公开(公告)号：US20240287955A1

公开(公告)日：2024-08-29

申请号：US18660341

申请日：2024-05-10

申请人： Walbro LLC

发明人： Jeffrey C. Hoppe ,  Duried F. Rabban ,  Bradley J. Roche ,  David L. Speirs

IPC分类号： F02M69/04 ,  F02D9/10 ,  F02M35/10

CPC分类号： F02M69/044 ,  F02D9/105 ,  F02D9/1065 ,  F02D2200/0404 ,  F02M35/10216

摘要： In at least some implementations, a charge forming device includes a body that has a throttle bore, a throttle valve associated with the throttle bore, a coupler and an actuator. The throttle has a valve head received within and movable relative to the throttle bore, and a valve shaft to which the valve head is coupled. The coupler is connected to the valve shaft and carries or includes a sensor element. And the actuator has a drive shaft coupled to the coupler so that rotation of the drive shaft is transmitted to the coupler and the valve shaft.

公开(公告)号：US20240100549A1

公开(公告)日：2024-03-28

申请号：US18373820

申请日：2023-09-27

申请人： Walbro LLC

发明人： Bradley J. Roche ,  Eric G. Zbytowski ,  Cyrus M. Healy ,  Benjermen L. Hill ,  Elizabeth M. VanSipe

IPC分类号： B05B7/04 ,  B01F25/00 ,  B08B3/02 ,  B08B13/00

CPC分类号： B05B7/0408 ,  B01F25/1051 ,  B08B3/026 ,  B08B13/00 ,  B01F2101/4505 ,  B08B2203/0217

摘要： A mixing system for a power washer includes an electrically actuated valve communicated with a supply of a working fluid, and having a valve head that is movable between open and closed positions to control the flow rate of the working fluid through an outlet of the valve. The outlet of the valve is communicated with a fluid passage of the power washer to enable flow of the working fluid into a primary fluid and discharge of a mixture of the primary fluid and working fluid from the power washer when the valve is open, and to provide a flow of primary fluid from the power washer when the valve is closed.

公开(公告)号：US11927164B2

公开(公告)日：2024-03-12

申请号：US17988946

申请日：2022-11-17

申请人： Walbro LLC

发明人： Gary J. Burns ,  Andreas D. M. Dixon ,  Eric G. Zbytowski ,  Albert L Sayers ,  Justin T. Dolane ,  David L Speirs ,  William E. Galka ,  Duried F. Rabban ,  Bradley J. Roche

IPC分类号： F02M69/04 ,  F02D9/10 ,  F02M7/18 ,  F02M19/02 ,  F02M19/08 ,  F02M19/10 ,  F02M63/00

CPC分类号： F02M69/044 ,  F02D9/10 ,  F02M7/18 ,  F02M19/0207 ,  F02M19/08 ,  F02M19/10 ,  F02M63/0056

摘要： A throttle body assembly for a combustion engine includes a throttle body having a pressure chamber including a supply of liquid fuel, and a throttle bore with an inlet through which air is received. A throttle valve is carried by the throttle body with a valve head movable relative to the throttle bore. A metering valve is coupled to the throttle body, and has a valve element that is movable between open and closed positions. A boost venturi is located in the throttle bore and has an inner passage that is open at both ends to the throttle bore. The boost venturi has an opening through which fuel flows into the inner passage when the valve element is in the open position, wherein fuel flows from the pressure chamber to the metering valve under the force of gravity or under a pressure of less than 6 psi.

公开(公告)号：US11885430B2

公开(公告)日：2024-01-30

申请号：US17291447

申请日：2019-11-13

申请人： Walbro LLC

发明人： Bradley J. Roche ,  William E. Galka ,  David L. Speirs ,  Jeffrey C. Hoppe ,  Ernesto O. Basanez

IPC分类号： F16K31/06 ,  F16K27/02

CPC分类号： F16K31/0689 ,  F16K27/029 ,  F16K31/0655

摘要： In at least some implementations, a method of assembling an electromechanical valve includes positioning the armature stop in a first position at a first distance from a valve seat, actuating the valve to move an armature away from the valve seat, providing a fluid flow to the valve, determining a fluid flow characteristic, and as a function of the fluid flow characteristic, moving the armature stop relative to the valve seat to a second position that is at a distance other than the first distance.

公开(公告)号：US20230407809A1

公开(公告)日：2023-12-21

申请号：US18242455

申请日：2023-09-05

申请人： Walbro LLC

发明人： Takashi Abei ,  Tatsuya Chiba ,  Mark S. Swanson

IPC分类号： F02D41/34 ,  F02D41/14 ,  F02D41/24

CPC分类号： F02D41/34 ,  F02D41/1475 ,  F02D41/2422 ,  F02D2200/021 ,  F02D2200/0404 ,  F02D2200/0406 ,  F02D2200/0602 ,  F02D2200/101

摘要： 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.

