Patents by Inventor Denis Ding

Denis Ding 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).

  • Patent number: 9625099
    Abstract: A system and method for reducing the pressure of a pressurized gas is provided, the system including a pressure reduction stage, the pressure reduction stage including: a knock-out bottle; a control valve connected to a gas stream inlet and configured to introduce a gas stream at an initial pressure level into the knock-out bottle; an output connected to a gas stream outlet; and a pressure sensor for monitoring the pressure within the knock-out bottle and changing the operational state of the control valve to maintain the pressure inside the knock-out bottle within a pressure range. More than one pressure reduction stage may be implemented in series to provide a more gradual step down in the gas pressure.
    Type: Grant
    Filed: April 23, 2015
    Date of Patent: April 18, 2017
    Assignee: Clean Energy Fuels Corp.
    Inventor: Denis Ding
  • Publication number: 20160312955
    Abstract: A system and method for reducing the pressure of a pressurized gas is provided, the system including a pressure reduction stage, the pressure reduction stage including: a knock-out bottle; a control valve connected to a gas stream inlet and configured to introduce a gas stream at an initial pressure level into the knock-out bottle; an output connected to a gas stream outlet; and a pressure sensor for monitoring the pressure within the knock-out bottle and changing the operational state of the control valve to maintain the pressure inside the knock-out bottle within a pressure range. More than one pressure reduction stage may be implemented in series to provide a more gradual step down in the gas pressure.
    Type: Application
    Filed: April 23, 2015
    Publication date: October 27, 2016
    Applicant: Clean Energy Fuels Corp.
    Inventor: Denis DING
  • Publication number: 20160298616
    Abstract: Embodiments of a system for increasing the flow rate of a compressor system are provided. The system includes a gas inlet component, a compression component including a compressor; and an injection component having a compression component connection connected to one or more chambers of the compressor. By injecting a secondary high-pressure gas stream into the compressor through the injection component, the discharge flow rate of the compressor system may be increased above the flow rate capable based on the design of the compressor, without additional equipment or unduly increasing power consumption of the compressor system.
    Type: Application
    Filed: April 9, 2015
    Publication date: October 13, 2016
    Applicant: CLEAN ENERGY FUELS CORP.
    Inventor: Denis DING
  • Patent number: 9395047
    Abstract: Methods and systems and are presented for estimating the amount of natural gas provided to a vehicle at a natural gas time-fill filling station. The methods comprise measuring and wirelessly transmitting pre- and post-fill pressures measurements of compressed natural gas in a compressed natural gas storage tank on-board a natural gas vehicle.
    Type: Grant
    Filed: February 26, 2014
    Date of Patent: July 19, 2016
    Assignee: CLEAN ENERGY FUELS CORP.
    Inventor: Denis Ding
  • Patent number: 8950441
    Abstract: Embodiments of the present invention are directed toward a reciprocating compressor having a high pressure storage vessel let down for a CNG station for refueling motor vehicles, wherein the CNG station design utilizes inlet gas from a local gas utility. By supplementing the inlet gas with a pressure let down in order to de-pressurize the gas from a high-pressure storage vessel, the CNG station has the ability to increase and adjust its flow capacity.
    Type: Grant
    Filed: June 1, 2011
    Date of Patent: February 10, 2015
    Assignee: Clean Energy Fuels Corp.
    Inventors: Denis Ding, Mitchell Pratt
  • Patent number: 8875750
    Abstract: A reciprocating compressor comprises a gas inlet section including an inlet gas meter for metering inlet gas from a high pressure storage vessel, a compressor, a valve control panel and storage, a pressure let down that depressurizes the high pressure gas from the high pressure storage vessel to the inlet of the compressor section, a heat exchanger having thermal storage media, and a dispenser.
    Type: Grant
    Filed: November 16, 2012
    Date of Patent: November 4, 2014
    Assignee: Clean Energy Fuels Corp.
    Inventors: Denis Ding, Mitchell Pratt
  • Patent number: 8839829
    Abstract: Embodiments of the present invention provide a natural gas compression system, comprising a gas inlet component for the entrance of natural gas into the system, a booster component for increasing the pressure of the natural gas, a drying component for drying the natural gas, a compressor component including a reciprocating compressor for further increasing the pressure of the natural gas, a valve control panel and storage component, and a dispensing component.
    Type: Grant
    Filed: May 16, 2011
    Date of Patent: September 23, 2014
    Assignee: Clean Energy Fuels Corp.
    Inventors: Denis Ding, Mitchell Pratt
  • Publication number: 20140246117
    Abstract: Methods and systems and are presented for estimating the amount of natural gas provided to a vehicle at a natural gas time-fill filling station. The methods comprise measuring and wirelessly transmitting pre- and post-fill pressures measurements of compressed natural gas in a compressed natural gas storage tank on-board a natural gas vehicle.
    Type: Application
    Filed: February 26, 2014
    Publication date: September 4, 2014
    Applicant: CLEAN ENERGY FUELS CORP.
    Inventor: Denis Ding
  • Patent number: 8783307
    Abstract: The present invention provides a CNG time fill system having a compression system including a gas dryer and one or more gas compressors, a gas storage system for storing the natural gas, a manifold time fill system for filling a plurality of natural gas vehicles with the natural gas, a pressure transducer or pressure transmitter for detecting the pressure within the manifold time fill system, and an automatic shut off valve for selectively stopping the flow of gas into the manifold time fill system.
