Pump system for cryogenic liquid delivery vehicles
US4177017A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 5, 1978 |
| Grant date | Dec 4, 1979 |
| Priority date | — |
| Expiry date | Jun 5, 1998 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60P3/224
- WIPO fieldHandling
- WIPO sectorMechanical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.