Patents by Inventor Lung Tan Hu

Lung Tan Hu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20090277403
    Abstract: The present invention provides a variable-coordination-timing type self-cooling engine capable of adjusting the initiation timings and the injected amount of each injection process according to the change in the combusting pressure with the variable-coordinate-timing system. The variable-coordination-timing system will regulate the air flow between each coordinate-channel and its associated power-cylinder to optimize the cooling effects, and the hot-combusting-medium in each power-cylinder will be mixed with a flow of compressed air at a controlled rate and pressure, which prevents the hot-combusting-medium from charging into the primary-coordinate-channel and the secondary-coordinate-channel, thereby sustaining the cooling effects of the self-cooling-16-process in continuous high power output operation.
    Type: Application
    Filed: July 9, 2009
    Publication date: November 12, 2009
    Inventor: Lung-tan Hu
  • Patent number: 7614249
    Abstract: The present invention provides an air-condition heat pump system and two-stage defrosting control method for continuous operation under an environment temperature range from 20 degree to negative 40 degree Celsius or lower. The heat pump system employs different defrosting methods under different temperature and humidity conditions. A ventilation and humidity control system is also provided for implementing the cross defrosting heat pump system within an indoor dimension.
    Type: Grant
    Filed: December 20, 2005
    Date of Patent: November 10, 2009
    Inventor: Lung Tan Hu
  • Publication number: 20090173092
    Abstract: The present invention provides an air-conditioning system capable of continuous heating operation over an outdoor temperature range of 20 degree to negative 40 degree Celsius. The present invention utilizes at least two sets of the evaporators capable of cross-reverse refrigerant circulation and cross-air defrosting process, which alternately generates the heat energy required for the defrosting process and the air-conditioning, and said air-conditioning system can apply a combination of the two defrost methods to raise overall heating efficiency.
    Type: Application
    Filed: March 16, 2009
    Publication date: July 9, 2009
    Inventor: Lung-Tan Hu
  • Publication number: 20090173091
    Abstract: The present invention provides a multi-range composite-evaporator type cross-defrosting system for continuous heating operation under an environment temperature range from 20 degree to negative 40 degree Celsius. Said system employs a combination of two defrosting methods under different temperature and humidity conditions; the first defrosting method is used for the outdoor temperature range of 20 degree Celsius to 0 degree Celsius, the second defrosting method is used in the outdoor temperature range of 10 degree Celsius to negative 40 degree Celsius, and a control system will adjust the appropriate threshold for switching between the two defrosting methods.
    Type: Application
    Filed: March 16, 2009
    Publication date: July 9, 2009
    Inventor: Lung-Tan Hu
  • Patent number: 7213407
    Abstract: The present invention provides an air-condition heat pump capable of defrosting and air-conditioning at same time. The present invention utilizes at least two evaporators, which harvest the energy from one working evaporator to provide energy for defrost operation of another evaporator, thus the air-condition heat pump can defrost without additional energy. Under low temperature working condition, the present invention utilizes a suction pressure boost to increase efficiency.
    Type: Grant
    Filed: April 12, 2005
    Date of Patent: May 8, 2007
    Inventor: Lung Tan Hu
  • Patent number: 7143725
    Abstract: The present invention provides a dual six-stroke self-cooling internal combustion engine which utilizes a turbo and a cooling cylinder to compress cool air onto the engine head and reduce the engine temperature. The present invention greatly reduces the size and the manufacture cost of the cooling equipments such as radiator and intercooler by cooling the power cylinder from within. In addition, the present invention slightly increases the fuel efficiency and reduces the exhaust temperature.
    Type: Grant
    Filed: November 22, 2005
    Date of Patent: December 5, 2006
    Inventor: Lung Tan Hu
  • Patent number: 6918358
    Abstract: By the utilizing of a slave cylinder working in coordination with a master cylinder, the slave cylinder both receives cool atmospheric air and receives hot, partially un-burnt exhaust gases from the master cylinder to create a second power-stroke in the slave cylinder. With the two coordinating cylinders, the entire working process is from 0 to 810 degrees of revolution crankshaft. The master cylinder cycles work from 0 to 720 degrees of revolution and slave cylinder cycles work from 90 to 810 degrees of revolution. The master cylinder begins to intake air and fuel at 0 degree of revolution and slave cylinder begins to intake air at 90 degrees of revolution. There is an angle of 60-120 degrees differences between master and slave cylinder, where the slave cylinder is trailing the master.
    Type: Grant
    Filed: July 15, 2003
    Date of Patent: July 19, 2005
    Inventor: Lung Tan Hu
  • Publication number: 20040123821
    Abstract: By the utilizing of a slave cylinder working in coordination with a master cylinder, the slave cylinder both receives cool atmospheric air and receives hot, partially un-burnt exhaust gases from the master cylinder to create a second power-stroke in the slave cylinder. With the two coordinating cylinders, the entire working process is from 0 to 810 degrees of revolution crankshaft. The master cylinder cycles work from 0 to 720 degrees of revolution and slave cylinder cycles work from 90 to 810 degrees of revolution. The master cylinder begins to intake air and fuel at 0 degree of revolution and slave cylinder begins to intake air at 90 degrees of revolution. There is an angle of 60-120 degrees differences between master and slave cylinder, where the slave cylinder is trailing the master.
    Type: Application
    Filed: July 15, 2003
    Publication date: July 1, 2004
    Inventor: Lung Tan Hu