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公开(公告)号：US11624345B2
公开(公告)日：2023-04-11
申请号：US17690765
申请日：2022-03-09
摘要： In a recoil starter that starts an engine, the recoil starter rotating a drive shaft of the engine using rotation force of a reel through a recoil rope wound around the reel, by the recoil rope being pulled, a ratchet claw is provided on the reel, the ratchet claw pivoting in a radial direction of the reel with rotation of the reel by the recoil rope and then engaging with a pulley provided on the drive shaft, a guide member is provided around a reel shaft, the guide member covering the ratchet claw, the reel shaft being a rotation shaft of the reel, and a rib is provided on the guide member, the rib abutting on the ratchet claw.
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公开(公告)号：US20220299000A1
公开(公告)日：2022-09-22
申请号：US17639067
申请日：2020-09-04
IPC分类号： F02N3/02
摘要： A recoil starter includes: a starter case provided with a reel support shaft; and a ratchet guide rotatably attached to the reel support shaft in a state in which a frictional resistance is applied. The ratchet guide includes: a through hole into which the reel support shaft is insertable; and a locking portion configured to be engaged with the reel support shaft on an inner periphery of the through hole. A movement of the ratchet guide in an axial direction of the reel support shaft is restricted in a state in which the locking portion is engaged with the reel support shaft.
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公开(公告)号：US11448146B2
公开(公告)日：2022-09-20
申请号：US16681418
申请日：2019-11-12
摘要： A method for starting an internal combustion engine (ICE) having a crankshaft and an electric turning machine (ETM) operatively connected to the crankshaft comprises energizing an absolute position sensor adapted for providing an indication of an angular position of a rotor of the ETM and applying a current to the ETM to generate a sufficient torque to rotate the crankshaft.
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公开(公告)号：US11333120B2
公开(公告)日：2022-05-17
申请号：US17096205
申请日：2020-11-12
摘要： An electric turning machine (ETM) operatively connected to an internal combustion engine (ICE) is operated as a motor with a first control strategy and as a generator with a second control strategy. In the first control strategy, electric power is delivered from a power source to the ETM selectively through at least one transistor of an electrical converter. After switching from the first control strategy to the second control strategy, the ETM delivers electric power to an accessory selectively through the at least one transistor of the electrical converter.
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公开(公告)号：US20210146524A1
公开(公告)日：2021-05-20
申请号：US16683933
申请日：2019-11-14
摘要： A starter handle gripping device includes a hand grip having a width that is suitable for receiving a human hand, a pair of elongated arms that extend from both ends of the handle and a coupler for engaging the starter handle. The hand grip, arms and coupler include a one-piece construction, and the arms are diagonal in relation to the handle. The coupler includes a pair of generally U-shaped fingers that are integrally formed onto the ends of the two elongated arms, and a cross member for maintaining a separation distance between the ends of the arms. The second end of each of the arms includes a separation distance that is complementary to a width of a cord cavity of the starter handle, and each of the fingers includes a width that is complementary to a thickness of the upper portion of the starter handle.
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公开(公告)号：US10941745B2
公开(公告)日：2021-03-09
申请号：US15743104
申请日：2016-07-21
申请人： WALBRO LLC
摘要： In at least some implementations, an auxiliary power supply in an ignition system for a light-duty combustion engine includes a first auxiliary winding and a second auxiliary winding coupled in parallel with the first auxiliary winding such that both windings are arranged to provide power to an auxiliary load. The first auxiliary winding may include a greater number of turns than the second auxiliary winding. A ratio of the number of turns in the first auxiliary winding to the number of turns in the second auxiliary winding may be between 1.5:1 and 10:1, the first auxiliary coil and the second auxiliary coil may have between 50 and 2,000 turns, and the first auxiliary coil and the second auxiliary coil are formed from wire between 25 and 45 gauge.
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公开(公告)号：US10859052B2
公开(公告)日：2020-12-08
申请号：US16253372
申请日：2019-01-22
摘要： A method for operating an electric turning machine (ETM) operatively connected to an internal combustion engine (ICE) are disclosed. An engine control unit (ECU) controls the ETM to operate as a motor with a first control strategy and as a generator with a second control strategy. The second control strategy is distinct from the first control strategy. The ECU controls switching the operation of the ETM from the first control strategy to the second control strategy when a sensor senses that a rotational speed of the ICE is equal to or above a minimum revolution threshold.
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公开(公告)号：US10774804B2
公开(公告)日：2020-09-15
申请号：US16532034
申请日：2019-08-05
摘要： A method is for the safe starting of a combustion engine in a handheld, portable work apparatus. When starting, start rpm limiting is activated when the rotational speed of the combustion engine exceeds an activation rotational speed that lies above the coupling rotational speed of a centrifugal coupling. After activating the start rpm limiting for at least one working cycle, an intervention in the ignition is carried out such that the rotational speed of the combustion engine decreases. After the rotational speed has decreased below a lower engagement rotational speed, an intervention in the ignition is carried out such that the rotational speed increases. If the rotational speed exceeds an upper engagement rotational speed, an intervention in the ignition is again carried out such that the rotational speed decreases. The upper engagement rotational speed and/or the lower engagement rotational speed is/are changed with an increasing number of consecutive working cycles.
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公开(公告)号：US10753362B2
公开(公告)日：2020-08-25
申请号：US15040391
申请日：2016-02-10
发明人： Takuo Kase , Yuki Takahashi
IPC分类号： F04D17/16 , F02N15/00 , F04D25/16 , F04D25/08 , F02N3/02 , F01P1/06 , H02K9/06 , F02N11/04 , F01P5/04 , F02B63/04
摘要： An engine-driven generator includes an engine having a crankshaft, a generator unit having a drive shaft connected to the crankshaft, a cooling fan connected to the drive shaft, and a recoil starter engageable with the cooling fan. The cooling fan includes a starting pulley engageable with the recoil starter, a centrifugal fan formed on a circumferential outer side of the pulley, and a mixed flow fan formed on a circumferential inner side of the pulley. The pulley, the centrifugal fan, the mixed flow fan are molded integrally with one another.
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10.发明授权公开(公告)号：US10648429B2
公开(公告)日：2020-05-12
申请号：US15681502
申请日：2017-08-21
申请人： HUSQVARNA AB
发明人： Mikael Larsson , Magnus Ottosson , Bo Carlsson
摘要： The invention concerns a method for controlling the fuel supply to an internal combustion engine at start-up. The fuel supply system can be set in at least two start modes, a lean mode and a rich mode, and the selection of mode is based on an evaluation of a previous start attempt or successful run. The invention also concerns a carburetor (10) having a fuel supply system including a main fuel path (13) with an actively controlled fuel valve (26) and an idling fuel path (14) branching off from the main fuel path (13) downstream of the valve (26). The fuel supply system further includes a start fuel line (23, 423) starting upstream (FIG. 1) or downstream (FIG. 4) of the fuel valve (26) and ending in at least one start fuel outlet near and downstream of a choke valve.
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