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公开(公告)号：EP2846095B1
公开(公告)日：2018-03-21
申请号：EP13785053.3
申请日：2013-04-26
发明人： SUZUKI, Hiroyuki , SASSA, Akimitsu
CPC分类号： F02P19/028 , F23Q7/00 , F23Q7/001 , F23Q7/22 , F23Q2007/002 , G01L7/082 , G01M15/08
摘要： A coupling member 180 of a glow plug 100 includes a first bend 183 and a second bend 184 folded in an axis direction OD and a joint section 185 in a tapered shape configured to connect the first bend 183 with the second bend 184 and reduce the diameter toward a rear end side of a body portion. Accordingly, in a limited space formed between a housing 130 and a heater unit 150, this configuration increases the length of the coupling member 180, compared with a configuration without any bend folded in the axis direction OD. This results in decreasing the spring constant k of the coupling member 180 and suppressing extension of the coupling member 180 in the axis direction due to thermal expansion. This accordingly prevents an unnecessary load due to the extension of the coupling member 180 in the axis direction from being applied to a pressure sensor 160 via the heater unit 150 and improves the measurement accuracy of the pressure sensor 160.
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公开(公告)号：EP3608647A1
公开(公告)日：2020-02-12
申请号：EP19186824.9
申请日：2019-07-17
发明人： SASSA, Akimitsu
摘要： [Objective] To provide a pressure sensor capable of reducing an increase in temperature of a pressure detection element mounted on the front surface of a diaphragm portion.
[Means for Solution] A diaphragm member 140 has a diaphragm portion 144 on which a pressure detection element 150 is mounted, a first connection portion 141 connecting the diaphragm member 140 to a displacement member 130, a second connection portion 145 connecting the diaphragm member 140 to a housing 100, a first intermediate connection portion 142 connecting the first connection portion 141 and a radially inner portion of the diaphragm portion 144, and a second intermediate connection portion 143 connecting the second connection portion 145 and a radially outer portion of the diaphragm portion 144. The maximum thickness T1 of the first intermediate connection portion 142 and the minimum thickness T2 of the second intermediate connection portion 143 satisfy a relation of T1-
公开(公告)号：EP3584556A1
公开(公告)日：2019-12-25
申请号：EP19178845.4
申请日：2019-06-06
摘要： [Objective]
To provide a pressure sensor with heater which restrains the occurrence of an output error of a sensor element while reducing thermal load imposed on the sensor element.
[Means for Solution]
A pressure sensor with heater 10 includes a housing 100 having a seal portion 112 which reduces in diameter toward a forward side in the axial direction and which at least partially comes into contact with an attachment object body in attaching the pressure sensor with heater 10 to the attachment object body. A heater holder 140 is fixed to the housing 100 through a flange portion 145. A sensor element 150 is mounted on a rearward facing surface 141a of a body portion 141 of the heater holder 140. A relation of D1 ≥ L1 ≥ L2 holds among the outside diameter D1 of a rear end 112a of the seal portion 112, the axial length L1 from the rear end 112a of the seal portion 112 to a rearward facing surface 144a of the body portion 141, and the axial length L2 from the rear end 112a of the seal portion 112 to a rearward facing surface 145a of the flange portion 145.-
公开(公告)号：EP3062018B1
公开(公告)日：2020-07-08
申请号：EP16153665.1
申请日：2016-02-01
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公开(公告)号：EP3045817A1
公开(公告)日：2016-07-20
申请号：EP15202522.7
申请日：2015-05-13
IPC分类号： F23Q7/00
CPC分类号： H05B3/0042 , F23Q7/001 , F23Q2007/002 , G01L9/0051 , H05B3/0014
摘要： [Objective] To provide a glow plug with a combustion pressure sensor which senses combustion pressure on the basis of an axial movement of a ceramic heater and in which deterioration in the combustion pressure sensing performance is prevented as a result of prevention of impairment in easiness of deformation of a displacement member and easiness of displacement of the heater, which could otherwise result from adhesion and accumulation of soot on the displacement member, etc., the displacement member axially blocking a space between the inner circumferential surface of a forward end portion of the housing and the outer circumferential surface of the ceramic heater.
