Patents by Inventor Lifeng Wang

Lifeng Wang 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: 10677865
    Abstract: The present disclosure relates to a magnetic resonance imaging device and shimming methods on the magnetic resonance imaging device. The magnetic resonance imaging device includes a main magnet, gradient coils, a vacuum enclosure, and a shimming conduit. The vacuum enclosure is configured to house at least part of the shimming conduit. The vacuum enclosure and at least part of the shimming conduit defines a hermetically sealed space configured to house the gradient coils. The shimming conduit has at least one opening configured to allow for access to an interior of the shimming conduit. The interior of the shimming conduit is hermetically insulated from the hermetically sealed space.
    Type: Grant
    Filed: June 26, 2018
    Date of Patent: June 9, 2020
    Assignee: SHANGHAI UNITED IMAGING HEALTHCARE CO., LTD.
    Inventors: Xingen Yu, Yong Liu, Shuguang Liu, Jiwen Yang, Tao Wang, Baogang Peng, Man Fan, Lifeng Wang
  • Publication number: 20200100436
    Abstract: The present invention provides a compressed air artificial wind system including compressed air storage device, compressed air discharge device, artificial wind system base and controller; also a firefighting equipment including an extinguishing agent tank and the compressed air artificial wind system. The compressed air storage device includes row tubes and manifolds for production and storage of high/ultra-high pressure compressed air; the compressed air discharge device includes intake pipe, expansion chamber, Laval nozzle and wind-blowing tube; the artificial wind system base is built as an infrastructure. Large quantity of high/ultra-high pressure compressed air under control from the compressed air storage device and through the compressed air discharge device to spray out generating artificial wind with large air volume and high wind speed for meteorological control, forest firefighting, air defence and coastal defence, respectively.
    Type: Application
    Filed: January 23, 2018
    Publication date: April 2, 2020
    Inventor: Lifeng WANG
  • Publication number: 20200088146
    Abstract: A fuel injector includes an injector body, and a plunger movable within a plunger cavity in the injector body. The fuel injector also includes a spill valve positioned at least partially within a main fuel passage, a fill passage forming a fluid connection between the plunger cavity and the main fuel passage, and a cross passage forming a second fluid connection between the plunger cavity and the main fuel passage. The fuel injector also includes a metering edge within the plunger cavity and positioned such that the plunger passes the metering edge during pumping to the plunger for valvetrain noise suppression. A metering slot may be formed in the injector body or the plunger.
    Type: Application
    Filed: September 18, 2018
    Publication date: March 19, 2020
    Applicant: Caterpillar Inc.
    Inventors: Wade Robel, Thomas Jeffrey Crowell, Lifeng Wang
  • Publication number: 20200061594
    Abstract: A microporous crystalline material having a molar silica to alumina ratio (SAR) ranging from 10 to 15 and a fraction of Al in the zeolite framework of 0.63 or greater is disclosed. A method of selective catalytic reduction of nitrogen oxides in exhaust gas that comprises contacting exhaust gases, typically in the presence of ammonia, urea, an ammonia generating compound, or a hydrocarbon compound, with an article comprising the disclosed microporous crystalline is also disclosed. Further, a method of making the disclosed microporous crystalline material is disclosed.
    Type: Application
    Filed: April 30, 2019
    Publication date: February 27, 2020
    Applicant: PQ CORPORATION
    Inventors: Hong-Xin LI, Anton PETUSHKOV, Lifeng WANG, Bjorn MODEN
  • Patent number: 10570863
    Abstract: A fuel injector includes an injector body, and a plunger movable within a plunger cavity in the injector body. The fuel injector also includes a spill valve positioned at least partially within a main fuel passage, a fill passage forming a fluid connection between the plunger cavity and the main fuel passage, and a cross passage forming a second fluid connection between the plunger cavity and the main fuel passage. The fuel injector also includes a metering edge within the plunger cavity and positioned such that the plunger passes the metering edge during pumping to the plunger for valvetrain noise suppression. A metering slot may be formed in the injector body or the plunger.
    Type: Grant
    Filed: September 18, 2018
    Date of Patent: February 25, 2020
    Assignee: Caterpillar Inc.
    Inventors: Wade Robel, Thomas Jeffrey Crowell, Lifeng Wang
  • Patent number: 10544769
    Abstract: A fuel system is disclosed for use with an engine, including a fuel injector assembly fluidly coupled with a low-pressure fuel conduit, an accumulator, and a cap within an opening in the accumulator. The fuel injector assembly may be structured to draw in low-pressure fuel, pressurize the fuel, and store the pressurized fuel in the accumulator for injection to a combustion chamber. The cap has a pressure sensor and a pressure relief valve therein, and drains fuel leaked past fluid seals between the cap and each of the pressure sensor, the pressure relief valve, and the accumulator by way of a common drain line.
