Patents Assigned to Coavis
  • Publication number: 20120257956
    Abstract: Provided is a turbine fuel pump for a vehicle. More particularly, provided is a turbine fuel pump for a vehicle that can improve efficiency of the fuel pump and solve pressure instability caused by collision of fuel by forming a separate independent channel in a lower casing, an impeller, and an upper casing where channels of fuel are formed at the time of suctioning fuel from the fuel tank and supplying fuel to an engine of an internal combustion engine.
    Type: Application
    Filed: April 3, 2012
    Publication date: October 11, 2012
    Applicant: COAVIS
    Inventor: Hyuntae LEE
  • Publication number: 20120168006
    Abstract: Provided is a reservoir for a fuel tank capable of being easily maintained by effectively preventing foreign materials in fuel from being introduced into a pump of a fuel transferring pipe.
    Type: Application
    Filed: December 27, 2011
    Publication date: July 5, 2012
    Applicant: COAVIS
    Inventors: Moon SUHWAN, Chanheum YOON
  • Publication number: 20120100016
    Abstract: Provided is a fuel pump module for a vehicle in which a fuel pump, which is a vibration body, is physically coupled to an intank filter, a primary filter, and the like, which are other components of the fuel pump module, to have increased mass, such that unique harmonic acceleration of the fuel pump is reduced, a unique vibration area of the fuel pump or the fuel pump module is changed, and harmonic vibration of the fuel pump is thus positioned at the unique vibration area of the fuel pump or the fuel pump module, thereby making it possible to remove noise generated in a fuel tank due to abnormal vibration of the fuel pump module.
    Type: Application
    Filed: October 24, 2011
    Publication date: April 26, 2012
    Applicant: COAVIS
    Inventors: Mun-sik JEON, Chan-heum YOON, Hoi-hyun KIM, Hyoung-il KIM, Seung-min LIM
  • Publication number: 20120060974
    Abstract: Provided is an apparatus for sensing a fuel level in a fuel tank for sensing an amount of fuel remaining in the fuel tank mounted in a vehicle. The apparatus for sensing a fuel level according to the present invention senses a residual amount of fuel in a fuel tank by contacting a resistance substrate with a wiper, the apparatus including: a case that forms a sealable filling solution filling space and has a filling solution inlet formed on a top thereof; a stopper that blocks the filling solution inlet formed in the case to seal the filling solution filling space; and a filling solution that is filled in the filling solution filling space to perform an anti-rusting and lubricating function, wherein the resistance substrate and the wiper are disposed in the filling solution filling space.
    Type: Application
    Filed: August 17, 2011
    Publication date: March 15, 2012
    Applicant: COAVIS
    Inventors: JongKeun LIM, Youngchang KIM, Inseok SOHN, Kyuseob SHIN, Joonseup KIM, Munsik JEON
  • Publication number: 20120000556
    Abstract: Provided is a driver-integrated type BLDC fuel pump module, which is used in a vehicle and in which a driver used for controlling the operation of a BLDC fuel pump is installed in a flange of the BLDC fuel pump module, thus removing the spatial limit caused when the driver is installed and reducing the length of an electric wire electrically connecting the driver to a BLDC fuel pump of the module, thereby solving the problem of the operational performance of the BLDC fuel pump deteriorating as a result of both the voltage drop in the electric wire and a reduction in the operational efficiency of the pump.
    Type: Application
    Filed: December 14, 2010
    Publication date: January 5, 2012
    Applicant: COAVIS
    Inventors: Se Dong Baek, Kyoung Hwan Kim, Wan Sung Pae
  • Publication number: 20110315242
    Abstract: Provided is a fuel pressure controller used in a fuel supply device of an automobile, and more particularly, is a fuel pressure controller in which an open-close ball insertion groove is formed to be protruded in one side direction within a valve pressing member formed to be opened by a predetermined area in a circumferential direction and in a radial direction to prevent separation of an open-close ball even at the time of an operation of a valve of the fuel pressure controller, such that pressure may be accurately controlled and noise may be reduced.
