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公开(公告)号：US20230193861A1
公开(公告)日：2023-06-22
申请号：US17768339
申请日：2020-10-09
发明人： Koichi SUGIHARA
CPC分类号： F02M26/72 , F02M26/54 , F02M26/68 , F16K27/029
摘要： This EGR valve system is provided with a valve assembly, and a plurality of housing adapters. The valve assembly is provided with a housing including a flow passage, a valve seat provided in the flow passage, a valve element provided in the flow passage in such a way as to be capable of seating against the valve seat, a valve shaft on which the valve element is provided, and a driving unit for driving the valve shaft. The housing adapters include assembly holes, inlet flow passages which communicate with the assembly holes, and outlet flow passages. One of the housing adapters is selectively combined with the valve assembly, the housing of the valve assembly is assembled in the assembly hole of the selected housing adapter. In this assembled state, the inlet flow passage communicates with an inlet port, and the outlet flow passage communicates with an outlet port.
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公开(公告)号：US20220389890A1
公开(公告)日：2022-12-08
申请号：US17774326
申请日：2020-10-26
发明人： Koichi SUGIHARA
摘要： An EGR valve device including a housing including a flow passage, a valve element that opens and closes the flow passage, a valve shaft to which the valve element is provided, and an outer housing including an assembly hole for the housing and other flow passages. When the housing is assembled in the assembly hole, an inlet and an outlet of the flow passage communicate with the other flow passages, and seal members are provided between the housing and the outer housing near the inlet and near the outlet. Assembly grooves are formed in the outer surface of the housing. A portion of each of the seal members that correspond to the assembly grooves has either an outer shape matching the shape of the assembly grooves or a shape formed by addition of a tightening margin to the outer shape.
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公开(公告)号：US20220316431A1
公开(公告)日：2022-10-06
申请号：US17640713
申请日：2020-08-18
发明人： Naoya SUZUKI , Koichi SUGIHARA
摘要： A poppet-type EGR valve includes: a housing that includes a flow passage; a valve seat; a valve body allowed to be seated on the valve seat; a valve shaft on which the valve body is provided at one end section thereof; and a drive unit reciprocally driving the valve shaft. The flow passage has an inlet and an outlet and includes a bent passage portion that is bent downstream from the valve seat in a direction perpendicular to the direction toward the inlet. The bent passage portion includes at least one of a section in which the passage area is constant and a section in which the passage area increases toward the downstream direction, and does not include a section in which the passage area decreases toward the downstream direction. In the section in which the passage area increases toward the downstream direction, the passage area changes gradually.
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公开(公告)号：US20220372938A1
公开(公告)日：2022-11-24
申请号：US17766048
申请日：2020-09-24
发明人： Koichi SUGIHARA
摘要： An EGR valve device equipped with: a housing which contains a flow passage; a valve element for opening and closing the flow passage; a valve shaft to which the valve element is provided; and a mating member which includes an assembly hole in which the housing is assembled, and also includes another flow passage. The flow passage is connected to the other flow passage while the housing is assembled in the assembly hole of the mating member, and a sealing member is provided in at least one location between the outer surface of the housing and the inner surface of the assembly hole. The sealing member includes a vibration-reducing part which has a vibration-reducing function and is formed from an elastic material, and also includes a sealing part which has a sealing function.
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公开(公告)号：US20220333708A1
公开(公告)日：2022-10-20
申请号：US17639873
申请日：2020-09-09
发明人： Koichi SUGIHARA , Mamoru YOSHIOKA , Shinji KAWAI , Takashi BESSHO , Koki YASUDA , Kaisho SO , Hirotaka FUKUTA , Mizuki KODAMA
摘要： An EGR valve includes: an inner housing including a flow passage; a valve element which opens and closes the flow passage; a valve shaft on which the valve element is provided; an outer housing in which the inner housing is assembled; and a drive unit which drives the valve shaft. The flow passage of the inner housing includes an inlet and an outlet. The outer housing includes an assembly hole and separate flow passages. When the inner housing is assembled in the assembly hole, the inlet and the outlet of the inner housing communicate with the separate flow passages of the outer housing; an inlet sealing member is provided between the inner housing and the outer housing to correspond to the periphery of the inlet; and an outlet sealing member is provided between the inner housing and the outer housing to correspond to the periphery of the outlet.
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