[Means for Solution] A heater 200 has a rear heat-generating element 260 formed of a resistance heat-generating element, adapted to generate heat through application of electricity, and provided in an axial region thereof between a forward end 136 of a housing and a rear end 315 of a displacement member 300 located rearward of the forward end 136, separately from a forward heat-generating element 205 provided at a forward end portion of the heater for accelerating ignition. Since the rear heat-generating element 260 removes the above-mentioned soot through burning, impairment in easiness of deformation of the displacement member 300 and easiness of displacement of the heater can be prevented accordingly, thereby preventing deterioration in sensing accuracy.摘要翻译： [目的]提供一种具有燃烧压力传感器的电热塞，该燃烧压力传感器基于陶瓷加热器的轴向移动来检测燃烧压力，并且其中防止了燃烧压力传感性能的劣化 位移构件的变形和加热器的容易移位，否则可能由于烟灰在位移构件上的粘附和积聚等而导致位移构件轴向地阻塞位于构件的前端部分的内周表面之间的空间 外壳和陶瓷加热器的外圆周表面。 [用于解决方案的手段]加热器200具有由电阻发热元件形成的后发热元件260，后发热元件260适于通过通电产生热量，并且在其轴向区域中设置在壳体的前端136和 位于前端136后方的位移部件300的后端315与设置在加热器的前端部处的用于加速点火的前端发热元件205分开。 由于后发热元件260通过燃烧去除上述烟灰，因此可以相应地防止位移构件300容易损坏变形容易和加热器容易移位，从而防止感测精度的恶化。
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公开(公告)号：EP2846095A1
公开(公告)日：2015-03-11
申请号：EP13785053.3
申请日：2013-04-26
发明人： SUZUKI, Hiroyuki , SASSA, Akimitsu
CPC分类号： F02P19/028 , F23Q7/00 , F23Q7/001 , F23Q7/22 , F23Q2007/002 , G01L7/082 , G01M15/08
摘要： A coupling member 180 of a glow plug 100 includes a first bend 183 and a second bend 184 folded in an axis direction OD and a joint section 185 in a tapered shape configured to connect the first bend 183 with the second bend 184 and reduce the diameter toward a rear end side of a body portion. Accordingly, in a limited space formed between a housing 130 and a heater unit 150, this configuration increases the length of the coupling member 180, compared with a configuration without any bend folded in the axis direction OD. This results in decreasing the spring constant k of the coupling member 180 and suppressing extension of the coupling member 180 in the axis direction due to thermal expansion. This accordingly prevents an unnecessary load due to the extension of the coupling member 180 in the axis direction from being applied to a pressure sensor 160 via the heater unit 150 and improves the measurement accuracy of the pressure sensor 160.
摘要翻译： 电热塞100的联接构件180包括沿轴线方向OD折叠的第一弯曲部183和第二弯曲部184以及构造成将第一弯曲部183与第二弯曲部184连接的锥形接合部185， 朝向主体部分的后端侧。 因此，与在壳体130和加热器单元150之间形成的有限空间中相比，不存在沿轴向方向OD弯曲的弯曲的构造，该构造增加了联接构件180的长度。 这导致联接构件180的弹簧常数k减小并且由于热膨胀而抑制联接构件180在轴向上的延伸。 这相应地防止了由于联接构件180在轴向上的延伸而引起的不必要的负荷经由加热器单元150被施加到压力传感器160并且提高了压力传感器160的测量精度。
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公开(公告)号：EP2799774B1
公开(公告)日：2018-10-10
申请号：EP12863258.5
申请日：2012-12-25
IPC分类号： F23Q7/00
CPC分类号： F02P19/028 , F23Q7/001 , F23Q2007/002 , G01L19/00 , G01M15/08
摘要： Provided is a ceramic glow plug equipped with a pressure sensor configured such that, even though a movable member having small heat transfer quantity is employed, deterioration in joining strength at a joint part between the movable member and a portion to which the movable member is attached is avoided, and good heat generation can be maintained over a long period of time. A heat-generating main portion P whose resistance is 75% of the total resistance of a ceramic heater 10 is located forward of the forward end of a holding sleeve 15. Thus, heat propagating rearward from the heat-generating main portion can be radiated from the ceramic heater to an engine head and a plug hole in the course of propagation to the joint part between the holding sleeve and the movable member. Therefore, the influence of heat on the joint part between the holding sleeve and the movable member can be reduced, whereby deterioration in joining strength can be restrained. As a result, there can be restrained damage to the ability to function as a pressure sensor resulting from deterioration in airtightness with respect to combustion gas.
