Patents Assigned to K&N Engineering, Inc.
  • Publication number: 20240139674
    Abstract: An apparatus and a method are provided for a heating, ventilation, and air conditioning (HVAC) system air filter for a building ventilation system. The HVAC system air filter comprises a supportive frame configured to orient the HVAC system air filter within the building ventilation system. A composite filter medium retained within the supportive frame comprises a cotton gauze portion and an electrostatic portion. The cotton gauze portion is configured for treatment with a filter oil composition to enhance airflow and filtration of air flowing through the composite filter medium. The electrostatic portion is configured to electrostatically attract and agglomerate airborne molecular contaminants and volatile organic compounds (VOCs) as small as 0.001 microns in diameter. In some embodiments, the composite filter medium comprises substances configured to release a fragrance into air passing through the composite filter medium.
    Type: Application
    Filed: January 9, 2024
    Publication date: May 2, 2024
    Applicant: K&N ENGINEERING, INC.
    Inventors: Steve R. Williams, Jere James Wall
  • Patent number: 11960309
    Abstract: An apparatus and methods are provided for a portable mass airflow (MAF) training module configured to simulate an air intake into an internal combustion engine. An in-line blower draws an airflow through an air filter by way of a first air duct and a second air duct. A throttle assembly is coupled between the first air duct and the second air duct. The throttle assembly includes a throttle plate that may be rotated to regulate the airflow. The power output of the in-line blower is variable to simulate the air intake of various sizes of the internal combustion engine. A MAF sensor and a duct velocity sensor are configured to provide airflow information. The portable MAF training module enables a practitioner to select a desired throttle setting and observe a resultant mass airflow through the portable MAF training module that is measured by the MAF sensor.
    Type: Grant
    Filed: October 5, 2021
    Date of Patent: April 16, 2024
    Assignee: K&N Engineering, Inc.
    Inventors: Mac McClanahan, Steve Williams, Joel Valles
  • Patent number: 11946440
    Abstract: An apparatus and method are provided for a fuel bowl to supply liquid fuel to a carburetor. The fuel bowl comprises a float chamber and a fuel inlet cavity which receives a fuel delivery insert. The fuel delivery insert receives a fuel inlet valve and comprises passages to direct incoming fuel to a bottom portion of the float chamber. A float comprises an elongate member rotatably hinged within a float cavity of the fuel delivery insert, such that the float rises according to a quantity of fuel within the float chamber. The fuel inlet valve supplies liquid fuel to the float chamber by way of the passages according to the operation of the float within the float chamber. A ventilation chamber allows air and fuel vapors to exit as liquid fuel enters the float chamber while preventing liquid fuel from entering into the carburetor.
    Type: Grant
    Filed: January 11, 2022
    Date of Patent: April 2, 2024
    Assignee: K&N Engineering, Inc.
    Inventor: John Kyle
  • Publication number: 20240082773
    Abstract: An apparatus and method are provided for a cone air filter for a closed intake system of an internal combustion engine. The cone air filter is comprised of a cone-shaped filter medium, retained between a base and a cap, that is fabricated to remove contaminants and particulate matter from an intake airstream. The base is comprised of a flange that couples with an air intake duct of the internal combustion engine. A shell receiver is incorporated into the base and receives a rigid exterior shell, such that the exterior shell surrounds the cone air filter and directs the intake airstream therein. A cap is disposed on an apex portion of the cone air filter and is configured to direct the intake airstream around the apex portion and into the cone-shaped filter medium.
    Type: Application
    Filed: November 20, 2023
    Publication date: March 14, 2024
    Applicant: K&N Engineering, Inc.
    Inventors: Steve Williams, Jere James Wall
  • Patent number: 11927158
    Abstract: An apparatus and methods are provided for an air cleaner to be mounted onto an air inlet of an internal combustion engine. The air cleaner comprises an air filter that includes a filter medium disposed between a curved base and a cover. The curved base provides an interface between the air filter and the air inlet, and comprises a shape that provides clearance between the curved base and an electric choke installed onto a carburetor comprising the air inlet. The cover secures the air filter and the curved base to the air inlet such that an airstream is drawn through the filter medium and is conducted into the air inlet. A raised portion of the cover is configured to cooperate with the curved base to ensure a desired volume of the airstream is available to the air inlet at substantially all engine speeds.