公开(公告)号：US11644002B2

公开(公告)日：2023-05-09

申请号：US17700993

申请日：2022-03-22

申请人： Walbro LLC

发明人： Andreas D. Dixon ,  Justin T. Dolane ,  Sean M. Murphy ,  Duried F. Rabban ,  Bradley J. Roche ,  Elizabeth M. VanSipe

IPC分类号： B60K37/06 ,  F02N11/08 ,  F02N11/10 ,  B60K35/00 ,  B60N2/00 ,  B60W30/18 ,  F02D29/00 ,  F02D41/00 ,  F02D41/06 ,  G05B15/02 ,  F02D9/02 ,  F02D9/10 ,  F02D29/04

CPC分类号： F02N11/0807 ,  B60K35/00 ,  B60K37/06 ,  B60N2/002 ,  B60W30/18018 ,  F02D9/02 ,  F02D9/1065 ,  F02D29/00 ,  F02D29/04 ,  F02D41/0002 ,  F02D41/064 ,  F02N11/0803 ,  F02N11/0822 ,  F02N11/101 ,  G05B15/02 ,  B60K2370/152 ,  F02D2200/021 ,  F02D2200/101 ,  F02D2200/60 ,  F02D2200/602 ,  F02D2400/14 ,  F02N2200/08 ,  F02N2200/0803 ,  F02N2200/102 ,  F02N2200/106 ,  F02N2300/306

摘要： An assembly for an engine includes a control module including a controller operable to control at least certain aspects of the operation of the engine, a display including an input connected to the controller, and a wireless receiver connected to the controller. The wireless receiver is arranged to receive a signal from a wireless device to cause the controller to send an engine start signal to cause starting of the engine and wherein the input when actuated causes the controller to send an engine start signal to cause starting of the engine. In at least some implementations, no keyed ignition switch is provided to start the engine and the engine is started only via the wireless device or the input.

公开(公告)号：US11373798B2

公开(公告)日：2022-06-28

申请号：US16612442

申请日：2018-05-11

申请人： Walbro LLC

发明人： Shunya Nakamura ,  Yuki Tanaka ,  Kazunori Tsubakino

IPC分类号： H01F27/24 ,  H01F27/32 ,  F02P1/00 ,  F02P3/02 ,  H01F27/02 ,  H01F27/28 ,  H01F38/12 ,  F02P1/02 ,  H01F27/26

摘要： 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.

公开(公告)号：US11319902B2

公开(公告)日：2022-05-03

申请号：US16960402

申请日：2019-01-18

申请人： Walbro LLC

发明人： Martin N. Andersson ,  Dale P. Kus

IPC分类号： F02M17/04 ,  F02M7/18 ,  F02B63/02 ,  F02B75/02 ,  F02M19/02

摘要： In at least some implementations, a charge forming device includes a body having a main bore, a fuel metering assembly including a diaphragm that defines at least part of a fuel chamber from which fuel is provided to the main bore and a reference chamber separate from the fuel chamber, a passage communicated with a subatmospheric pressure source and with the reference chamber, and an electrically actuated valve having an open position and a closed position, and wherein the valve at least substantially prevents communication of the pressure source with the reference chamber when the valve is in the closed position and permits communication of the pressure source with the reference chamber when the valve is in the open position to vary the rate of fuel flow from the fuel chamber.

公开(公告)号：US20220003193A1

公开(公告)日：2022-01-06

申请号：US17291442

申请日：2019-11-01

申请人： Walbro LLC

发明人： Elton J. Fisch ,  Douglas W. Salowitz, Jr. ,  Edward J. Talaski

IPC分类号： F02M37/02 ,  F02M37/10 ,  F02M37/18

摘要： In at least some implementations, an assembly includes a reservoir, a primary fuel pump having an inlet in communication with the reservoir's internal volume, an outlet, a motor and a pumping element driven by the motor and a secondary fuel pump with a body having first and second inlets and an outlet. The first inlet receives fuel from the primary fuel pump and a nozzle is communicated with the first inlet and fuel flows out of the nozzle into the body via the first inlet. The second inlet is in communication with the reservoir inlet, and the outlet is in communication with the internal volume. The flow of fuel through the nozzle draws fuel from the fuel source through the second fuel inlet and that fuel is combined with the flow of fuel from the nozzle and discharged into the reservoir.

公开(公告)号：US20210381470A1

公开(公告)日：2021-12-09

申请号：US17408544

申请日：2021-08-23

申请人： Walbro LLC

发明人： Eric L. King ,  George M. Pattullo

IPC分类号： F02M19/01 ,  F16K31/44 ,  F02M9/08 ,  F02M19/04 ,  B01F3/04

摘要： In at least some implementations, a valve for a charge forming device, includes a needle having a first end and a second end, and a valve body. The valve body has an axis extending between a first end and a second end, and a cavity open to the second end and in which part of the needle is received with the second end of the needle extending out of the second end of the valve body. The valve body also has a projection extending axially from the first end of the valve body to a free end of the projection, and the valve body has at least one drive surface axially spaced from the free end, the drive surface extends axially and radially.