公开(公告)号：US20030136386A1

公开(公告)日：2003-07-24

申请号：US10341357

申请日：2003-01-14

申请人： NIPPON SOKEN, INC.

发明人： Hideaki Itakura ,  Naoya Kato ,  Masaki Takeyama ,  Yoshinori Inuzuka ,  Minoru Honda ,  Kouichi Oda

IPC分类号： F02M033/02

CPC分类号： F02M35/10222 ,  F02M25/06 ,  F02M25/089 ,  F02M35/0218 ,  F02M35/10019 ,  F02M35/10281 ,  F02M35/1255 ,  F02M35/1288 ,  F02M35/14 ,  Y02T10/121

摘要： A shut valve is provided in an intake line farther upstream than a throttle valve of the intake line and farther downstream than an air cleaner. This shut valve is opened by a signal or the like from an ECU when an engine is operating. Further, the shut valve closes when the engine is stopped so as to suppress evaporative fuel inside the intake line from flowing outside through the air cleaner. The evaporative fuel trapped inside the intake line passes through a bypass passage that provides communication between the intake line and the canister, and is then adsorbed with an adsorbent in the canister. A blow-by line is also connected to the intake line that is closed off by the shut valve. Because the blow-by line is closed off by a blow-by valve, which is closed during normal operation, when the engine is stopped, sticking of the shut valve and the throttle valve and the like due to the inflow of blow-by gas into the intake line is inhibited.

摘要翻译： 在比进气管路的节流阀更上游的进气管线处设置关闭阀，并且比空气滤清器更下游。 当发动机运转时，该关闭阀由来自ECU的信号等打开。 此外，当发动机停止时，关闭阀关闭，以抑制进气管内部的蒸发燃料通过空气净化器流出。 捕集在进气管内部的蒸发燃料通过旁通通道，该通道提供进气管和罐之间的连通，然后吸附在罐中。 吹气线也连接到由关闭阀关闭的进气管线。 由于在正常运转时关闭的窜缸闭合泄漏线，所以当发动机停止时，由于窜气的流入导致关闭阀和节流阀等的粘附 进入线被禁止。

公开(公告)号：US20040083894A1

公开(公告)日：2004-05-06

申请号：US10689667

申请日：2003-10-22

申请人： Denso Corporation ,  Nippon Soken, Inc.

发明人： Nobuhiko Koyama ,  Hideaki Itakura

IPC分类号： B01D053/02 ,  B01D059/26

CPC分类号： B01D53/0415 ,  B01D53/02 ,  B01D2253/102 ,  B01D2253/31 ,  B01D2257/702 ,  B01D2258/01 ,  B01D2259/4516 ,  B01D2259/4566 ,  F02M25/0809 ,  F02M25/0836 ,  F02M25/0854 ,  F02M2025/0845 ,  F02M2025/0863

摘要： A canister is connected to a fuel tank to adsorb fuel vapor vaporized in the fuel tank and includes a canister housing and a canister main body, which is received in the canister housing and communicates with the fuel tank at one end. The canister housing includes an atmospheric port and a filter chamber, and the filter chamber receives a filter and communicates between the other end of the canister main body and the atmospheric port, which in turn communicates with the atmosphere. The filter includes an active carbon part, an atmosphere-side unwoven fabric and a tank-side unwoven fabric. The active carbon part includes active carbon granules, which adsorb fuel vapor vaporized in the fuel tank. The atmosphere-side unwoven fabric and the tank-side unwoven fabric sandwich the active carbon part therebetween in a flow direction of air, which passes through the active carbon part.

摘要翻译： 罐连接到燃料箱以吸附在燃料箱中蒸发的燃料蒸汽，并且包括罐壳体和罐主体，其容纳在罐壳体中并在一端与燃料箱连通。 所述罐壳体包括大气口和过滤室，所述过滤室容纳过滤器，并且在所述罐主体的另一端与大气口连通，所述大气口又与大气连通。 过滤器包括活性炭部分，气氛侧非织造织物和罐侧非织造织物。 活性炭部分包括活性炭颗粒，其吸附在燃料箱中蒸发的燃料蒸气。 气氛侧无纺织物和罐侧无纺布沿着空气的流动方向将活性炭部分夹在其间，通过活性炭部分。

公开(公告)号：US20040060343A1

公开(公告)日：2004-04-01

申请号：US10662481

申请日：2003-09-16

申请人： NIPPON SOKEN, INC.

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

IPC分类号： G01M003/26 ,  G01M003/04

CPC分类号： F02M25/0809 ,  F02M25/0818 ,  F02M25/0827 ,  F02M25/089

摘要： A fuel vapor leakage inspection apparatus utilizes a fuel tank, an adsorption container which houses an adsorbent for adsorbing fuel vapor generated in the fuel tank, and an exhaust device for communicating between the adsorption container and an intake pipe. Furthermore, the apparatus utilizes a pressure means that pressurizes or depressurizes a fuel vapor path formed from the fuel tank through the adsorption container to the exhaust device. A leakage detection means detects leakage from the fuel vapor path after the fuel vapor path is pressurized or depressurized by the pressure means while a calculation means calculates an amount of fuel vapor adsorbed, and a control means determines if the pressure means should execute leakage inspection of the fuel vapor path in accordance with the amount of the fuel vapor calculated by the calculation means.

摘要翻译： 燃料蒸汽泄漏检查装置利用燃料箱，容纳吸附在燃料箱中的燃料蒸汽的吸附剂的吸附容器和吸附容器与吸气管之间连通的排气装置。 此外，该装置利用对由燃料箱形成的燃料蒸气路径通过吸附容器向排气装置进行加压或减压的压力装置。 泄漏检测装置在计算装置计算吸附的燃料蒸汽量的同时，在燃料蒸汽路径被压力装置加压或减压之后，检测来自燃料蒸气路径的泄漏，并且控制装置确定压力装置是否应执行泄漏检查 所述燃料蒸汽通道根据由所述计算装置计算的所述燃料蒸汽的量。