Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Nitrogen liquid to gas converter










Image Number 6 for United States Patent #4290271.

A flameless nitrogen liquid to gas converter for providing high pressure nitrogen as to treat oil and gas wells. A diesel engine prime mover drives hydraulic pumps and motors to pressurize nitrogen and actuate an air fan. Heat for converting the liquid nitrogen to gaseous nitrogen is obtained from the engine jacket water, the engine exhaust, and the hydraulic oil from the hydraulic pumps and motors. Additional heat can be obtained from the hydraulic oil system by increasing the hydraulic system pressure with a hydraulic pressure control valve. At least one of the hydraulic pumps and its driven hydraulic motor is in a hydraulic circuit which includes variable means for increasing the pressure in the hydraulic circuit, a hydraulic oil-air heat exchanger, and a hydraulic oil reservoir. Hydraulic fluid from the other pumps and motors is transmitted through the hydraulic oil-air heat exchanger. The system includes an in-line heat exchange system in series in the air flow from upstream to downstream in the following order: hydraulic oil-air heat exchanger, engine water-heat exchanger, engine exhaust-air heat exchanger, nitrogen-air heat exchanger, and an air suction fan.








 
 
  Recently Added Patents
Manipulating parameterized cell devices in a custom layout design
Interconnecting network processors with heterogeneous fabrics
Antitheft apparatus for equipment with prime mover
Driver, current regulating circuit thereof, and method of current regulation, with alternating voltages therein
Phosphor and light emitting device
Image prediction encoding device, image prediction encoding method, image prediction encoding program, image prediction decoding device, image prediction decoding method, and image prediction
Linear FET feedback amplifier
  Randomly Featured Patents
Method of fabricating a printed circuitry substrate
Offset rotated transducers for acousto-optical tunable filters
Well casing thread protector
Determining one or more reachable states in a circuit using distributed computing and one or more partitioned data structures
Sling release mechanism
Heating assembly for a heating, ventilating and/or air conditioning installation for a vehicle cabin
Removable supply and uptake assemblies for lithographic plate material
Farnesyl dibenzodiazepinone, and processes for its production
Refillable filter cup for single serve beverage brewer
Stackable front entry storage tote