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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：US20220415568A1
公开(公告)日：2022-12-29
申请号：US17848705
申请日：2022-06-24
Applicant: Walbro LLC
Inventor： Shunya Nakamura , Yuki Tanaka , Kazunori Tsubakino
Abstract: An ignition device includes a case having an opening and a bottom wall, a coil bobbin arranged in the case having a through hole, a first end and a second end, an ignition coil wound around the coil bobbin, a core made of magnetic material and projecting from the opening and from the bottom wall, and extending through the coil bobbin, a retainer having a ring portion and multiple leg portions extending from the ring, and a filling resin in the case. The core extends through the ring portion and the leg portions extend in between an inner surface of the coil bobbin and an outer peripheral surface of the core toward the bottom wall, and the case is filled with the filling resin in a manner that at least a part of the ring portion is not covered by the resin.
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公开(公告)号：US20210010449A1
公开(公告)日：2021-01-14
申请号：US16977236
申请日：2019-03-14
Applicant: Walbro LLC
Inventor： Takashi Abei , Shunya Nakamura , Dairoku Suzuki , Jun Takano , Yuki Tanaka , Kazunori Tsubakino , Makoto Waku
Abstract: In at least some implementations, a method of controlling spark events in an engine includes determining for at least two engine revolutions in a four-stroke engine at least one characteristic of the primary coil voltage for a spark event, determining, based upon the characteristic of the primary coil voltage, which of the spark events is associated with a compression phase and which of the spark events is associated with an exhaust phase of engine operation, and providing spark events in subsequent engine revolutions that are associated with the compression phase of engine operation but not in revolutions associated with the exhaust phase of engine operation. In at least some implementations, the characteristic is the duration of the spark event as determined by changes in the primary coil voltage, and the characteristic may be that the duration that the primary coil voltage is above a threshold voltage.
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公开(公告)号：US11373798B2
公开(公告)日：2022-06-28
申请号：US16612442
申请日：2018-05-11
Applicant: Walbro LLC
Inventor： Shunya Nakamura , Yuki Tanaka , Kazunori Tsubakino
IPC: H01F27/24 , H01F27/32 , F02P1/00 , F02P3/02 , H01F27/02 , H01F27/28 , H01F38/12 , F02P1/02 , H01F27/26
Abstract: An ignition device includes a case having an opening and a bottom wall, a coil bobbin arranged in the case having a through hole, a first end and a second end, an ignition coil wound around the coil bobbin, a core made of magnetic material and projecting from the opening and from the bottom wall, and extending through the coil bobbin, a retainer having a ring portion and multiple leg portions extending from the ring, and a filling resin in the case. The core extends through the ring portion and the leg portions extend in between an inner surface of the coil bobbin and an outer peripheral surface of the core toward the bottom wall, and the case is filled with the filling resin in a manner that at least a part of the ring portion is not covered by the resin.
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