Minnesota Valley Engineering, Inc.

Other

George W Kalet

Keith W Gustafson

Martin S Taylor

The fueling station consists of a vacuum insulated storage vessel for storing a large quantity of LNG at low pressure. The LNG is delivered to one of two relatively small volume fuel conditioning tanks where the pressure and temperature of the LNG can be raised or lowered as dictated by the needs of the system. The pressure and temperature in the fuel conditioning tanks are raised by delivering high pressure natural gas vapor thereto from a high pressure bank. The temperature and pressure can be lowered by venting natural gas from the fuel conditioning tanks and/or delivering LNG thereto. The fuel conditioning tanks are connectable to a vehicle's fuel tank via a fill line to deliver natural gas and LNG to the vehicle and to vent natural gas from the vehicle to the fueling station.

No loss fueling system for natural gas powered vehicles

The fueling station consists of a vacuum insulated storage vessel for storing a large quantity of LNG at low pressure. The LNG is delivered to one of two relatively small volume fuel conditioning tanks where the pressure and temperature of the LNG can be raised or lowered as dictated by the needs of the system, The pressure and temperature in the fuel conditioning tanks are raised by delivering high pressure natural gas vapor thereto from a high pressure bank. The temperature and pressure can be lowered by venting natural gas from the fuel conditioning tanks and/or delivering LNG thereto. The fuel conditioning tanks are connectable to a vehicle's fuel tank via a fill line to deliver natural gas and LNG to the vehicle and to vent natural gas from the vehicle to the fueling station,

Two LNG storage tanks receive LNG from a fill station. The two storage tanks are connected to an overflow tank into which the LNG flows during pressurization of the system. The overflow tank is connected to the use device, i.e. the vehicle's engine, through a heat exchanger to provide high pressure natural gas thereto. The fill station initially delivers LNG to the two storage tanks until the tanks are substantially filled with LNG whereupon the fill station automatically stops delivery of LNG and begins to deliver natural gas vapor to the storage tanks until the pressure in the system reaches a predetermined maximum that is equal to or greater than the pressure required by the use device. During the pressurization of the system some of the LNG in the two storage tanks is forced into the overflow tank by the incoming natural gas vapor.

LNG delivery system

The present invention uses an on-board source of compressed natural gas (CNG) to pressurize the LNG in the vehicle's LNG storage tanks such that high pressure natural gas can be delivered to the use device. More than one LNG storage tank can be used without increasing the amount of CNG required if the storage tanks are connected together in series so that the upstream storage tank pressurizes the downstream storage tank.

Vehicle mounted LNG delivery system

There is disclosed a syrup delivery system for carbonated beverages which provides delivery of beverage syrup from a syrup container to a beverage mixer. The syrup delivery system comprises a source of pressurized gas, conveniently the CO.sub.2 gas source which is also used to carbonate the water used to mix the carbonated beverage, and a syrup container. The syrup container comprises a rigid drum having an opening with a closure and a pressurizing fitting for connection to the source of presurized gas. A collapsible bag for holding the syrup is fitted inside of the rigid drum and is connected by means of a double ended connector through the closure to the beverage mixer. In operation, the CO.sub.2 pressurized gas is introduced into the rigid tank between the inside of the tank and the outside of the collapsible bag thereby forcing the syrup out of the bag and to the beverage mixer at a constant pressure. Because the closure is a standard size to fit existing small and large syrup containers, the syrup deliver system can be retrofitted into existing bulk on-premises syrup containers as well as retrofitted into smaller existing syrup containers. In both cases, the need to clean and sanitize the syrup containers is eliminated.

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Marietta, GA, United States of America

George W Kalet