公开(公告)号：US20130263830A1

公开(公告)日：2013-10-10

申请号：US13859091

申请日：2013-04-09

Applicant: DENSO CORPORATION

Inventor： Katsuya TORII ,  Ryo SANO

IPC: F02M25/07

CPC classification number: F02M26/54

Abstract: A rotational angle sensor for an EGR valve memorizes a correlated characteristic between hall voltage and output voltage. Hall voltage of the rotational angle sensor at a reference angle is matched to a boundary value for the hall voltage on a valve closing side, wherein the reference angle is set at such an angle, which is shifted by a predetermined angle in the valve closing side from an upper-limit angle of a flow-rate dead zone. A valve full-closing control is carried out in order that the hall voltage will coincide with the boundary value on the valve closing side. An actual value of the rotational angle coincides with a value, which is shifted from the reference angle in a valve closing or opening direction by a changing range decided by changing factors of a sensor side and/or a mechanical-part side.

Abstract translation: 用于EGR阀的旋转角度传感器存储霍尔电压​​和输出电压之间的相关特性。 旋转角度传感器的参考角的霍尔电压与关闭侧的霍尔电压的边界值相匹配，其中基准角被设定为在关闭侧偏移预定角度的角度 从流量死区的上限角度。 进行阀门全闭合控制，以使霍尔电压与阀关闭侧的边界值一致。 旋转角度的实际值与从关闭或打开方向的参考角度偏移由传感器侧和/或机械部分侧的变化因素决定的变化范围的值相一致。

公开(公告)号：US20130340731A1

公开(公告)日：2013-12-26

申请号：US13862794

申请日：2013-04-15

Applicant: DENSO CORPORATION

Inventor： Takashi KOBAYASHI ,  Katsuya TORII

IPC: F02M25/07 ,  F16K31/53

CPC classification number: F02M26/70 ,  F02M26/54 ,  F02M26/67 ,  F16K1/225 ,  F16K31/535

Abstract: A valve device has a valve that opens and closes a passage, and a cantilever bearing member rotatably supporting a rotating shaft of the valve. The cantilever bearing member has rolling-element bearings arranged in series in an axial direction of the rotating shaft. One of the rolling-element bearings located the closest to the passage has a rolling element, an inner race, an outer race and a seal portion. A space is defined between the inner race and the outer race to receive the rolling element. The seal portion made of rubber tightly seals the space on a side adjacent to the passage.

Abstract translation: 阀装置具有开闭通道的阀和可旋转地支撑阀的旋转轴的悬臂支承构件。 悬臂轴承部件具有沿着旋转轴的轴向串联布置的滚动元件轴承。 位于最靠近通道的滚动体轴承中的一个具有滚动元件，内圈，外圈和密封部。 在内座圈和外座圈之间限定一个空间以接收滚动元件。 由橡胶制成的密封部分紧密地密封靠近通道的一侧的空间。