    Type: Grant
    Filed: December 29, 2010
    Date of Patent: July 22, 2014
    Assignee: Clean Energy Fuels Corp.
    Inventor: Denis Ding
  • Publication number: 20130068345
    Abstract: A reciprocating compressor comprises a gas inlet section including an inlet gas meter for metering inlet gas from a high pressure storage vessel, a compressor, a valve control panel and storage, a pressure let down that depressurizes the high pressure gas from the high pressure storage vessel to the inlet of the compressor section, a heat exchanger having thermal storage media, and a dispenser.
    Type: Application
    Filed: November 16, 2012
    Publication date: March 21, 2013
    Inventors: Denis Ding, Mitchell Pratt
  • Publication number: 20110303323
    Abstract: Embodiments of the present invention are directed toward a reciprocating compressor having a high pressure storage vessel let down for a CNG station for refueling motor vehicles, wherein the CNG station design utilizes inlet gas from a local gas utility. By supplementing the inlet gas with a pressure let down in order to de-pressurize the gas from a high-pressure storage vessel, the CNG station has the ability to increase and adjust its flow capacity.
    Type: Application
    Filed: June 1, 2011
    Publication date: December 15, 2011
    Inventors: Denis Ding, Mitchell Pratt
  • Publication number: 20110240139
    Abstract: Embodiments of the present invention provide a natural gas compression system, comprising a gas inlet component for the entrance of natural gas into the system, a booster component for increasing the pressure of the natural gas, a drying component for drying the natural gas, a compressor component including a reciprocating compressor for further increasing the pressure of the natural gas, a valve control panel and storage component, and a dispensing component.
    Type: Application
    Filed: May 16, 2011
    Publication date: October 6, 2011
    Inventors: Denis Ding, Mitchell Pratt
  • Publication number: 20110155278
    Abstract: The present invention provides a CNG time fill system, comprising a compression system including a gas dryer and one or more gas compressors, a gas storage system for storing the natural gas, a manifold time fill system for filling a plurality of natural gas vehicles with the natural gas, a pressure transducer or pressure transmitter for detecting the pressure within the manifold time fill system, and an automatic shut off valve for selectively stopping the flow of gas into the manifold time fill system.
    Type: Application
    Filed: December 29, 2010
    Publication date: June 30, 2011
    Inventor: Denis Ding
  • Patent number: 7967036
    Abstract: The present invention provides a natural gas compression system, comprising a gas inlet component for the entrance of natural gas into the system, a booster component for increasing the pressure of the natural gas, a drying component for drying the natural gas, a compressor component including a reciprocating compressor for further increasing the pressure of the natural gas, a valve control panel and storage component, and a dispensing component.
    Type: Grant
    Filed: February 16, 2007
    Date of Patent: June 28, 2011
    Assignee: Clean Energy Fuels Corp.
    Inventors: Denis Ding, Mitchell Pratt
  • Publication number: 20110101024
    Abstract: The present invention provides a modular natural gas compressor system or compressing natural gas so that it can be used to refuel motor vehicles. This system permits easy assembly and disassembly of compressor stations, as each individual compressor unit is shaped so that it will fit on a base structure. Specifically, the modular system is comprised of a prefabricated, mass produced base skid having at least one allowed space of standardized dimensions and at least one natural gas compressor unit, the base of which is shaped to fit in a allowed space of the base skid. Additional compressed natural gas compressor units or booster units, the bases of which are also shaped to fit in the allowed spaces of the base skid, may be added to increase the efficiency or functionality of the system. Liquefied natural gas dispenser units may also be designed to have bases that fit in the allowed spaces of the base skid, and can be added to the base skid to create a CNG compressor/LNG dispenser hybrid system.
    Type: Application
    Filed: November 3, 2010
    Publication date: May 5, 2011
    Inventors: Denis Ding, Mitchell Pratt
  • Publication number: 20090071565
    Abstract: The present invention provides a modular natural gas compressor system for compressing natural gas so that it can be used to refuel motor vehicles. This system permits easy assembly and disassembly of compressor stations, as each individual compressor unit is shaped so that it will fit on a base structure. Specifically, the modular system is comprised of a prefabricated, mass produced base skid having at least one allowed space of standardized dimensions and at least one natural gas compressor unit, the base of which is shaped to fit in a allowed space of the base skid. Additional compressed natural gas compressor units or booster units, the bases of which are also shaped to fit in the allowed spaces of the base skid, may be added to increase the efficiency or functionality of the system. Liquefied natural gas dispenser units may also be designed to have bases that fit in the allowed spaces of the base skid, and can be added to the base skid to create a CNG compressor/LNG dispenser hybrid system.
    Type: Application
    Filed: September 12, 2008
    Publication date: March 19, 2009
    Inventor: Denis Ding
  • Publication number: 20080196384
    Abstract: The present invention provides a natural gas compression system, comprising a gas inlet component for the entrance of natural gas into the system, a booster component for increasing the pressure of the natural gas, a drying component for drying the natural gas, a compressor component including a reciprocating compressor for further increasing the pressure of the natural gas, a valve control panel and storage component, and a dispensing component.
    Type: Application
    Filed: February 16, 2007
    Publication date: August 21, 2008
    Inventor: Denis Ding