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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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公开(公告)号：US20220099060A1
公开(公告)日：2022-03-31
申请号：US17546773
申请日：2021-12-09
Applicant: Walbro LLC
Inventor： Takashi Abei , Katsuaki Hamataka , Takashi Horikawa , Tomoya Kawada , Dairoku Suzuki , Jun Takano
Abstract: In at least some implementations, a fuel metering valve, includes a bobbin defining a passage and having one or more voids in the surface of the bobbin that defines the passage, aa wire coil around the bobbin and an armature. The armature is received within the passage in the bobbin and movable relative to the bobbin from a first position to a second position when electricity is supplied to the wire coil.
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公开(公告)号：US20210088002A1
公开(公告)日：2021-03-25
申请号：US16634276
申请日：2018-07-27
Applicant: Walbro LLC
Inventor： Takashi Abei , Katsuaki Hamataka , Taketoshi Hirama , Takashi Horikawa , Tomoya Kawada , Nobuyuki Kuroki , Shunya Nakamura , Kazunori Tsubakino , Makoto Waku
Abstract: In at least some implementations, a charge forming system for a combustion engine includes a first fuel supply device having a first passage from which fuel is discharged for delivery to the engine and a second fuel supply device having a second passage from which fuel is discharged for delivery to the engine. The first passage communicates with the second passage so that the fuel in the first passage is combined with the fuel in the second passage.
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Patent Agency Ranking
公开(公告)号：US12000352B2
公开(公告)日：2024-06-04
申请号：US18035670
申请日：2022-01-18
Applicant: Walbro LLC
Inventor： Tatsuya Chiba , Katsuaki Hamataka , Tomoya Kawada , Naoya Kumagai , Yuki Tanaka , Kazunori Tsubakino , Makoto Waku
CPC classification number: F02D9/02 , F02D9/10 , F02M7/12 , F02D2009/0201
Abstract: In at least some implementations, a charge forming device includes a main body having a throttle bore, a throttle valve, a housing and a circuit board including a throttle position sensor and a pressure sensor. The throttle valve is received at least partially within the valve bore, is rotatable between an idle position and a second position, and includes a magnet that is rotated when the throttle valve rotates. The housing is carried by the main body, and the circuit board is carried by the housing. A signal path is defined leading from the pressure sensor to a pressure source, the signal path includes a liquid collection area located below a gaseous area with respect to gravity.
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公开(公告)号：US20230407799A1
公开(公告)日：2023-12-21
申请号：US18035670
申请日：2022-01-18
Applicant: Walbro LLC
Inventor： Tatsuya Chiba , Katsuaki Hamataka , Tomoya Kawada , Naoya Kumagai , Yuki Tanaka , Kazunori Tsubakino , Makoto Waku
CPC classification number: F02D9/02 , F02D9/10 , F02M7/12 , F02D2009/0201
Abstract: In at least some implementations, a charge forming device includes a main body having a throttle bore, a throttle valve, a housing and a circuit board including a throttle position sensor and a pressure sensor. The throttle valve is received at least partially within the valve bore, is rotatable between an idle position and a second position, and includes a magnet that is rotated when the throttle valve rotates. The housing is carried by the main body, and the circuit board is carried by the housing. A signal path is defined leading from the pressure sensor to a pressure source, the signal path includes a liquid collection area located below a gaseous area with respect to gravity.
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公开(公告)号：US11578688B2
公开(公告)日：2023-02-14
申请号：US17546773
申请日：2021-12-09
Applicant: Walbro LLC
Inventor： Takashi Abei , Katsuaki Hamataka , Takashi Horikawa , Tomoya Kawada , Dairoku Suzuki , Jun Takano
Abstract: In at least some implementations, a fuel metering valve, includes a bobbin defining a passage and having one or more voids in the surface of the bobbin that defines the passage, aa wire coil around the bobbin and an armature. The armature is received within the passage in the bobbin and movable relative to the bobbin from a first position to a second position when electricity is supplied to the wire coil.
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公开(公告)号：US11231002B2
公开(公告)日：2022-01-25
申请号：US16621911
申请日：2018-06-15
Applicant: Walbro LLC
Inventor： Takashi Abei , Katsuaki Hamataka , Takashi Horikawa , Tomoya Kawada , Dairoku Suzuki , Jun Takano
Abstract: In at least some implementations, a charge forming device for a combustion engine includes a throttle body and a throttle valve. The throttle body has a throttle bore with an inlet through which air flows into the throttle bore and an outlet from which a fuel and air mixture exits the throttle bore. The throttle bore has a throat between the inlet and outlet and the throat has a reduced flow area compared to at least one of the inlet and outlet. The throttle valve has a valve head received within the throat of the throttle bore and movable relative to the throttle body between a first position and a second position wherein the flow area between the valve head and the throttle body is greater when the valve head is in the second position than in the first position.
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公开(公告)号：US11131273B2
公开(公告)日：2021-09-28
申请号：US16634276
申请日：2018-07-27
Applicant: Walbro LLC
Inventor： Takashi Abei , Katsuaki Hamataka , Taketoshi Hirama , Takashi Horikawa , Tomoya Kawada , Nobuyuki Kuroki , Shunya Nakamura , Kazunori Tsubakino , Makoto Waku
Abstract: In at least some implementations, a charge forming system for a combustion engine includes a first fuel supply device having a first passage from which fuel is discharged for delivery to the engine and a second fuel supply device having a second passage from which fuel is discharged for delivery to the engine. The first passage communicates with the second passage so that the fuel in the first passage is combined with the fuel in the second passage.
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