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公开(公告)号：US11233378B2
公开(公告)日：2022-01-25
申请号：US16766434
申请日：2018-11-30
Applicant: Walbro LLC
Inventor： Cyrus M. Healy , Eric L. King
Abstract: In at least some implementations, a coupler for a spark plug includes a body formed from an electrically conductive material and including a first connecting portion defining a first cavity, and a second connecting portion defining a second cavity spaced from the first cavity, and the body includes an intermediate portion physically and electrically coupling the first connection portion and the second connecting portion. In at least some implementations, the first connecting portion is formed from a wire coiled to define the first cavity within the coil. In at least some implementations, the second connecting portion is formed from a wire coiled to define the second cavity within the coil.
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公开(公告)号：US11085407B2
公开(公告)日：2021-08-10
申请号：US16329928
申请日：2017-09-01
Applicant: Walbro LLC
Inventor： Eric D. Anderson , Travis P. Baur , Elton J. Fisch , Cyrus M. Healy , Kevin L. Israelson , Gerald J. LaMarr, Jr. , Robby L. Linton , Edward J. Talaski
Abstract: In at least some implementations, a fuel supply module includes a reservoir and a fuel pump carried by the reservoir. The reservoir may include a body and a lid that define an internal volume to contain a supply of fuel, and the reservoir may include an inlet through which fuel enters the internal volume and an outlet from which fuel is discharged from the fuel supply module. The fuel pump is carried by the reservoir and has a first inlet communicating with the internal volume to take fuel into the fuel pump from the internal volume and a second inlet spaced above the first inlet relative to the direction of the force of gravity to take fluid or vapors into the fuel pump from the internal volume. The fuel pump includes an outlet from which fluid is discharged for delivery to an engine through the reservoir outlet.
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公开(公告)号：US10907537B2
公开(公告)日：2021-02-02
申请号：US16495910
申请日：2018-03-19
Applicant: Walbro LLC
Inventor： Martin N. Andersson , Cyrus M. Healy , Robby L. Linton
Abstract: In at least some implementations, an ignition system for a combustion engine includes analog circuit components arranged to control ignition events at an engine speed below a first threshold of engine speed and a microprocessor to control ignition events at engine speeds higher than the first threshold. Hence, ignition can be controlled at lower engine cranking speeds to facilitate starting the engine at lower engine rotational speeds.
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公开(公告)号：US10358996B2
公开(公告)日：2019-07-23
申请号：US15520578
申请日：2016-09-30
Applicant: WALBRO LLC
Inventor： Martin N. Andersson , Mark S. Swanson , Takashi Abei , Cyrus M. Healy
Abstract: A method and apparatus controlling the fuel-to-air ratio of a fuel and air mixture supplied to an operating engine includes the steps of determining a first engine speed before enleanment of the mixture, determining a second engine speed near or at the end of a period of enleanment of the mixture, and after ending the enleanment, determining whether the engine speed recovers within a predetermined range of the first engine speed and if so determining a delta speed difference between the first and second speeds and using this delta speed difference as a factor in determining a change in the fuel-to-air ratio of the fuel mixture supplied to the engine.
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公开(公告)号：US11562855B2
公开(公告)日：2023-01-24
申请号：US16605024
申请日：2018-04-20
Applicant: Walbro LLC
Inventor： Martin N. Andersson , Cyrus M. Healy , Gerald J. LaMarr, Jr.
IPC: H01F38/12 , H01F27/245 , H01F27/26
Abstract: In at least some implementations, a lamination stack includes a plurality of plates coupled together, each plate including at least one leg that collectively define a leg of the stack, with the leg of the stack arranged so that a wire coil may be arranged on the leg of the stack, and wherein the leg of the stack includes a location feature arranged to facilitate location of the stack relative to an adjacent component. In at least some implementations, the location feature may be integrally formed with at least one of the plates, and may be defined by a projection extending from a free end of at least one leg of the stack.