    Type: Grant
    Filed: February 27, 2023
    Date of Patent: March 12, 2024
    Assignee: K&N Engineering, Inc.
    Inventors: Steve E. Williams, Jere James Wall
  • Publication number: 20240060463
    Abstract: An apparatus and a method are provided for an air intake assembly configured for use with Pro Stock vehicles comprising fuel injection equipped engines. The air intake assembly comprises an air inlet that includes a distal opening disposed in a forward direction at a front of the vehicle and configured to direct incident air into the air intake assembly. An air duct is joined with the air inlet by way of a first coupler configured to maintain an airtight seal between the air inlet and the air duct. A throttle body adapter is joined with the air duct by way of a second coupler configured to maintain an airtight seal therebetween. The throttle body adapter is configured to establish an airtight coupling between the air intake assembly and a throttle body of the engine, such that the incident air is directed into the throttle body.
    Type: Application
    Filed: October 30, 2023
    Publication date: February 22, 2024
    Applicant: K&N Engineering, Inc.
    Inventor: Steve Williams
  • Patent number: 11872511
    Abstract: An apparatus and method are provided for a flangeless air filter configured to be mounted onto a flat surface within an air intake system of an internal combustion engine. The flangeless air filter is comprised of a cone-shaped filter medium, retained between a base and a cap, that is fabricated to remove contaminants and particulate matter from an intake airstream. The base includes a pliable seal that forms an airtight connection between the flangeless air filter and the flat surface of the air intake system. A mounting bracket and fasteners may be used to attach the base to the flat surface, compressing the seal there between. In some embodiments, the mounting bracket may be incorporated into, and made a part of the base. A cap is disposed on a top of the flangeless air filter and configured to direct the intake airstream around the cap and toward the filter medium.
    Type: Grant
    Filed: October 17, 2022
    Date of Patent: January 16, 2024
    Assignee: K&N Engineering, Inc.
    Inventors: Jere James Wall, Steve Williams
  • Patent number: 11865484
    Abstract: An apparatus and a method are provided for a heating, ventilation, and air conditioning (HVAC) home air filter to remove airborne molecular contaminants and volatile organic compounds (VOCs) from air within residential spaces. The HVAC home air filter includes a supportive frame having a shape and size suitable to orient the HVAC home air filter within a residential HVAC system. A filter medium is retained within the supportive frame to remove the airborne molecular contaminants and VOCs from air flowing through the residential HVAC system. The filter medium includes a combination of media layers configured to exhibit a relatively high filtration efficiency and a low air pressure drop across the filter medium. The supportive frame includes a plurality of elongate sections and corner sections disposed along perimeter edges of the filter medium to support the filter medium within the residential HVAC system so as direct air through the filter medium.
    Type: Grant
    Filed: February 7, 2022
    Date of Patent: January 9, 2024
    Assignee: K&N Engineering, Inc.
    Inventors: Steve Williams, Jere James Wall
  • Publication number: 20230417200
    Abstract: A throttle-controlled intake system is disclosed that provides a driver of a vehicle with greater control over engine functions and vehicle performance. The throttle-controlled intake system includes a control module that is coupled with an aircharger air intake. The control module processes input signals from a throttle pedal of the vehicle and sends modified throttle position signals to a throttle body of the vehicle so as to increase throttle responsiveness of the vehicle. The throttle-controlled intake system further includes a wiring harness and a signal adjuster. The wiring harness electrically couples the control module with the throttle pedal and the throttle body. The control module sends signals directly to the throttle body of the engine, bypassing an electronic control unit of the vehicle. The signal adjuster includes a rheostat that enables manual adjustment of the throttle responsiveness of the vehicle.
    Type: Application
    Filed: September 7, 2023
    Publication date: December 28, 2023
    Applicant: K&N Engineering, Inc.
