公开(公告)号：US20070074708A1

公开(公告)日：2007-04-05

申请号：US11529278

申请日：2006-09-29

申请人： Noriyasu Amano ,  Hideaki Itakura ,  Naoya Kato ,  Kazuhiro Hayashi ,  Hidetoshi Uchiyama

发明人： Noriyasu Amano ,  Hideaki Itakura ,  Naoya Kato ,  Kazuhiro Hayashi ,  Hidetoshi Uchiyama

IPC分类号： F02B25/06

CPC分类号： F02M25/06 ,  Y02T10/121

摘要： A PCV valve is arranged in an outflow passage. An ECU controls rotation of a motor such that an opening degree of the PCV valve increases in response to an increase in an opening degree of a throttle valve. The outflow passage connects an interior of a head cover of an engine to a portion of an intake air passage located on a downstream side of the throttle valve. The outflow passage recirculates blow-by gas leaked from a combustion chamber into an interior of a crankcase to the portion of the intake air passage located on the downstream side of the throttle valve. An inflow passage connects the interior of the head cover to a portion of the intake air passage located on an upstream side of the throttle valve. The inflow passage conducts intake air from the intake air passage to the interior of the head cover.

摘要翻译： PCV阀布置在流出通道中。 ECU控制电动机的旋转，使得PCV阀的开度响应于节流阀的开度的增加而增加。 流出通道将发动机的头罩的内部连接到位于节流阀的下游侧的进气通道的一部分。 流出通道将从燃烧室泄漏的窜气再循环到位于节流阀下游侧的进气通道的部分的曲轴箱内部。 流入通道将头盖的内部连接到位于节气门上游侧的进气通道的一部分。 流入通道将来自进气通道的进气导入头罩的内部。

公开(公告)号：US06971375B2

公开(公告)日：2005-12-06

申请号：US11087811

申请日：2005-03-24

申请人： Noriyasu Amano ,  Takanobu Kawano ,  Koichi Inagaki ,  Nobuhiko Koyama ,  Masao Kano ,  Shinsuke Takakura ,  Yoshichika Yamada

发明人： Noriyasu Amano ,  Takanobu Kawano ,  Koichi Inagaki ,  Nobuhiko Koyama ,  Masao Kano ,  Shinsuke Takakura ,  Yoshichika Yamada

IPC分类号： F02D41/02 ,  F02D45/00 ,  F02M25/07 ,  F02M25/08 ,  F02M33/02

CPC分类号： F02M25/089 ,  F02M25/0809 ,  F02M25/0827 ,  F02M25/0872

摘要： A pump generates a gas flow within a measurement passage having an orifice. A differential pressure sensor detects a pressure difference between both ends of the orifice. Switching valves are disposed in the measurement passage to create a first concentration measurement state in which the measurement passage is opened at both ends thereof and the gas flowing through the measurement passage is the atmosphere, and a second concentration measurement state in which the measurement passage is in communication at both ends thereof with a canister and the gas flowing through the measurement passage is a fuel vapor-containing air-fuel mixture provided from the canister. An ECU calculates a fuel vapor concentration by based on a pressure difference detected in the first concentration measurement state and a pressure difference detected in the second concentration measurement state.

摘要翻译： 泵在具有孔口的测量通道内产生气流。 差压传感器检测孔口两端之间的压力差。 切换阀设置在测量通道中以产生第一浓度测量状态，其中测量通道在其两端开口，并且流过测量通道的气体是大气;以及第二浓度测量状态，其中测量通道是 在其两端与罐连通，并且流过测量通道的气体是从罐提供的含燃料蒸气的空气 - 燃料混合物。 ECU根据在第一浓度测量状态下检测的压力差和在第二浓度测量状态下检测的压力差来计算燃料蒸气浓度。

公开(公告)号：US06732718B2

公开(公告)日：2004-05-11

申请号：US10084979

申请日：2002-03-01

申请人： Masao Kano ,  Yasunori Kobayashi ,  Hideaki Itakura ,  Noriyasu Amano

发明人： Masao Kano ,  Yasunori Kobayashi ,  Hideaki Itakura ,  Noriyasu Amano

IPC分类号： F02M2508

CPC分类号： F04B45/041 ,  F02M25/08 ,  F02M25/0836 ,  F02M2025/0845 ,  F04B45/047

摘要： In a double-acting diaphragm pump, a diaphragm is provided to divide a pump body into two pump chambers. An electromagnetic-type reciprocating actuator is provided in a housing hermetically integrated with the pump body. Different from an electric-type pump, the actuator is integrally mounted on the double-acting diaphragm pump and an entire system is hermetically sealed. Therefore, even if the diaphragm is torn, fuel vapor is prevented from leaking outside. Additionally, four check valves are provided to control the discharge of vapor from a canister side to an engine side. These check valves may employ a reed to control vapor flow or a spring and plate to control flow. In addition, since the pump may be a double-acting type, a large discharge volume is obtained and the pump can be made smaller. The pump may also be a non double-acting type.

