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公开(公告)号：US11846284B1
公开(公告)日：2023-12-19
申请号：US17854063
申请日：2022-06-30
Applicant: FORD GLOBAL TECHNOLOGIES, LLC
Inventor： Dengfu Zhang , Akhter uz Zaman , Pablo Davilla , Mark Davis
CPC classification number: F04C14/18 , F04C2/3446 , F04C15/0034 , F04C2240/30
Abstract: A sliding vane pump includes a fixed housing defining inlet and outlet ports and a sliding housing defining a cylindrical cavity and configured to slide within the fixed housing. The fixed housing and the sliding housing define a gap therebetween. A rotor is configured to rotate within the cylindrical cavity and has a plurality of vanes configured to seal against an inner circumferential wall of the cylindrical cavity to define a plurality of pumping chambers. A seal is located in the gap disposed between the fixed housing and the sliding housing to split the gap into first and second compensation chambers. The first chamber is fluidly connected to a first pumping chamber of the plurality of pumping chambers and the second chamber is connected to a second pumping chamber of the plurality of pumping chambers.
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公开(公告)号：US20170159657A1
公开(公告)日：2017-06-08
申请号：US14962019
申请日：2015-12-08
Applicant: Ford Global Technologies, LLC
Inventor： Dengfu Zhang , Robert J. Miller , Derek Kinch , Mark Davis , Akhter Zaman
CPC classification number: F04C14/22 , F04C2/344 , F04C14/223 , F04C2240/20 , F04C2240/30
Abstract: A sliding vane pump includes a passageway that fluidly connects one or more pumping chambers to a side chamber. The passageway pressurizes the side chamber. This fluid pressure exerts a force that counteracts the force caused by pressure differences between the outlet pumping chambers and the inlet pumping chambers. At high speed, part of the side chamber is pressurized by the smallest volume outlet pumping chamber while another portion of the side chamber is pressurized by the largest volume outlet chamber. This results in a force counteracting an uncommanded displacement decrease of the pump.
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公开(公告)号：US09541099B2
公开(公告)日：2017-01-10
申请号：US14219064
申请日：2014-03-19
Applicant: FORD GLOBAL TECHNOLOGIES, LLC
Inventor： Lev Pekarsky , Robert O. Burkhart , Mark Davis
CPC classification number: F15B1/24 , F15B1/08 , F15B2201/205 , F15B2201/31 , F15B2201/4155 , Y10T137/0318
Abstract: An accumulator includes a cylinder for containing a working fluid and a first volume of pressurized gas, the gas and fluid being separated by a displaceable piston and a first seal contacting the piston and the cylinder, a reservoir carried on the piston for containing a second volume of pressurized gas, and a device that permits gas flow from the second volume into the first volume.
Abstract translation: 蓄能器包括用于容纳工作流体和第一体积的加压气体的气缸，气体和流体由可移位的活塞和接触活塞和气缸的第一密封件隔开，第一密封件接触活塞和气缸，承载在活塞上用于容纳第二容积 的加压气体，以及允许气体从第二体积流入第一体积的装置。
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公开(公告)号：US20140311577A1
公开(公告)日：2014-10-23
申请号：US14219064
申请日：2014-03-19
Applicant: FORD GLOBAL TECHNOLOGIES, LLC
Inventor： Lev Pekarsky , Robert O. Burkhart , Mark Davis
CPC classification number: F15B1/24 , F15B1/08 , F15B2201/205 , F15B2201/31 , F15B2201/4155 , Y10T137/0318
Abstract: An accumulator includes a cylinder for containing a working fluid and a first volume of pressurized gas, the gas and fluid being separated by a displaceable piston and a first seal contacting the piston and the cylinder, a reservoir carried on the piston for containing a second volume of pressurized gas, and a device that permits gas flow from the second volume into the first volume.
Abstract translation: 蓄能器包括用于容纳工作流体和第一体积的加压气体的气缸，气体和流体由可移位的活塞和接触活塞和气缸的第一密封件隔开，第一密封件接触活塞和气缸，承载在活塞上用于容纳第二容积 的加压气体，以及允许气体从第二体积流入第一体积的装置。
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Patent Agency Ranking
公开(公告)号：US20240003346A1
公开(公告)日：2024-01-04
申请号：US17854063
申请日：2022-06-30
Applicant: FORD GLOBAL TECHNOLOGIES, LLC
Inventor： Dengfu Zhang , Akhter uz Zaman , Pablo Davilla , Mark Davis
CPC classification number: F04C2/3448 , F04C14/12 , F04C15/0003 , F04C2240/30
Abstract: A sliding vane pump includes a fixed housing defining inlet and outlet ports and a sliding housing defining a cylindrical cavity and configured to slide within the fixed housing. The fixed housing and the sliding housing define a gap therebetween. A rotor is configured to rotate within the cylindrical cavity and has a plurality of vanes configured to seal against an inner circumferential wall of the cylindrical cavity to define a plurality of pumping chambers. A seal is located in the gap disposed between the fixed housing and the sliding housing to split the gap into first and second compensation chambers. The first chamber is fluidly connected to a first pumping chamber of the plurality of pumping chambers and the second chamber is connected to a second pumping chamber of the plurality of pumping chambers.
