-
公开(公告)号：US11480138B1
公开(公告)日：2022-10-25
申请号：US17240244
申请日：2021-04-26
发明人： Aed Dudar
摘要： A vehicle includes a fuel tank and an evaporative-emissions system having a primary subsystem and an auxiliary subsystem. The primary subsystem has a fuel-vapor canister in fluid communication with the fuel tank to capture fuel vapors of the fuel tank. The auxiliary subsystem is configured to capture fuel vapors associated with an external fuel-storage device. The auxiliary subsystem has an auxiliary port located on an exterior of the vehicle and is configured to connect with the external fuel-storage device. The auxiliary port is selectively connected in fluid communication with the fuel-vapor canister by a valve.
-
公开(公告)号：US11041452B2
公开(公告)日：2021-06-22
申请号：US15997503
申请日：2018-06-04
发明人： Aed Dudar
摘要： Methods and systems are provided for conducting vehicle fuel system and/or evaporative emissions system diagnostics, where the diagnostics rely on a positive pressure with respect to atmospheric pressure. In one example, a method comprises activating an electric compressor positioned in an intake of an engine configured to receive purge gasses from the evaporative emissions system under boosted engine operation and natural engine operation, to direct a positive pressure with respect to atmospheric pressure to the fuel system and/or evaporative emission system to conduct said diagnostic. In this way, diagnostics that rely on positive pressure with respect to atmospheric pressure may be conducted in vehicles with a dual-path purge system, without introduction of a pump in the evaporative emissions system.
-
公开(公告)号：US20200370497A1
公开(公告)日：2020-11-26
申请号：US16418894
申请日：2019-05-21
发明人： Aed Dudar
摘要： Methods and systems are provided for conducting a diagnostic on a fuel tank isolation valve that regulates a flow of fuel vapors from a fuel tank to an evaporative emissions system. In one example, a method comprises determining whether the fuel tank isolation valve is stuck in a first open position or a second open position based on a time duration between commanding open a canister purge valve to direct fuel vapors to an engine, and an exhaust gas sensor indicating a rich air-fuel ratio. In this way, appropriate mitigating action may be taken in response to the fuel tank isolation valve being stuck in either the first open position or the second open position.
-
公开(公告)号：US10030780B2
公开(公告)日：2018-07-24
申请号：US14265646
申请日：2014-04-30
摘要： A valve assembly for an air flow system, where the air flow system has a turbocharger unit and a venturi valve member for receiving a portion of the pressurized air from the turbocharger unit, and generating back pressure. The valve assembly includes a bypass switching valve and a bypass check valve. During a first mode of operation, the valve assembly is exposed to vacuum pressure, and the bypass check valve is exposed to the vacuum pressure such that the bypass check valve is placed in a closed position. During a second mode of operation the turbocharger unit is activated, pressurized air flows through the bypass switching valve, and places the bypass check valve in an open position, and the back pressure generated by the venturi valve member and the pressurized air from the turbocharger unit creates a pressure differential in the bypass check valve.
-
公开(公告)号：US10018161B2
公开(公告)日：2018-07-10
申请号：US15292678
申请日：2016-10-13
申请人： Stant USA Corp.
IPC分类号： F02M33/02 , F02M25/08 , F02M35/10 , B60K15/035 , B01D53/04
CPC分类号： F02M25/0854 , B01D53/0407 , B01D53/0446 , B01D53/0454 , B01D2253/102 , B01D2257/7022 , B01D2259/402 , B01D2259/4516 , B60K15/03504 , B60K15/03519 , B60K2015/03514 , F02M25/089 , F02M35/10222 , F17C11/007
摘要： A vehicle fuel system includes a vapor recovery canister containing a primary carbon bed and a secondary carbon bed. Each carbon bed is configured to capture hydrocarbon material associated with fuel vapor discharged from a vehicle fuel tank.
-
公开(公告)号：US09828952B2
公开(公告)日：2017-11-28
申请号：US14476784
申请日：2014-09-04
发明人： Tetsuya Takahashi
CPC分类号： F02M25/0854 , F02M25/0836 , F02M2025/0845 , F16K31/402
摘要： A control valve is disposed on a vapor control system which controls vapor. A case and caps hold a diaphragm. The case and the diaphragm define a primary chamber. The caps and the diaphragm define a secondary chamber. The secondary chamber communicates to an inlet passage via a through hole formed as an orifice. An inlet pipe is arranged so that the inlet passage and the secondary chamber are adjacent each other by being separated by an outer wall. By employing this arrangement, the through hole can be formed without increasing a vapor permeable surface area. Since the through hole is not formed on the diaphragm, a stable open-and-close characteristic can be provided. The through hole may be formed by using a molding die for forming the inlet passage. Thereby, it is possible to improve productivity.
