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公开(公告)号：US12078121B2
公开(公告)日：2024-09-03
申请号：US18242455
申请日：2023-09-05
Applicant: Walbro LLC
Inventor： Takashi Abei , Tatsuya Chiba , Mark S. Swanson
CPC classification number: F02D41/34 , F02D41/1475 , F02D41/2422 , F02D2200/021 , F02D2200/0404 , F02D2200/0406 , F02D2200/0602 , F02D2200/101
Abstract: In at least some implementations, a method of controlling fuel injection events, includes determining at least one engine operating condition, determining timing of a desired pressure in an engine intake chamber or at the outlet of a fuel injector, and initiating a fuel injection event as a function of the at least one engine operating condition and the desired pressure. The fuel injection event is initiated prior to the desired pressure occurring and wherein the fuel injection event occurs for a duration such that the fuel injection event terminates after the desired pressure occurs.
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公开(公告)号：US20170306863A1
公开(公告)日：2017-10-26
申请号：US15520645
申请日：2015-11-06
Applicant: WALBRO LLC
Inventor： Martin N. Andersson , Mark S. Swanson
CPC classification number: F02D41/1454 , F02D31/002 , F02D31/007 , F02D31/008 , F02D37/02 , F02D41/26 , F02D2200/101 , F02P5/045 , F02P5/1508 , Y02T10/46
Abstract: In at least some implementations, a method of controlling engine idle speed includes comparing engine speed to a speed threshold where the speed threshold may include a range of speeds, if the engine speed is outside of the speed threshold, adjusting the timing of an ignition spark up to a threshold amount of ignition timing adjustment, and if the engine speed is not within said speed threshold after adjustment up to the threshold amount of ignition timing adjustment then adjusting the air/fuel mixture provided to the engine to bring the engine speed within said speed threshold.
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公开(公告)号：US20230015191A1
公开(公告)日：2023-01-19
申请号：US17780724
申请日：2020-12-02
Applicant: Walbro LLC
Inventor： Takashi Abei , Tatsuya Chiba , Mark S. Swanson
Abstract: In at least some implementations, a method of control-ling fuel injection events, includes determining at least one engine op-erating condition, determining timing of a desired pressure in an engine intake chamber or at the outlet of a fuel injector, and initiating a fuel injection event as a function of the at least one engine operating condition and the desired pressure. The fuel injection event is initiated prior to the desired pressure occurring and wherein the fuel injection event occurs for a duration such that the fuel injection event terminates after the desired pressure occurs.
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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：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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Patent Agency Ranking
公开(公告)号：US09765724B2
公开(公告)日：2017-09-19
申请号：US15151892
申请日：2016-05-11
Applicant: Walbro LLC
Inventor： Massimo Casoni , William E. Galka , Bradley J. Roche , David L. Speirs , Mark S. Swanson , Eric G. Zbytowski
IPC: F02D41/32 , F02D41/14 , F02M35/10 , F02D41/06 , F02D41/30 , F02D31/00 , F02M35/16 , F02D9/10 , F02M69/50
CPC classification number: F02D41/32 , F02D9/1035 , F02D31/003 , F02D41/062 , F02D41/1454 , F02D41/3082 , F02D2200/101 , F02M35/10216 , F02M35/162 , F02M69/50 , Y10T29/49233
Abstract: An engine system may include a fuel and air supply circuit and an exhaust circuit, a temperature sensor mounted on an exterior of the engine and an oxygen sensor located in the exhaust circuit. The fuel and air supply circuit may include a throttle body mounted on the engine and having a throttle valve to control the flow rate of air delivered to the engine, a fuel injector carried by the throttle body to deliver fuel to the engine and a fuel rail carried by at least one of the throttle body and the fuel injector and having an input to receive a supply of fuel and an outlet through which fuel is routed to the fuel injector. An engine control unit may be communicated with these components to control the fuel and air mixture provided to the engine as a function of the temperature and oxygen sensor outputs.