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公开(公告)号：US20200032897A1
公开(公告)日：2020-01-30
申请号：US16049229
申请日：2018-07-30
Applicant: Ford Global Technologies, LLC
Inventor： Joseph Scott Slayton , Patrick Heikka , Mark Davis , Hafiz Shafeek Khafagy , Benjamin Rupley
Abstract: A transmission assembly including a clutch system, an accumulator, and a controller is provided. The clutch system may include a flow source. The accumulator may be selectively in communication with the flow source via a solenoid valve. The controller may be programmed to, responsive to detection of a vehicle stop and the accumulator charged below a predetermined threshold, output a command to open the solenoid valve to rapidly charge the accumulator from the flow source. The predetermined threshold may be an accumulator pressure between 700 kPa and 900 kPa. The controller may be further programmed to, responsive to detection of the accumulator being charged to or above the predetermined threshold, output a shut down command to an engine in communication with the transmission assembly and to output a close command to the solenoid valve. The flow source may be a pump out circuit or a line pressure circuit.
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公开(公告)号：US10704676B2
公开(公告)日：2020-07-07
申请号：US16049229
申请日：2018-07-30
Applicant: Ford Global Technologies, LLC
Inventor： Joseph Scott Slayton , Patrick Heikka , Mark Davis , Hafiz Shafeek Khafagy , Benjamin Rupley
Abstract: A transmission assembly including a clutch system, an accumulator, and a controller is provided. The clutch system may include a flow source. The accumulator may be selectively in communication with the flow source via a solenoid valve. The controller may be programmed to, responsive to detection of a vehicle stop and the accumulator charged below a predetermined threshold, output a command to open the solenoid valve to rapidly charge the accumulator from the flow source. The predetermined threshold may be an accumulator pressure between 700 kPa and 900 kPa. The controller may be further programmed to, responsive to detection of the accumulator being charged to or above the predetermined threshold, output a shut down command to an engine in communication with the transmission assembly and to output a close command to the solenoid valve. The flow source may be a pump out circuit or a line pressure circuit.
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公开(公告)号：US10119540B2
公开(公告)日：2018-11-06
申请号：US14962019
申请日：2015-12-08
Applicant: Ford Global Technologies, LLC
Inventor： Dengfu Zhang , Robert J. Miller , Derek Kinch , Mark Davis , Akhter Zaman
Abstract: A sliding vane pump includes a passageway that fluidly connects one or more pumping chambers to a side chamber. The passageway pressurizes the side chamber. This fluid pressure exerts a force that counteracts the force caused by pressure differences between the outlet pumping chambers and the inlet pumping chambers. At high speed, part of the side chamber is pressurized by the smallest volume outlet pumping chamber while another portion of the side chamber is pressurized by the largest volume outlet chamber. This results in a force counteracting an uncommanded displacement decrease of the pump.
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公开(公告)号：US20150089934A1
公开(公告)日：2015-04-02
申请号：US14039282
申请日：2013-09-27
Applicant: FORD GLOBAL TECHNOLOGIES, LLC
Inventor： Adam J. Richards , Lev Pekarsky , Robert Orley Burkhart , Mark Davis
IPC: F15B15/20
CPC classification number: F15B1/027 , F15B13/027 , F16H61/0251 , F16H2061/0034
Abstract: A pressurized fluid storage system is suitable for use to rapidly engage a transmission following an engine shutdown. The system includes a reservoir, such as an accumulator, connected to a manifold by a single passageway. A pump provides pressurized fluid to the manifold while a transmission control system draws fluid from the manifold. A check valve in the single passageway passively holds fluid in the reservoir when pressure in the reservoir exceeds pressure in the manifold and allows flow into the reservoir when the manifold pressure is higher. An actively controlled actuator overrides the passive check ball to release pressurized fluid into the manifold to rapidly re-engage transmission clutches.
Abstract translation: 加压流体存储系统适用于在发动机关闭之后快速接合变速器。 该系统包括通过单个通道连接到歧管的储存器，例如蓄能器。 一个泵向歧管提供加压流体，同时变速器控制系统从歧管抽取流体。 单个通道中的止回阀在储存器中的压力超过歧管中的压力时被动地将流体保持在储存器中，并且当歧管压力较高时允许流入储存器。 主动控制的执行器覆盖被动止回球，以将加压流体释放到歧管中，以快速地重新啮合传动离合器。
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