Pump system for cryogenic liquid delivery vehicles

Pumps – Operated by art device – Vehicle mounted or attached

Patent

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Details

417390, 62 55, 62239, 280 5E, F04B 908, F04B 1700, F17C 702, B60P 322

Patent

active

041770170

ABSTRACT:
The system is used for pumping cryogenic liquids from delivery vehicles including trucks, semi-trailers and trailers. An internal combustion engine is mounted at the forward end of the vehicle or, in the case of a trailer truck at the forward end of the trailer, and drives a variable displacement hydrostatic transmission which comprises a hydraulic pump driven directly from the output shaft of the internal combustion engine. The transmission also comprises a high speed hydraulic motor coupled by hydraulic lines with the hydraulic pump and arranged in a closed loop system. The hydraulic motor is disposed at a rear end of the vehicle (trailer) and has its output shaft coupled directly to the cryogenic delivery pump of the vehicle. A control panel is mounted in a rear compartment of the vehicle and allows the operator to control, inter alia, engine speed, hydrostatic drive speed and cryogenic pump output pressure.

REFERENCES:
patent: 2060484 (1936-11-01), Barrett
patent: 2506911 (1950-05-01), Ziegler
patent: 2528131 (1950-10-01), Garretson
patent: 2638224 (1953-05-01), Rupp
patent: 3279382 (1966-10-01), Bennett
patent: 3279383 (1966-10-01), Smith
patent: 3567342 (1971-03-01), Jackson
patent: 3796518 (1974-03-01), Weaver
patent: 3853272 (1974-12-01), Decker et al.

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