公开(公告)号：US06220230B1

公开(公告)日：2001-04-24

申请号：US09385462

申请日：1999-08-30

申请人： Katsuhiko Kawamura ,  Akihiro Kawano

发明人： Katsuhiko Kawamura ,  Akihiro Kawano

IPC分类号： F02M3304

CPC分类号： F02M25/0809

摘要： An evaporative emission control system is provided which includes a bypass valve, purge control valve and a vent control valve. To make a leak diagnosis, firstly the vent control valve is closed while the purge control valve is opened, whereby to negatively pressurize the inside of a fuel vapor conduit portion extending from the bypass valve to an intake pipe side. After the pressure in the fuel vapor conduit portion from the bypass valve to the intake pipe is reduced to a predetermined value, the purge control valve is closed. Then, the bypass valve is opened, and after lapse of a predetermined time from the opening of the bypass valve a variation of pressure in a conduit extending from the fuel tank to the purge control valve is asured. Based on the variation of pressure, a leak diagnosis is made. By this, the evaporative emission control system can prevent the fuel vapor in the fuel tank from being drawn into the intake pipe during reduction of pressure in the conduit and thus causing unstable operation of an engine.

摘要翻译： 提供了一种蒸发排放控制系统，其包括旁通阀，净化控制阀和排气控制阀。 为了进行泄漏诊断，首先在排气控制阀打开时关闭排气调节阀，由此对从旁通阀延伸到进气管侧的燃料蒸气导管部的内部进行负压。 在从旁通阀到进气管的燃料蒸汽导管部分的压力降低到预定值之后，清洗控制阀关闭。 然后，旁通阀打开，并且在从旁通阀的打开经过预定时间之后，从燃料箱延伸到净化控制阀的管道中的压力变化是稳定的。 基于压力的变化，进行泄漏诊断。 由此，蒸发排放控制系统可以防止燃料箱内的燃料蒸气在导管内的压力降低期间被吸入进气管，从而引起发动机不稳定的运转。

公开(公告)号：US06220229B1

公开(公告)日：2001-04-24

申请号：US09292933

申请日：1999-04-16

申请人： Katsuhiko Kawamura ,  Akihiro Kawano

发明人： Katsuhiko Kawamura ,  Akihiro Kawano

IPC分类号： F02M3304

CPC分类号： F02M25/0809

摘要： There is provided an apparatus for detecting a leak in an evaporative emission control system for an internal combustion engine including a fuel tank, a canister for collecting fuel vapors from the fuel tank, and a purge control valve disposed between the canister and the intake pipe for allowing flow of the fuel vapors from the canister to the intake pipe such that a fuel vapor flow passage is provided which extends from the fuel tank to the purge control valve by way of the canister. The apparatus comprises a vent control valve for selectively opening and closing an atmospheric vent of a canister, an actuating device for actuating the purge control valve and the vent control valve to fully close immediately after the engine starts and thereby closing the fuel vapor flow passage in a way as to prevent communication between an inside and outside of the fuel vapor flow passage, a pressure sensor for detecting a pressure in the fuel vapor flow passage, and a diagnostic device for detecting a leak on the basis of the pressure in the fuel vapor flow passage which reduces with increase of consumption of fuel in the fuel tank after the fuel vapor flow passage is closed.

摘要翻译： 提供了一种用于检测用于内燃机的蒸发排放控制系统中的泄漏的装置，所述内燃机包括燃料箱，用于从燃料箱收集燃料蒸气的罐和设置在罐和进气管之间的净化控制阀， 允许燃料蒸汽从罐流到进气管，从而提供燃料蒸气流动通道，其通过罐从燃料箱延伸到排气控制阀。 该装置包括用于选择性地打开和关闭罐的大气通风口的排气控制阀，用于致动清洗控制阀和排气控制阀的致动装置，以在发动机启动后立即完全关闭，从而关闭燃料蒸气流动通道 用于防止燃料蒸汽流路的内部和外部之间的连通的方法，用于检测燃料蒸汽流动通道中的压力的​​压力传感器，以及用于基于燃料蒸气中的压力检测泄漏的诊断装置 在燃料蒸气流动通道关闭之后随着燃料箱内燃料消耗的增加而减小的流路。

