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1. (WO2001001036) HIGH PRESSURE PNEUMATIC DRIVE FOR LIQUID INJECTION APPARATUS

Pub. No.:    WO/2001/001036    International Application No.:    PCT/CA2000/000760
Publication Date: Fri Jan 05 00:59:59 CET 2001 International Filing Date: Fri Jun 23 01:59:59 CEST 2000
IPC: F15B 1/26
F17D 3/12
Applicants: ENVIRODRIVE INC.
ENGLISH, Rodney, Ralph
ENGLISH, Glendon, Elmer
Inventors: ENGLISH, Rodney, Ralph
ENGLISH, Glendon, Elmer
Title: HIGH PRESSURE PNEUMATIC DRIVE FOR LIQUID INJECTION APPARATUS
Abstract:
A pressurized working environment for a pneumatic device (32, 34) which permits emission-free utilization of the potential mechanical energy of pressure differentials within compressed gas systems is disclosed. The pneumatic device is contained within a pressure vessel (12) and the pneumatic device exhaust (35) is in fluid communication with the interior of the pressure vessel. In use, the interior of the pressure vessel is in fluid communication with an area of lower pressure in the compressed gas system and the pneumatic device intake (14) is in fluid communication with an area of higher pressure in the compressed gas system. In use, the gas from the area of higher pressure drives the pneumatic device and is then exhausted to the area of lower pressure.