    Inventors: Jonathan Richard Fiello, Gilbert Heck, Steve Williams
  • Publication number: 20230415084
    Abstract: An air filter oil composition is provided for enhancing airflow and filtration of air passing through an air filter. The composition includes a first portion comprising paraffinic oil, a second portion comprising polyalphaolefin (PAO), and a third portion comprising black dye. Applying the air filter oil composition to a cotton air filter material causes tackiness throughout the air filter material, thereby enhancing airflow and filtration of air passing through the air filter. The composition generally is substantially non-reactive, has an excellent oxidation stability, possesses good thermal stability, and retains a suitable viscosity at normal operating temperatures of an automobile engine. In an embodiment, the composition comprises 96.74% paraffinic oil by volume, 3.20% PAO by volume, and 0.06% black dye by volume. A viscosity of the composition at 100 degrees-C. ranges between substantially 7.2 and 7.6 centistokes (cSTs).
    Type: Application
    Filed: September 12, 2023
    Publication date: December 28, 2023
    Applicant: K&N Engineering, Inc.
    Inventor: Steve Williams
  • Publication number: 20230398485
    Abstract: A hydrocarbon absorbing air filter box is provided for absorbing evaporative hydrocarbon emissions from an air intake duct of an internal combustion engine. A combined mass airflow sensor and hydrocarbon trap comprising the hydrocarbon absorbing air filter box includes a duct supporting a hydrocarbon absorbing sheet within an interior of a housing. The duct communicates an airstream from an air filter to the air intake duct during operation of the internal combustion engine. An opening in the housing receives a mass airflow sensor into the duct, such that the mass airflow sensor is disposed within the airstream. Guide vanes extending across the duct reduce air turbulence within the airstream passing by the mass airflow sensor. Ports disposed along the duct allow the evaporative hydrocarbon emissions to be drawn into the interior and arrested by the hydrocarbon absorbing sheet when the internal combustion engine is not operating.
    Type: Application
    Filed: August 23, 2023
    Publication date: December 14, 2023
    Applicant: K&N Engineering, Inc.
    Inventor: Steve Williams
  • Patent number: 11826687
    Abstract: An apparatus and method are provided for a cone air filter for a closed intake system of an internal combustion engine. The cone air filter is comprised of a cone-shaped filter medium, retained between a base and a cap, that is fabricated to remove contaminants and particulate matter from an intake airstream. The base is comprised of a flange that couples with an air intake duct of the internal combustion engine. A shell receiver is incorporated into the base and receives a rigid exterior shell, such that the exterior shell surrounds the cone air filter and directs the intake airstream therein. A cap is disposed on an apex portion of the cone air filter and is configured to direct the intake airstream around the apex portion and into the cone-shaped filter medium.
    Type: Grant
    Filed: November 19, 2021
    Date of Patent: November 28, 2023
    Assignee: K&N Engineering, Inc.
    Inventors: Steve Williams, Jere James Wall
  • Publication number: 20230364543
    Abstract: An apparatus and methods are provided for an air filter precleaner for an open air filter box. The air filter precleaner includes a filter medium between a base and a grating that are fastened over an opening into an interior of the air filter box. The filter medium comprises a sheet of filter material having a shape and a size suitable for being supported between the base and the grating. The base is a rigid member that supports the filter medium in a sheet configuration, such that the airstream passes through the filter medium before entering the air filter box. The grating is a rigid member comprising a screen portion surrounded by a frame that is configured to be fastened onto the air filter box. The screen portion comprises a shaped lattice that allows the airstream to pass through the filter medium before entering the air filter box.
    Type: Application
    Filed: July 27, 2023
    Publication date: November 16, 2023
    Applicant: K&N Engineering, Inc.
    Inventors: Gilbert Heck, Steve Williams
  • Publication number: 20230366368
    Abstract: A filter oil composition and a method for removing airborne molecular contaminants from air are provided. The composition includes a first portion comprising paraffinic oil by volume of the composition, a second portion comprising polyalphaolefin by volume of the composition, and a third portion comprising red dye by volume of the composition. Applying the filter oil composition to a cotton air filter material causes tackiness throughout the air filter material, thereby enhancing filtration of air passing through the filter. The composition generally is substantially non-reactive, has excellent oxidation stability, possesses good thermal stability, and retains a suitable viscosity at a normal operating temperature of an automobile engine. In an embodiment, the composition comprises 96.74% paraffinic oil by volume, 3.20% polyalphaolefin by volume, and 0.06% red dye by volume. The viscosity of the composition at 100 degrees-C ranges between substantially 7.2 and 7.6 centistokes (cSTs).