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公开(公告)号：EP3062018A3
公开(公告)日：2016-11-02
申请号：EP16153665.1
申请日：2016-02-01
发明人： NISHIYUKI, Kenjiro , KAWAKATSU, Masahiro , HIROKAWA, Toshiki , HARADA, Hiroshi , SASSA, Akimitsu
摘要： [Objective] To improve the accuracy in detecting combustion pressure by a sensor element.
[Means for Solution] An elastic member of a combustion pressure sensor has a first tubular portion joined to a rod-like member; a first curved portion extending radially outward from a portion of the first tubular portion on the rear end side thereof; a second curved portion extending radially outward from a portion of the first curved portion on the outer circumferential side thereof; and a second tubular portion connected to a housing. The housing has a forward end portion which constitutes an opening portion, accommodates at least a portion of the first tubular portion, the first curved portion, the second curved portion, and at least a portion of the second tubular portion, and forms a gap between the forward end portion and at least a portion of an outer surface of the second tubular portion. The combustion pressure sensor further comprises a wall portion which is disposed within the forward end portion to be located on the forward end side of the second curved portion and overlaps with at least a portion of the second curved portion as viewed in the axial direction.-
10.发明公开
公开(公告)号：EP3062018A2
公开(公告)日：2016-08-31
申请号：EP16153665.1
申请日：2016-02-01
发明人： NISHIYUKI, Kenjiro , KAWAKATSU, Masahiro , HIROKAWA, Toshiki , HARADA, Hiroshi , SASSA, Akimitsu
摘要： [Objective] To improve the accuracy in detecting combustion pressure by a sensor element.
[Means for Solution] An elastic member of a combustion pressure sensor has a first tubular portion joined to a rod-like member; a first curved portion extending radially outward from a portion of the first tubular portion on the rear end side thereof; a second curved portion extending radially outward from a portion of the first curved portion on the outer circumferential side thereof; and a second tubular portion connected to a housing. The housing has a forward end portion which constitutes an opening portion, accommodates at least a portion of the first tubular portion, the first curved portion, the second curved portion, and at least a portion of the second tubular portion, and forms a gap between the forward end portion and at least a portion of an outer surface of the second tubular portion. The combustion pressure sensor further comprises a wall portion which is disposed within the forward end portion to be located on the forward end side of the second curved portion and overlaps with at least a portion of the second curved portion as viewed in the axial direction.摘要翻译： [目的]提高传感器元件检测燃烧压力的精度。 解决方案的燃烧压力传感器的弹性构件具有连接到杆状构件的第一管状部分; 从第一管状部分的后端侧的一部分径向向外延伸的第一弯曲部分; 第二弯曲部，其在第一弯曲部的外周侧的一部分的径向外侧延伸; 以及连接到壳体的第二管状部分。 壳体具有构成开口部分的前端部，容纳第一管状部分，第一弯曲部分，第二弯曲部分和至少一部分第二管状部分的至少一部分，并且在第二管状部分的至少一部分之间形成间隙 前端部分和第二管状部分的外表面的至少一部分。 燃烧压力传感器还包括壁部，其设置在前端部中，以位于第二弯曲部的前端侧，并且与轴向方向上的第二弯曲部的至少一部分重叠。
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