GAS TRANSFER SYSTEM FOR LIQUID FUELS

• US 3,803,858 A
• Filed: 03/07/1972
• Issued: 04/16/1974
• Est. Priority Date: 10/08/1970
• Status: Expired due to Term

• Current Assignee: Michael Siem
• Original Assignee: Michael Siem
• Inventors: Simon, Michael
• Primary Examiner(s): Perlin, Meyer
• Assistant Examiner(s): Capossela, Ronald C.
• Application Number:
  US05/232,548
• Time in Patent Office: 770 Days
• Field of Search: 222/3,4,394 62/7,50,51,55 60/39.48
• US Class Current: 62/50.2
• CPC Class Codes: B67D 7/72 Devices for applying air or other gas pressure for forcing liquid to delivery point

Abstract

Liquid fuels are transferred from a fuel tank by the pressure of a liquified cyrogenic gas vaporized by heat exchange with the liquid fuel.

Claims

1. An apparatus for transferring liquid fuel from a tank having a discharGe outlet by means of a liquified cryogenic gas comprising;

providing a storage receptacle containing liquid cryogenic gas at low pressure and volume, providing an indirect heat exchanger in the discharge outlet of said tank, providing a connection from said storage receptacle to said indirect heat exchanger so that liquid cryogenic gas will be vaporized by the heat from fuel flowing in said discharge outlet, and a connection from said indirect heat exchanger to said tank above the fuel in said tank whereby the vapor pressure of said cryogenic gas will aid in transfer of said fuel from said tank.

2. The apparatus of claim 1, in which the pressure over the liquid fuel in the tank is preselected by selection of the liquified cryogenic gas.