公开(公告)号：US6164940A

公开(公告)日：2000-12-26

申请号：US392609

申请日：1999-09-09

申请人： Kiyoshi Terauchi ,  Akiyoshi Higashiyama ,  Akihiro Kawano

发明人： Kiyoshi Terauchi ,  Akiyoshi Higashiyama ,  Akihiro Kawano

IPC分类号： F04C28/26 ,  B60H1/32 ,  F01C1/02 ,  F04C18/02 ,  F04C18/04 ,  F04C18/06 ,  F04C28/06 ,  F04C28/12 ,  F04C28/16 ,  F04C29/00

CPC分类号： F04C28/12 ,  F04C28/16

摘要： In a scroll type compressor in which a compression mechanism compresses a gaseous fluid with moving the gaseous fluid along a spiral path to produce a compressed gas, an escaping path is provided for escaping the compressed gas from the compression mechanism at an intermediate portion of the spiral path. A pressure transmission path transmits pressure of the compressed gas to a valve mechanism which is for controlling an open and an close of the escaping path. The pressure transmission path has a delay mechanism for delaying transmission of a change of the pressure to the valve mechanism.

摘要翻译： 在涡旋式压缩机中，其中压缩机构通过沿着螺旋路径移动气态流体来压缩气态流体以产生压缩气体，提供了一种逸出路径，用于在螺旋的中间部分处从压缩机构逸出压缩气体 路径。 压力传递路径将压缩气体的压力传递到用于控制逸出路径的打开和关闭的阀机构。 压力传递路径具有用于延迟压力变化到阀机构的延迟机构。

公开(公告)号：US4505651A

公开(公告)日：1985-03-19

申请号：US521258

申请日：1983-08-08

申请人： Kiyoshi Terauchi ,  Akihiro Kawano ,  Atsushi Mabe

发明人： Kiyoshi Terauchi ,  Akihiro Kawano ,  Atsushi Mabe

IPC分类号： F04C18/02 ,  F01C1/02 ,  F01C17/06 ,  F04C28/16 ,  F04C28/26 ,  F04C29/08

CPC分类号： F04C28/16

摘要： A scroll type compressor is disclosed. The compressor includes a housing having a fluid inlet port and an outlet port. A fixed scroll is fixed within the housing and has a circular end plate from which a first wrap extends. The end plate of the fixed scroll partitions the inner chamber of the housing into a front chamber connected to the fluid inlet port and a rear chamber. The rear chamber is divided into a central chamber connected to the fluid outlet port and an outer chamber. An orbiting scroll, which is disposed in the front chamber, also has a circular end plate from which a second wrap extends. Both wraps interfit at angular and radial offsets to form a plurality of line contacts to define at least one pair of sealed off fluid pockets. The end plate of the fixed scroll has at least two holes which are placed at symmetrical position and connect the fluid pockets to the outer chamber. The end plate also has a communicating hole which connects the first chamber and the outer chamber. Valve members are disposed in the outer chamber for opening and closing each hole. A control mechanism which is disposed in the outer chamber controls the operation of the valve members.

摘要翻译： 公开了一种涡旋式压缩机。 压缩机包括具有流体入口和出口的壳体。 固定的涡卷固定在壳体内，并具有圆形端板，第一卷绕物从该端板延伸。 固定涡旋盘的端板将壳体的内腔分隔成连接到流体入口和后室的前室。 后室被分成连接到流体出口和中心腔室的中心室。 设置在前室中的绕动涡卷机还具有圆形端板，第二卷绕件从该端板延伸。 两个包裹在角度和径向偏移处相互配合以形成多个线接触件以限定至少一对密封的流体袋。 固定涡旋盘的端板具有至少两个孔，这些孔被放置在对称位置并将流体袋连接到外室。 端板还具有连接第一室和外室的连通孔。 阀构件设置在外室中，用于打开和关闭每个孔。 设置在外部室中的控制机构控制阀构件的操作。