Patent ID: 8959911
Filing Date: 2015-02-24
Classification: F01M,F02B,F02D,F02N

Abstract:
1. A method comprising: providing a pressurized fluid from an internal combustion engine to an accumulator during operation of the internal combustion engine; storing the pressurized fluid within the accumulator; providing the stored pressurized fluid to a boost mechanism in communication with an air source and the internal combustion engine during an engine off condition; and providing the pressurized fluid to the accumulator via a first flow path and providing the pressurized fluid from the accumulator to the boost mechanism via a second flow path, the second flow path being in a parallel flow arrangement to the first flow path, a check valve allowing fluid flow to the accumulator through the first flow path and inhibiting fluid flow from the accumulator to the boost mechanism through the first flow path, and a control valve controlling fluid communication between the accumulator and boost mechanism through the second flow path.