Patents Assigned to Coavis
  • Patent number: 9021871
    Abstract: Provided is a fuel amount detection device for a vehicle positioned in a fuel tank of the vehicle to detect a remaining fuel amount. In the fuel amount detection device for a vehicle, a resistor pattern and a conductive pattern formed on a resistor substrate and spaced apart from each other are electrically connected to each other by a conductive material coated on a conductive film pressed by a contactor to prevent abrasion of the resistor pattern formed on the resistor substrate, thereby making it possible to improve durability. In addition, since the resistor pattern is sealed by the conductive film, it does not contact fuel, such that corrosion of the resistor pattern is prevented, thereby making it possible to accurately detect a fuel amount.
    Type: Grant
    Filed: November 22, 2013
    Date of Patent: May 5, 2015
    Assignee: Coavis
    Inventors: KyungHwan Kim, Jeongsik Kim
  • Patent number: 8979475
    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: Grant
    Filed: April 3, 2012
    Date of Patent: March 17, 2015
    Assignee: Coavis
    Inventor: Hyuntae Lee
  • Patent number: 8919326
    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: Grant
    Filed: January 10, 2011
    Date of Patent: December 30, 2014
    Assignee: Coavis
    Inventors: Jong Keun Lim, In Seok Sohn, Ohk Sung Kim, Joon Seup Kim
  • Patent number: 8820350
    Abstract: Provided is a fuel pump module in which a portion of fuel transmitted from a fuel pump provided in a reservoir or fuel returned from an engine is supplied to a first jet and a second jet and a portion of the fuel is supplied from a first jet tower to a second jet tower through a connection tube connecting the first jet tower and the second jet tower to each other when the returned fuel passes through the first jet and the second jet and is then jetted to each of the first jet tower and the second jet tower to fill an inner portion of the second jet tower with the fuel, such that the fuel in a second space part of a fuel tank is rapidly transmitted, thereby making it possible to stably supply the fuel to the engine.
    Type: Grant
    Filed: July 5, 2012
    Date of Patent: September 2, 2014
    Assignee: Coavis
    Inventors: Joonseup Kim, Wookeun Lee
  • Patent number: 8789515
    Abstract: Provided is a reservoir for a fuel tank not including a pump and capable of allowing fuel to be smoothly transferred by effectively blocking a solidification material when solidification occurs in the fuel in a low temperature environment.
    Type: Grant
    Filed: December 26, 2011
    Date of Patent: July 29, 2014
    Assignee: Coavis
    Inventors: Kusung Kwon, Chanheum Yoon
  • Patent number: 8672651
    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: Grant
    Filed: February 16, 2011
    Date of Patent: March 18, 2014
    Assignee: Coavis
    Inventors: Wan-Sung Pae, Hyung-Min Kim, Kyeong-Hwan Kim, Inseok Sohn
  • Patent number: 8663738
    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: Grant
    Filed: February 9, 2011
    Date of Patent: March 4, 2014
    Assignee: Coavis
    Inventors: Kisang Moon, Seonghwan Moon
  • Patent number: 8656588
    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: Grant
    Filed: February 16, 2011
    Date of Patent: February 25, 2014
    Assignee: Coavis
    Inventors: Ha Young Cho, Jae Won Choi, Jin Seok Kim
  • Patent number: 8561595
    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: Grant
    Filed: December 14, 2010
    Date of Patent: October 22, 2013
    Assignee: Coavis
    Inventors: Se Dong Baek, Kyoung Hwan Kim, Wan Sung Pae
  • Patent number: 8561597
    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: Grant
    Filed: January 11, 2011
    Date of Patent: October 22, 2013
    Assignee: Coavis
    Inventors: Jong Keun Lim, In Seok Sohn, Young Chang Kim, Joon Seup Kim, Mun Sik Jeon, Jin Seok Kim
  • Patent number: 8511339
    Abstract: A fuel pressure controller used in a fuel supply device of an automobile has an open-close ball insertion groove formed to be protruding from a side of a valve pressing member. The valve pressing member has a predetermined open 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, such that pressure may be accurately controlled and noise may be reduced.
    Type: Grant
    Filed: June 24, 2011
    Date of Patent: August 20, 2013
    Assignee: Coavis
    Inventors: KyungHwan Kim, Se-Dong Baek, DongHeon Mo, Jeongsik Kim
  • Patent number: 8291946
    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: Grant
    Filed: August 17, 2011
    Date of Patent: October 23, 2012
    Assignee: Coavis
    Inventors: JongKeun Lim, Youngchang Kim, Inseok Sohn, Kyuseob Shin, Joonseup Kim, Munsik Jeon
  • 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