摘要翻译： 在双作用隔膜泵中，提供隔膜以将泵体分成两个泵室。 电磁式往复式致动器设置在与泵体密封结合的壳体中。 与电动泵不同，致动器整体安装在双作用隔膜泵上，整个系统被气密密封。 因此，即使膜片被撕裂，也能防止燃料蒸汽泄漏到外部。 另外，设有四个止回阀以控制从罐侧到发动机侧的蒸气排放。 这些止回阀可以采用芦苇来控制蒸汽流，或者弹簧和板来控制流量。 此外，由于泵可以是双作用型，因此可以获得大的排出量，并且可以使泵更小。 泵也可以是非双作用型。

公开(公告)号：US06698403B2

公开(公告)日：2004-03-02

申请号：US10241444

申请日：2002-09-12

申请人： Minoru Honda ,  Kouichi Oda ,  Naoya Kato ,  Masaki Takeyama ,  Yoshinori Inuzuka ,  Noriyasu Amano ,  Takashi Nishimoto

发明人： Minoru Honda ,  Kouichi Oda ,  Naoya Kato ,  Masaki Takeyama ,  Yoshinori Inuzuka ,  Noriyasu Amano ,  Takashi Nishimoto

IPC分类号： F02M3302

CPC分类号： F02M35/10019 ,  F02M25/08 ,  F02M35/10216 ,  F02M35/10275

摘要： An absorbent, such as, for example, an active carbon, is provided in an intake air passage, for example, in an air cleaner, to efficiently adsorb fuel vapor. To ensure that fuel vapor adsorbed into the intake air passage can be efficiently desorbed even when there is only a small amount of the intake air, an intake throttle valve is provided upstream of the adsorbent and an opening of the intake throttle valve is throttled so as to decompress an area near the adsorbent. Desorption of fuel vapor also can be efficiently promoted by using a heater to directly heat the adsorbent in the intake air passage or by heating the intake air to indirectly heat the adsorbent.

摘要翻译： 例如在空气滤清器中的进气通道中设置吸收剂，例如活性炭，以有效吸附燃料蒸气。 为了确保吸入进气通道中的燃料蒸气即使在仅有少量进气的情况下能够被有效地解吸，也可以在吸附剂的上游设置进气节流阀，并且进气节流阀的开度被节流，以便 以减压吸附剂附近的区域。 通过使用加热器直接加热进气通道中的吸附剂或通过加热进气来间接加热吸附剂，可以有效地促进燃料蒸气的解吸。

公开(公告)号：US06634343B2

公开(公告)日：2003-10-21

申请号：US09996779

申请日：2001-11-30

申请人： Masao Kano ,  Nobuhiko Koyama ,  Hideki Kato ,  Noriyasu Amano ,  Hideaki Itakura ,  Naoya Kato

发明人： Masao Kano ,  Nobuhiko Koyama ,  Hideki Kato ,  Noriyasu Amano ,  Hideaki Itakura ,  Naoya Kato

IPC分类号： F02M5502

CPC分类号： F02M25/0818 ,  F02M25/089

摘要： An evaporated fuel adsorbed by an adsorbing member of a canister is compulsively desorbed by driving of a purge pump and is introduced into an intake passage of an internal combustion engine. In this instance, intake pulsation of the intake passage of an internal combustion engine is introduced into a driving chamber of the purge pump and a partition is moved, so that the capacity of a pump chamber is varied. In other words, the purge pump conducts its pump operation by utilizing the movement of the partition resulting from the introduction of intake pulsation of the intake passage of the internal combustion engine, and a power loss can be thus reduced. When a pressure difference is small between the intake pressure inside the intake passage of the internal combustion engine and the pressure on the canister side, too, a desired purge flow rate can be secured in accordance with the operating condition of the internal combustion engine.