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公开(公告)号：US20160201610A1
公开(公告)日：2016-07-14
申请号：US14594886
申请日：2015-01-12
Applicant: DENSO International America, Inc. , DENSO CORPORATION
Inventor： Jude DAHL , Tadashi KOMIYAMA
IPC: F02M25/07
Abstract: A housing has an outer pipe. An inner pipe is accommodated in the outer pipe. The inner pipe defines an inner passage internally. The inner pipe defines an annular passage externally with the outer pipe. The inner pipe has through holes communicating the inner passage with the annular passage. The housing internally defines an EGR channel communicating with the annular passage. The EGR channel accommodates a deflector partitioning the EGR channel.
Abstract translation: 外壳有外管。 内管容纳在外管中。 内管内部限定内部通道。 内管在外管的外部形成环形通道。 内管具有将内部通道与环形通道连通的通孔。 壳体内部限定与环形通道连通的EGR通道。 EGR通道容纳分配EGR通道的偏转器。
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公开(公告)号：US20180238409A1
公开(公告)日：2018-08-23
申请号：US15752319
申请日：2016-09-19
Applicant: DENSO CORPORATION
Inventor： Akira HIGUCHI , Tohru SHIMIZU , Tadashi KOMIYAMA
CPC classification number: F16F1/025 , F02D9/1065 , F02D2009/0264 , F02D2009/0269 , F16F1/06 , F16F1/48 , F16F2234/00 , F16F2236/08 , F16F2238/024 , F16F2238/028
Abstract: A torsion spring that is used in a throttle valve device increasing and decreasing an opening degree of an intake passage or an exhaust passage of an internal-combustion engine includes: two coil springs connected with each other so that torsion directions are opposite from each other; and a hook disposed between the two coil springs. Of the two coil springs, one side spring arranged at one side in an axial direction biases a valve object to a closing side, and the other side spring arranged at the other side in the axial direction biases the valve object to an opening side. In at least one coil spring of the two coil springs, a dimension of a clearance between the at least one coil spring and the hook connected with each other is larger than an average value of clearances between coil turns of the at least one coil spring.
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