    Type: Grant
    Filed: October 6, 2017
    Date of Patent: January 28, 2020
    Assignee: Caterpillar Inc.
    Inventors: Aaron M. Brown, Cory A. Brown, Sridhar Thangaswamy, Alan R. Stockner, Victor I. Yacoub, Zhenyu Li, Lifeng Wang, Satya Naga Deepak Pillarisetti, Scott Shafer, Robert Michael Campion, George Kodikulam Joseph
  • Publication number: 20190358616
    Abstract: The invention provides an exhaust gas cleaning oxidation catalyst and in particular to an oxidation catalyst for cleaning the exhaust gas discharged from internal combustion engines of compression ignition type (particularly diesel engines). The invention further relates to a catalysed substrate monolith comprising an oxidising catalyst on a substrate monolith for use in treating exhaust gas emitted from a lean-burn internal combustion engine. In particular, the invention relates to a catalysed substrate monolith comprising a first washcoat coating and a second washcoat coating, wherein the second washcoat coating is disposed in a layer above the first washcoat coating.
    Type: Application
    Filed: August 6, 2019
    Publication date: November 28, 2019
    Inventors: Philip Gerald BLAKEMAN, Gavin Michael BROWN, Sougato CHATTERJEE, Andrew Francis CHIFFEY, Jane GAST, Paul Richard PHILLIPS, Hanako OYAMADA, Raj Rao RAJARAM, Satoshi SUMIYA, Andrew Peter WALKER, Lifeng WANG
  • Publication number: 20190353125
    Abstract: A fuel system for an internal combustion engine includes a fuel system, a valve train, and a fuel injector including a cam actuated plunger. The fuel injector has a noise suppressor fluidly connecting a plunger cavity to each of a spill passage and a nozzle supply passage in the fuel injector. The noise suppressor has an inlet configuration forming a fuel admission flow area to the plunger cavity, and an outlet configuration forming a fuel discharge flow area. The fuel discharge flow area is smaller than the fuel admission flow area, and the noise suppressor adjusts to the outlet configuration to throttle discharging of fuel from the plunger cavity to limit valve train noise.
    Type: Application
    Filed: May 21, 2018
    Publication date: November 21, 2019
    Applicant: Caterpillar Inc.
    Inventors: Wade James Robel, Thomas Jeffrey Crowell, Lifeng Wang
  • Patent number: 10441373
    Abstract: A master-slave same structure teleoperation fracture reduction mechanism includes a frame assembly, two parallel platform assemblies, a top platform connecting plate (9), an operating handle assembly, two fixing assemblies, a controller (15), six movement assemblies and 24 hydraulic pipes (26). The operating handle assembly is located in the middle of the upper platform (5), and the two fixing assemblies are located on the top of the parallel platform assembly. The two parallel platform assemblies are disposed on the frame assembly; the controller (15) and the six movement assemblies are disposed on the frame assembly; A top platform connecting plate (9) is connected to the fixing assembly parallel platform assembly. The hydraulic pipes (26) is in communication with motion hydraulic cylinders (7a) and the other end of the hydraulic pipes is in communication with one of platform hydraulic cylinders (7b). The invention assists a doctor to achieve fracture reduction.
    Type: Grant
    Filed: September 19, 2014
    Date of Patent: October 15, 2019
    Assignees: BEIHANG UNIVERSITY, THE GENERAL HOSPITAL OF THE PEOPLE'S LIBERATION ARMY
    Inventors: Lei Hu, Peifu Tang, Tianmiao Wang, Lihai Zhang, Changsheng Li, Hailong Du, Lifeng Wang, Yiming Tan, Lu Zhao
  • Patent number: 10376867
    Abstract: The invention provides an exhaust gas cleaning oxidation catalyst and in particular to an oxidation catalyst for cleaning the exhaust gas discharged from internal combustion engines of compression ignition type (particularly diesel engines). The invention further relates to a catalyzed substrate monolith comprising an oxidizing catalyst on a substrate monolith for use in treating exhaust gas emitted from a lean-burn internal combustion engine. In particular, the invention relates to a catalyzed substrate monolith comprising a first washcoat coating and a second washcoat coating, wherein the second washcoat coating is disposed in a layer above the first washcoat coating.
