Systems for delivering liquified natural gas to an engine

Patent · Sat Jan 01 00:00:00 EST 2000

OSTI ID:873271

Bingham, Dennis N ^[1]; Wilding, Bruce M ^[1]; O'Brien, James E ^[1]; Siahpush, Ali S ^[1]; Brown, Kevin B ^[1]

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1. Idaho Falls, ID

A fuel delivery system includes a fuel tank configured to receive liquid natural gas. A first conduit extends from a vapor holding portion of the fuel tank to an economizer valve. A second conduit extends from a liquid holding portion of the fuel tank to the economizer valve. Fluid coupled to the economizer valve is a vaporizer which is heated by coolant from the engine and is positioned below the fuel tank. The economizer valve selectively withdraws either liquid natural gas or vaporized natural gas from the fuel tank depending on the pressure within the vapor holding portion of the fuel tank. A delivery conduit extends from the vaporizer to the engine. A return conduit having a check valve formed therein extends from the delivery conduit to the vapor holding portion of the fuel tank for pressurizing the fuel tank.

• Research Organization: Idaho National Laboratory (INL), Idaho Falls, ID (United States)
• DOE Contract Number: AC07-94ID13223
• Assignee: Bechtel BWXT Idaho, LLC (Idaho Falls, ID)
• Patent Number(s): US 6125637
• OSTI ID: 873271
• Country of Publication: United States
• Language: English

Related Subjects

systems
delivering
liquified
natural
gas
engine
fuel
delivery
tank
configured
receive
liquid
conduit
extends
vapor
holding
portion
economizer
valve
fluid
coupled
vaporizer
heated
coolant
positioned
below
selectively
withdraws
vaporized
depending
pressure
return
check
formed
therein
pressurizing
positioned below
return conduit
liquified natural
fuel delivery
conduit extends
fuel tank
formed therein
natural gas
check valve
receive liquid
liquid na
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