    Type: Application
    Filed: June 24, 2011
    Publication date: December 29, 2011
    Applicant: COAVIS
    Inventors: KyungHwan KIM, SE-DONG BAEK, DongHeon MO, Jeongsik KIM
  • Publication number: 20110314904
    Abstract: Provided is a fuel amount measuring device for a vehicle positioned in a fuel tank of the vehicle to thereby measure an amount of remaining fuel. The fuel amount measuring device is implemented as a mechanical fuel amount measuring device including a base body, a resistive substrate, a retainer, and a contactor contacting the resistive substrate, wherein the resistive substrate and the contactor include a conductive film positioned therebetween and coated with a conductive material, such that the contactor and the resistive substrate are connected to each other by the conductive film. With the fuel amount measuring device, abrasion of the resistive substrate is prevented, thereby making it possible to improve durability of the fuel amount measuring device.
    Type: Application
    Filed: June 22, 2011
    Publication date: December 29, 2011
    Applicant: COAVIS
    Inventors: KyungHwan KIM, Jeongsik Kim
  • Publication number: 20110250079
    Abstract: Provided is a dual jet system mounted at a bottom end of a reservoir in a fuel pump module, and more particularly, to a fuel pump module mounted with a dual jet system capable of preventing a phenomenon that fuel is not smoothly filled in a reservoir due to fuel inclined to one side caused by an inclination of a fuel tank when a vehicle travels a steep slope section by mounting two jet pumps at both edges of a bottom end of a reservoir.
    Type: Application
    Filed: April 11, 2011
    Publication date: October 13, 2011
    Applicant: COAVIS
    Inventors: KyungHwan Kim, Jeongsik Kim, Hoihyun Kim
  • Publication number: 20110233122
    Abstract: Provided is an in-tank filter, which is a component of a fuel pump module positioned in a fuel tank of a vehicle, etc., to supply fuel to an engine. The in-tank filter includes: a filter media filtering foreign materials; an upper container made of a synthetic resin material and having a filter media insertion space therein, the filter media insertion space having a filter media inserted thereinto; a lower container made of a synthetic resin material and coupled to the upper container to block a lower portion of the upper container; and a deformation prevention reinforcing ring having a container insertion hole formed therein so as to be closely adhered to an outer side of the upper container when the upper container is inserted thereinto and preventing the upper container inserted into the container insertion hole from expanding.
    Type: Application
    Filed: March 23, 2011
    Publication date: September 29, 2011
    Applicant: COAVIS
    Inventors: Youngchol Choi, Hayoung Cho, Jinsik Hwang, Chanheum Yoon, Jongman Lee, Younghoon Kim, Haisung Lee
  • Patent number: 8015871
    Abstract: The present invention relates to a sender unit for sensing the level of remaining fuel in a fuel tank utilizing a non-contacting sensor. The sender unit for sensing the level of remaining fuel in a fuel tank of a vehicle is fixed in the fuel tank to sense the level of the remaining fuel by detecting the position of a float that floats depending on the level of the liquid surface of the fuel.
    Type: Grant
    Filed: June 7, 2006
    Date of Patent: September 13, 2011
    Assignee: Coavis
    Inventors: In-Seok Sohn, Kyeong-Hwan Kim, Mun-Sik Jeon, Hyung-Min Kim
  • Publication number: 20110206543
    Abstract: Provided is a fuel pump module used for a car, and more particularly, to a fuel pump module with a driver equipped inside a fuel tank capable of solving a problem of space limitation due to the installation of the driver by disposing the driver for controlling a BLDC fuel pump between a flange and a reservoir and mounting it in the fuel tank, minimizing the degradation in performance of the BLDC fuel pump caused by voltage drop and efficiency degradation due to a wire by reducing a length of a wire for electrically connecting the driver with the BLDC fuel pump, and achieving a sufficient heat radiation effect by directly transferring the heat energy generated from electrical devices such as FET, MCU, or the like, mounted in the driver to the fuel in the fuel tank through the case cover.