    Type: Grant
    Filed: December 15, 2017
    Date of Patent: August 13, 2019
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Philip Gerald Blakeman, Gavin Michael Brown, Sougato Chatterjee, Andrew Francis Chiffey, Jane Gast, Paul Richard Phillips, Hanako Oyamada, Raj Rao Rajaram, Satoshi Sumiya, Andrew Peter Walker, Lifeng Wang
  • Publication number: 20190186448
    Abstract: A fuel injector is disclosed. The fuel injector may have an injector body having a fuel inlet and at least one orifice. The fuel injector may also have a first check valve member. The first check valve member may be selectively movable to fluidly block a first flow of fuel from the fuel inlet to the at least one orifice. The fuel injector may have a second check valve member. The second check valve member may be selectively movable to fluidly block a second flow of fuel from the fuel inlet to the at least one orifice. The fuel injector may also have a control valve assembly. The control valve assembly may be configured to selectively operate either the first check valve or both the first check valve and the second check valve to fluidly connect the fuel inlet and the at least one orifice.
    Type: Application
    Filed: December 19, 2017
    Publication date: June 20, 2019
    Applicant: CATERPILLAR INC.
    Inventors: Sana MAHMOOD, Robert M. CAMPION, Lifeng WANG
  • Patent number: 10289695
    Abstract: Disclosed are systems and methods for improving interactions with and between computers in location-based search systems supported by or configured with personal computing devices, servers and/or platforms. The systems interact to identify and retrieve data within or across platforms, which can be used to improve the quality of data used in processing interactions between or within such systems. The disclosed systems and methods identify a first geographic location that has a corresponding location identifier. Based on the first identifier, a set of identifiers are identified, where the identifier set corresponds to adjacent locations to the first location. In some embodiments, the identifier set can correspond to locations that are directly and/or indirectly adjacent to the first location. A search is then performed respective to the set of identifiers, whereby based on a distance calculation respective to such search in line with the set of identifiers, a search result is determined.
    Type: Grant
    Filed: March 30, 2016
    Date of Patent: May 14, 2019
    Assignee: ALIBABA GROUP HOLDING LIMITED
    Inventor: Lifeng Wang
  • Publication number: 20190137582
    Abstract: The present disclosure relates to a magnetic resonance imaging device and shimming methods on the magnetic resonance imaging device. The magnetic resonance imaging device includes a main magnet, gradient coils, a vacuum enclosure, and a shimming conduit. The vacuum enclosure is configured to house at least part of the shimming conduit. The vacuum enclosure and at least part of the shimming conduit defines a hermetically sealed space configured to house the gradient coils. The shimming conduit has at least one opening configured to allow for access to an interior of the shimming conduit. The interior of the shimming conduit is hermetically insulated from the hermetically sealed space.
    Type: Application
    Filed: June 26, 2018
    Publication date: May 9, 2019
    Applicant: SHANGHAI UNITED IMAGING HEALTHCARE CO., LTD.
    Inventors: Xingen YU, Yong LIU, Shuguang LIU, Jiwen YANG, Tao WANG, Baogang PENG, Man FAN, Lifeng WANG
  • Patent number: 10252607
    Abstract: The present invention provides a system and method for economically using compressed air as automobile power source, comprising: a compressed air power device, which includes automobile air storage tubes (1) to store a sufficient amount of high-pressure compressed air and a cylinder-combined engine consisting of the first and second cylinders (9)(10), and which can make full use of the compressed air to produce driving power; a mechanism to produce, store and provide high-pressure compressed air, which includes a boiler-type high-pressure compressed air producing and storing device, abbreviated as boiler-type HCAPS device (4), to be able to use electricity during periods of low energy demand (off-peak) such as at night simultaneously recovering the by-produced heat for central heating, and pressurizing and inflating into the automobile air storage tubes (1) during daytimes; brake energy recovery and regeneration devices, which include a spring reserving-releasing device and/or a compressed air reserving-relea
    Type: Grant
    Filed: May 30, 2016
    Date of Patent: April 9, 2019
    Inventor: Lifeng Wang
  • Patent number: 10247122
    Abstract: An engine control system is structured for operating a turbocharged engine system and includes an electronic control unit. The electronic control unit is structured to switch the engine system from operation in a parasitically loaded mode where fuel pressurized by a fuel pump is dumped to a low pressure space, to operation in a second mode, where an engine load increase is detected. Turbocharger lag in the engine system is limited during increasing the engine load by way of exhaust energy produced in response to the parasitic loading. Related methodology is disclosed.
    Type: Grant
    Filed: January 10, 2018
    Date of Patent: April 2, 2019
    Assignee: Caterpillar Inc.