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Patent Agency Ranking
公开(公告)号：US20190293046A1
公开(公告)日：2019-09-26
申请号：US16316756
申请日：2017-07-12
Applicant: Walbro LLC
Inventor： Martin N. Andersson , Matthew A. Braun , Cyrus M. Healy , Shunya Nakamura , Tsuyoshi Watanabe
Abstract: In at least some implementations, a method of maintaining an engine speed below a first threshold, includes: (a) determining an engine speed; (b) comparing the engine speed to a second threshold that is less than the first threshold; (c) allowing an engine ignition event to occur during a subsequent engine cycle if the engine speed is less than the second threshold; and (d) skipping at least one subsequent engine ignition event if the engine speed is greater than the second threshold. In at least some implementations, the second threshold is less than the first threshold by a maximum acceleration of the engine after one ignition event so that an ignition event when the engine speed is less than the second threshold does not cause the engine speed to increase above the first threshold.
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公开(公告)号：US20190257280A1
公开(公告)日：2019-08-22
申请号：US16342838
申请日：2017-10-19
Applicant: Walbro LLC
Inventor： Martin N. Andersson , Cyrus M. Healy
Abstract: —In at least some implementations, a control and communication system for a light-duty combustion engine includes a circuit card, an ignition circuit carried by the circuit card and configured to control an ignition timing of the engine, and a short range wireless communication circuit carried by the circuit card. The communication circuit may include a Bluetooth Low Energy antenna. The ignition circuit may include an ignition capacitor that when drained induces an ignition pulse adapted to fire a spark plug. The system may further include a microprocessor that is coupled to and controls the ignition and communication circuits, and/or a clocking circuit adapted to provide a clocking frequency associated with the timing of the ignition circuit and associated with the communication circuit via a short range wireless communication protocol. The clocking circuit may include a crystal oscillator.
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公开(公告)号：US20170314490A1
公开(公告)日：2017-11-02
申请号：US15520578
申请日：2016-09-30
Applicant: WALBRO LLC
Inventor： Martin N. Andersson , Mark S. Swanson , Takashi Abei , Cyrus M. Healy
CPC classification number: F02D41/1454 , F02D31/002 , F02D31/007 , F02D31/008 , F02D37/02 , F02D41/26 , F02D2200/101 , F02P5/045 , F02P5/1508 , Y02T10/46
Abstract: A method and apparatus controlling the fuel-to-air ratio of a fuel and air mixture supplied to an operating engine includes the steps of determining a first engine speed before enleanment of the mixture, determining a second engine speed near or at the end of a period of enleanment of the mixture, and after ending the enleanment, determining whether the engine speed recovers within a predetermined range of the first engine speed and if so determining a delta speed difference between the first and second speeds and using this delta speed difference as a factor in determining a change in the fuel-to-air ratio of the fuel mixture supplied to the engine.
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公开(公告)号：US11378053B2
公开(公告)日：2022-07-05
申请号：US17270976
申请日：2019-09-06
Applicant: Walbro LLC
Inventor： Martin N. Andersson , Cyrus M. Healy
Abstract: In at least some implementations, a method of operating an ignition system for a combustion engine includes charging an energy storage device during at least a portion of the time when the engine is operating, permitting the level of energy stored on the charge storage device to decrease over time after the engine ceases to operate, determining the energy level on the energy storage device when the engine is restarted after having ceased operating, and setting at least one engine operational parameter as a function of the determined energy level. In at least some implementations, the at least one engine operational parameter may include one or more of: richness of a fuel and air mixture to be delivered to the engine, ignition timing, desired engine idle speed.
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公开(公告)号：US11274618B2
公开(公告)日：2022-03-15
申请号：US16763092
申请日：2018-11-27
Applicant: Walbro LLC
Inventor： Martin N. Andersson , Cyrus M. Healy , Dale P. Kus
Abstract: In at least some implementations, a method of controlling a fuel-to-air ratio of a fuel and air mixture supplied to an engine, includes the steps of determining an engine deceleration event, determining the number of engine revolutions required for the engine speed to decrease from one speed threshold to another speed threshold, comparing the number of engine revolutions determined above against a revolution threshold, and making the fuel and air mixture richer if the number of engine revolutions determined above is greater than the revolution threshold. The method may also include determining if, before the engine stabilized at a stable engine speed (which may be an engine idle speed), the engine speed decreased below the stable engine speed as the engine decelerated to the stable engine speed from a speed above the stable engine speed, and making the fuel and air mixture leaner if the determination is affirmative.
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