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公开(公告)号：US20160252039A1
公开(公告)日：2016-09-01
申请号：US15151892
申请日：2016-05-11
Applicant: Walbro LLC
Inventor： Massimo Casoni , William E. Galka , Bradley J. Roche , David L. Speirs , Mark S. Swanson , Eric G. Zbytowski
IPC: F02D41/32 , F02D9/10 , F02D41/06 , F02M69/50 , F02D41/30 , F02M35/10 , F02M35/16 , F02D31/00 , F02D41/14
CPC classification number: F02D41/32 , F02D9/1035 , F02D31/003 , F02D41/062 , F02D41/1454 , F02D41/3082 , F02D2200/101 , F02M35/10216 , F02M35/162 , F02M69/50 , Y10T29/49233
Abstract: An engine system may include a fuel and air supply circuit and an exhaust circuit, a temperature sensor mounted on an exterior of the engine and an oxygen sensor located in the exhaust circuit. The fuel and air supply circuit may include a throttle body mounted on the engine and having a throttle valve to control the flow rate of air delivered to the engine, a fuel injector carried by the throttle body to deliver fuel to the engine and a fuel rail carried by at least one of the throttle body and the fuel injector and having an input to receive a supply of fuel and an outlet through which fuel is routed to the fuel injector. An engine control unit may be communicated with these components to control the fuel and air mixture provided to the engine as a function of the temperature and oxygen sensor outputs.
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公开(公告)号：US11773803B2
公开(公告)日：2023-10-03
申请号：US17780724
申请日：2020-12-02
Applicant: Walbro LLC
Inventor： Takashi Abei , Tatsuya Chiba , Mark S. Swanson
CPC classification number: F02D41/34 , F02D41/1475 , F02D41/2422 , F02D2200/021 , F02D2200/0404 , F02D2200/0406 , F02D2200/0602 , F02D2200/101
Abstract: In at least some implementations, a method of controlling fuel injection events, includes determining at least one engine operating condition, determining timing of a desired pressure in an engine intake chamber or at the outlet of a fuel injector, and initiating a fuel injection event as a function of the at least one engine operating condition and the desired pressure. The fuel injection event is initiated prior to the desired pressure occurring and wherein the fuel injection event occurs for a duration such that the fuel injection event terminates after the desired pressure occurs.
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公开(公告)号：US20220412337A1
公开(公告)日：2022-12-29
申请号：US17898968
申请日：2022-08-30
Applicant: Walbro LLC
Inventor： Nobuyuki Kuroki , Katsuaki Hamataka , Mark S. Swanson , Tetsuya Takahashi , Teruhiko Tobinai
Abstract: In at least some implementations, a method of forming a diaphragm for a liquid pump, includes clamping a substantially planar piece of material about a periphery, and plastically deforming the piece of material inboard of the clamped periphery. In at least some implementations, the material is plastically deformed by pressing a forming member against the material, or the material is plastically deformed by applying a fluid under pressure against the material.
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公开(公告)号：US20190162177A1
公开(公告)日：2019-05-30
申请号：US16322247
申请日：2017-08-01
Applicant: Walbro LLC
Inventor： Nobuyuki Kuroki , Katsuaki Hamataka , Mark S. Swanson , Tetsuya Takahashi , Teruhiko Tobinai
Abstract: In at least some implementations, a diaphragm for a fluid pump includes a first layer formed from a first material that inhibits or prevents vapor permeation through the diaphragm, and a second layer coupled to the first layer and formed from a second material different than the first material. The first material may include at least one of fluoropolymers, perfluoroalkoxy (PFA), polyfluoroethylenepropylene (FEP), polytetrafluoroethylene (PTFE), liquid crystal polymers, nylons, thin metal foil or film, or ethylene vinyl alcohol, and the fluoropolymer may be a fluoroelastomer. The first layer may be continuous and without perforations in an area of the diaphragm adapted to be exposed to a fluid. The first layer may include a base material and a coating that prevents vapor permeation therethrough. The second material may include at least one of NBR rubber, H-NBR, NBR coated or impregnated fiber or nylon materials, or a fluoroelastomer.
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