    Inventors: Dana R Coldren, Ryan Thomas Sunley, Jianhua Zhang, Lifeng Wang
  • Patent number: 10184436
    Abstract: A fluid injection system includes a fluid injector assembly; a fluid conditioning module having an outlet port that is fluidly coupled to an inlet port of the fluid injector assembly; an injector assembly outlet conduit fluidly coupled to an outlet port of the fluid injector assembly and disposed downstream of the fluid injector assembly, the injector assembly outlet conduit defining a pressure measurement port and a flow-restricting orifice, the pressure measurement port being disposed upstream of the flow-restricting orifice along the direction of fluid flow through the fluid injector assembly; a pressure sensor fluidly coupled to the pressure measurement port; and a controller operatively coupled to the fluid conditioning module and the pressure sensor. The controller is configured to adjust a flowrate of a fluid through the injector assembly inlet conduit based on a pressure signal from the pressure sensor.
    Type: Grant
    Filed: July 17, 2015
    Date of Patent: January 22, 2019
    Assignee: Caterpillar Inc.
    Inventors: Scott F. Shafer, Martin Lehman, Lifeng Wang, David E. Hackett, Taylor Tang, Andrew Marrack, Dennis H. Gibson
  • Publication number: 20180229228
    Abstract: A method of coating a filter substrate comprising a plurality of channels and an apparatus therefor. The method comprises the steps of: (a) introducing a pre-determined amount of a liquid into a containment means at an upper end of the filter substrate; and (b) coating the channels having open ends at the upper end of the filter substrate with the liquid from the containment means.
    Type: Application
    Filed: March 24, 2015
    Publication date: August 16, 2018
    Inventors: Kaneshalingham ARULRAJ, Jenita BHANTOO, Jamie SAVAGE, Andrew SMITH, Lifeng WANG, Daisuke YOKOTA
  • Publication number: 20180186228
    Abstract: The present invention provides a system and method for economically using compressed air as automobile power source, comprising: a compressed air power device, which includes automobile air storage tubes (1) to store a sufficient amount of high-pressure compressed air and a cylinder-combined engine consisting of the first and second cylinders (9)(10), and which can make full use of the compressed air to produce driving power; a mechanism to produce, store and provide high-pressure compressed air, which includes a boiler-type high-pressure compressed air producing and storing device, abbreviated as boiler-type HCAPS device (4), to be able to use electricity during periods of low energy demand (off-peak) such as at night simultaneously recovering the by-produced heat for central heating, and pressurizing and inflating into the automobile air storage tubes (1) during daytimes; brake energy recovery and regeneration devices, which include a spring reserving-releasing device and/or a compressed air reserving-relea
    Type: Application
    Filed: May 30, 2016
    Publication date: July 5, 2018
    Inventor: Lifeng WANG
  • Publication number: 20180104677
    Abstract: The invention provides an exhaust gas cleaning oxidation catalyst and in particular to an oxidation catalyst for cleaning the exhaust gas discharged from internal combustion engines of compression ignition type (particularly diesel engines). The invention further relates to a catalysed substrate monolith comprising an oxidising catalyst on a substrate monolith for use in treating exhaust gas emitted from a lean-burn internal combustion engine. In particular, the invention relates to a catalysed substrate monolith comprising a first washcoat coating and a second washcoat coating, wherein the second washcoat coating is disposed in a layer above the first washcoat coating.
    Type: Application
    Filed: December 15, 2017
    Publication date: April 19, 2018
    Inventors: Philip Gerald BLAKEMAN, Gavin Michael BROWN, Sougato CHATTERJEE, Andrew Francis CHIFFEY, Jane GAST, Paul Richard PHILLIPS, Hanako OYAMADA, Raj Rao RAJARAM, Satoshi SUMIYA, Andrew Peter WALKER, Lifeng WANG
  • Publication number: 20180100475
    Abstract: A fuel system is disclosed for use with an engine. The fuel system may have a common rail, a first type of fuel injector fluidly connected to the common rail, and a second type of fuel injector fluidly connected to the common rail. The second type of fuel injector may include a pumping portion having a bore formed therein, and a plunger reciprocatingly disposed in the bore. The second type of fuel injector may also include an accumulator portion fluidly connected to the common rail and configured to receive fuel pushed from the bore of the pumping portion by the plunger, a nozzle portion, and a valve portion fluidly connecting the pumping, nozzle, and accumulator portions.
    Type: Application
    Filed: October 7, 2016
    Publication date: April 12, 2018
    Applicant: Caterpillar Inc.
    Inventors: Scott F. SHAFER, Dennis H. GIBSON, Zhenyu (Jason) LI, Robert Michael CAMPION, Alan Ray STOCKNER, Satya Naga Deepak PILLARISETTI, George Kodikulam JOSEPH, Lifeng WANG