-
公开(公告)号：US09777683B2
公开(公告)日：2017-10-03
申请号：US14768773
申请日：2014-03-11
发明人： David L. Thomas
摘要： A starting system for an internal combustion engine that includes: a pump device in communication with a purging and priming circuit of a carburetor; a driven member coupled to the pump device; and a drive member rotatably carried by a recoil starter pulley of an engine. The drive member may positively drive the driven member in two directions, and the driving of the driven member may actuate the pump device.
-
8.发明授权公开(公告)号：US09650974B2
公开(公告)日：2017-05-16
申请号：US14606779
申请日：2015-01-27
发明人： Aed M. Dudar
IPC分类号： F02M33/02 , F02D41/00 , F02M25/08 , B60W20/00 , F02D41/04 , F02D29/02 , F02N11/04 , F02M35/10 , F02D13/02 , F02M26/23
CPC分类号： F02D41/004 , B60W20/00 , B60W2710/06 , F02D13/0207 , F02D29/02 , F02D41/003 , F02D41/0077 , F02D41/042 , F02D2041/0095 , F02M25/0836 , F02M25/089 , F02M26/23 , F02M33/025 , F02M35/10177 , F02N11/04 , Y02T10/47 , Y10S903/905
摘要： A method for an engine is presented, comprising, following an engine-off event, positioning a first engine cylinder with an intake valve open, opening a canister purge valve; and purging contents of the first engine cylinder to a fuel vapor canister. In this way, uncombusted fuel that may otherwise be emitted from the engine during a prolonged diurnal soak may be stored within the fuel vapor canister, thus decreasing overall vehicle emissions.
-
公开(公告)号：US09404445B2
公开(公告)日：2016-08-02
申请号：US14282286
申请日：2014-05-20
发明人： Taisuke Furuhata , Mahito Shikama , Ayumu Horiba
CPC分类号： F02M25/0809 , F02D29/02
摘要： An evaporated fuel treatment apparatus includes a diagnosis section for leak diagnosis of an evaporated fuel tightly-closed system. In first diagnosis stage in which an atmosphere on-off valve is in close state after an ignition switch is turned off, the diagnosis section performs first leak diagnosis, based on relationship between tank internal pressure detected by a tank internal pressure sensor and first threshold value; and in second diagnosis stage in which the atmosphere on-off valve is in close state after completion of first leak diagnosis, the diagnosis section performs second leak diagnosis, based on relationship between tank internal pressure detected by the tank internal pressure sensor and second threshold value. The atmosphere on-off valve is once opened after completion of first leak diagnosis. First threshold value is set with larger deviation from the atmospheric pressure compared with second threshold value used in second diagnosis stage.
摘要翻译： 蒸发燃料处理装置包括用于蒸发燃料密闭系统的泄漏诊断的诊断部。 在点火开关关闭之后，在大气开关阀处于关闭状态的第一诊断阶段，诊断部基于由箱内压传感器检测到的罐内压与第一阈值之间的关系进行第一泄漏诊断 ; 并且在完成第一泄漏诊断之后大气开关阀处于关闭状态的第二诊断阶段中，诊断部分基于由箱内压传感器检测到的罐内压与第二阈值之间的关系进行第二泄漏诊断 。 大气开关阀在第一次泄漏诊断完成后一次打开。 与第二诊断阶段中使用的第二阈值相比，第一阈值设定为与大气压力的偏差较大。
-
公开(公告)号：US09389142B2
公开(公告)日：2016-07-12
申请号：US14172209
申请日：2014-02-04
申请人： DENSO CORPORATION
发明人： Ryo Tamura , Yoshinori Maegawa
CPC分类号： G01M15/04 , F02M25/0809 , G01M3/26 , G01M15/042
摘要： A leakage diagnosis apparatus is applied to an evaporated-gas purge system including a negative-pressure sensor and a pressure detecting portion. The negative-pressure sensor introduces a negative pressure into an evaporation system. The pressure detecting portion detects the pressure in the evaporation system. The leakage diagnosis apparatus includes a leakage-diagnosis portion and a determining portion. The leakage-diagnosis portion executes a leakage diagnosis to determine whether a leakage of the evaporation system is generated. The determining portion determines whether an evaporated-gas amount in the evaporation system is in an excessive state while the internal combustion engine is stopped. The leakage-diagnosis portion prohibits or terminates the leakage diagnosis, when the determining portion determines that the evaporated-gas amount is in the excessive state.
摘要翻译： 将泄漏诊断装置应用于包括负压传感器和压力检测部的蒸发气体净化系统。 负压传感器将负压引入蒸发系统。 压力检测部分检测蒸发系统中的压力。 泄漏诊断装置包括泄漏诊断部和确定部。 泄漏诊断部分执行泄漏诊断以确定是否产生蒸发系统的泄漏。 确定部分确定在内燃机停止时蒸发系统中的蒸发气体量是否处于过度状态。 当确定部分确定蒸发气体量处于过度状态时，泄漏诊断部分禁止或终止泄漏诊断。
-
-
-
-
-
-
-
-
-
搜索结果
1130 条记录 (耗时 0.024 秒)