    Type: Application
    Filed: February 16, 2011
    Publication date: August 25, 2011
    Applicant: COAVIS
    Inventors: Wan-Sung Pae, Hyung-Min Kim, Kyeong-Hwan Kim, Inseok Sohn
  • Publication number: 20110204625
    Abstract: Disclosed is a flange for a fuel pump module, which includes an adhesion enhancing member so that there is no gap between a power supply terminal and a resin material for forming a flange, thus further increasing injection efficiency and sealing performance. A method of manufacturing such a flange is also provided.
    Type: Application
    Filed: February 16, 2011
    Publication date: August 25, 2011
    Applicant: COAVIS
    Inventors: Ha Young Cho, Jae Won Choi, Jin Seok Kim
  • Publication number: 20110194958
    Abstract: Disclosed herein are an armature for fuel pumps and a manufacturing method thereof, in which a polymer coating film is formed on an armature core such that the armature has corrosion resistance to an alcohol fuel and to a highly corrosive fuel.
    Type: Application
    Filed: February 9, 2011
    Publication date: August 11, 2011
    Applicant: COAVIS
    Inventors: Ki Sang Moon, Seong Hwan Moon
  • Publication number: 20110174274
    Abstract: A fuel pump module including: a reservoir installed in a fuel tank, the reservoir being charged with a predetermined amount of fuel; a fuel pump installed in the reservoir and pumping the fuel contained in the reservoir to an internal combustion engine; a jet pump injecting a fuel jet into the reservoir to thereby introduce the fuel stored in the fuel tank into the reservoir; a guide tube installed on the jet pump and guiding both the fuel jet and the fuel introduced from the fuel tank along with the fuel jet into the reservoir; and a filter unit partitioning the interior of the reservoir into a fuel suction area, into which the fuel is introduced by the fuel pump, and a fuel charging area, which is charged with the fuel from the fuel tank, thus preventing foreign substances from being introduced from the fuel charging area into the fuel suction area.
    Type: Application
    Filed: January 14, 2011
    Publication date: July 21, 2011
    Applicant: COAVIS
    Inventors: JongKeun LIM, Inseok SOHN, Kyuseob SHIN, Joonseup KIM, Munsik JEON
  • Publication number: 20110174275
    Abstract: Provided is a fuel supply system. The fuel supply system includes a fuel pump module mounted in a fuel tank and including a reservoir having a predetermined amount of fuel filled therein and a fuel pump mounted in the reservoir to suck the fuel filled in the reservoir and supply it to an internal combustion engine; a fuel supply line supplying fuel from the fuel pump module to the internal combustion engine; and a fuel return line returning the fuel from the internal combustion engine to the fuel tank, wherein the inside of the reservoir is provided with a bypass tube connecting the fuel return line to the fuel pump to directly supply the fuel returned through the fuel return line to the fuel pump through the bypass tube.
    Type: Application
    Filed: January 14, 2011
    Publication date: July 21, 2011
    Applicant: COAVIS
    Inventors: JongKeun LIM, Inseok SOHN, Kyuseob SHIN, Joonseup KIM, Munsik JEON
  • Publication number: 20110168136
    Abstract: A flange for a fuel pump module and a manufacturing method thereof, in which the passage communicating a first valve seat with a second valve seat in the flange can be easily and simply formed by inserting a passage forming piece in a mold without requiring an additional process during an injection-molding process of manufacturing the flange.
    Type: Application
    Filed: January 11, 2011
    Publication date: July 14, 2011
    Applicant: COAVIS
    Inventors: Jong Keun Lim, In Seok Sohn, Young Chang Kim, Joon Seup Kim, Mun Sik Jeon, Jin Seok Kim
  • Publication number: 20110168134
    Abstract: A fuel pump module, in which an in-tank filter and a fuel pump are installed at respective locations and held by a pump retainer, thereby allowing fuel to easily flow in the fuel pump module and realizing smallness and improved filtering performance of the fuel pump module.
    Type: Application
    Filed: January 10, 2011
    Publication date: July 14, 2011
    Applicant: COAVIS
    Inventors: Jong Keun Lim, In Seok Sohn, Ohk Sung Kim, Joon Seup Kim