising: a gas expansion means consisting of more than one gas expansion machine part arranged in the direction of natural gas pressure drop; at least one converter of mechanical energy having a rotor being connected kinematically with the rotor of at least one gas expansion machine; exchangers-refrigerators being not less than the number of the gas expansion machines; and wherein the first gas expansion machine has an inlet being connected to a high pressure natural gas source; the outlet of a preceding gas expansion machine is connected both to the inlet of the next gas expansion machine and to the inlet branch pipe on the cooling agent side of the corresponding exchanger-refrigerator; the outlet branch pipe on the cooling agent side of at least one exchanger-refrigerator is connected to a low pressure natural gas means.