    Type: Application
    Filed: July 25, 2023
    Publication date: November 16, 2023
    Applicant: K&N Engineering, Inc.
    Inventors: Steve Williams, Jere James Wall, Rick Daniels
  • Publication number: 20230366367
    Abstract: An apparatus and a method are provided for an aircharger air intake system for filtering and conducting an airstream to an air intake of an engine. The aircharger air intake system includes an air filter comprising a filter medium configured to entrap particulates flowing within the airstream. An air box comprising one or more sidewalls and a mount wall is configured to support the air filter within an engine bay. The air box is configured to be mounted, or fastened, onto the engine. An intake tube is coupled with the air filter and configured to conduct the airstream to the air intake of the engine. The intake tube is configured to be coupled with an air temperature sensor or a mass air sensor of the engine. An adapter is configured to couple the intake tube with the air intake.
    Type: Application
    Filed: July 27, 2023
    Publication date: November 16, 2023
    Applicant: K&N Engineering, Inc.
    Inventor: Steve Williams
  • Patent number: 11808241
    Abstract: An apparatus and a method are provided for an aircharger air intake system for filtering and conducting an airstream to an air intake of an engine. The aircharger air intake system includes an air filter comprising a filter medium configured to entrap particulates flowing within the airstream. An air box comprising one or more sidewalls and a mount wall is configured to support the air filter within an engine bay. The air box is configured to be mounted, or fastened, onto the engine. An intake tube is coupled with the air filter and configured to conduct the airstream to the air intake of the engine. The intake tube is configured to be coupled with an air temperature sensor or a mass air sensor of the engine. An adapter is configured to couple the intake tube with the air intake.
    Type: Grant
    Filed: May 27, 2022
    Date of Patent: November 7, 2023
    Assignee: K&N Engineering, Inc.
    Inventor: Steve Williams
  • Patent number: 11773794
    Abstract: A throttle-controlled intake system is disclosed that provides a driver of a vehicle with greater control over engine functions and vehicle performance. The throttle-controlled intake system includes a control module that is coupled with an aircharger air intake. The control module processes input signals from a throttle pedal of the vehicle and sends modified throttle position signals to a throttle body of the vehicle so as to increase throttle responsiveness of the vehicle. The throttle-controlled intake system further includes a wiring harness and a signal adjuster. The wiring harness electrically couples the control module with the throttle pedal and the throttle body. The control module sends signals directly to the throttle body of the engine, bypassing an electronic control unit of the vehicle. The signal adjuster includes a rheostat that enables manual adjustment of the throttle responsiveness of the vehicle.
    Type: Grant
    Filed: November 17, 2021
    Date of Patent: October 3, 2023
    Assignee: K&N Engineering, Inc.
    Inventors: Jonathan Richard Fiello, Gilbert Heck, Steve Williams
  • Publication number: 20230304425
    Abstract: An apparatus and method are provided for a drone elimination muffler to attenuate drone exhibited by engine exhaust systems. The drone elimination muffler comprises a hollow canister having a length and a diameter, and a tuned port comprising a first end connected to the canister and a second end connected to the exhaust system. The canister operates in concert with the tuned port as a dampener configured to substantially attenuate exhaust drone, or resonance, at one or more frequencies of engine operation. A valve is configured to switch the drone elimination muffler between a closed state in which the exhaust system operates without acoustic influence due to the drone elimination muffler, and an open state in which the drone elimination muffler directly influences the acoustic properties of the exhaust system.
    Type: Application
    Filed: May 12, 2023
    Publication date: September 28, 2023
    Applicant: K&N Engineering, Inc.
    Inventors: Steve Williams, Kevin McCelland
  • Patent number: D999170
    Type: Grant
    Filed: June 28, 2019
    Date of Patent: September 19, 2023
    Assignee: K&N Engineering, Inc.
    Inventors: Jonathan Richard Fiello, Steve Williams
  • Patent number: D1018827
    Type: Grant
    Filed: February 24, 2020
    Date of Patent: March 19, 2024
    Assignee: K&N Engineering, Inc.
    Inventors: Gilbert Heck, Steve Williams