专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JPH09217933A SELF-TEMPERATURE-CONTROL TYPE GLOW PLUG 失效
公开(公告)号：JPH09217933A
公开(公告)日：1997-08-19
申请号：JP5500797
申请日：1997-03-10
申请人： JIDOSHA KIKI CO
发明人： HATANAKA HIROJI , IISASA KAZUHISA
IPC分类号： F23Q7/00
摘要： PROBLEM TO BE SOLVED: To obtain a self-temperature-control type glow plug capable of being comparatively easily manufactured with high reliability and being made to exert a function as a fast heating type and an overshooting characteristic. SOLUTION: This glow plug is provided with a first resistor 10 functioning as a heating body, a second resistor 11 connected to one end thereof in series and made of a material having a positive temperature coefficient of resistance greater than that of the first resistor and a sheath 2 covering the first and second resistors 10, 11 by embedding the resistors in a heat-resisting insulating material powder 6. The sheath 2 is constituted of a small diameter portion 2a having a small sheath diameter for embedding the first resistor 10, a large diameter portion 2b having a large sheath diameter for embedding the second resistor 11 and a tapered portion 2c provided between the small diameter portion 2a and the large diameter portion 2b. The two resistors 10, 11 are connected in an overlapped manner in a wire diameter direction so as to reduce electric resistance and this connecting portion 12 is located to a position corresponding to the tapered portion of the sheath.

2. 发明专利

JPH05332539A SHEATHED HEATER AND MANUFACTURE THEREOF 失效
公开(公告)号：JPH05332539A
公开(公告)日：1993-12-14
申请号：JP16342392
申请日：1992-06-01
申请人： JIDOSHA KIKI CO
发明人： IISASA KAZUHISA
IPC分类号： F23Q7/00 , H05B3/48
摘要： PURPOSE:To electrically connect the end of an electrode rod to the rear end of a coiled heating wire in a sheath without consumable component by a welding method having excellent operability and running cost. CONSTITUTION:A projecting lens 21 of a laser welder 20 is positioned at a processing reference position L of connecting the rear end 12b of a coiled heating wire 12 to the end 17a of an electrode rod 17 by welding. Further, the end of the rod is positioned at the reference position. Then, the rear end of the wire is engaged with the end of the rod, and positioned thereat. Thereafter, the reference position is irradiated with the laser light from the lens in this assembled state to connect the rear end of the wire to the end of the rod by welding.

3. 发明专利

JPH0399122A SELF TEMPERATURE CONTROL TYPE GLOW PLUG 失效
公开(公告)号：JPH0399122A
公开(公告)日：1991-04-24
申请号：JP23274389
申请日：1989-09-11
申请人： JIDOSHA KIKI CO
发明人： HATANAKA HIROJI , IISASA KAZUHISA
IPC分类号： F23Q7/00
摘要： PURPOSE:To enable long time after glow by setting the size of the tip of a sheath where a first resistor is embedded to be smaller than that of the rear of the sheath where a second resistor is embedded, connecting both the resistors with a connection means having a smaller resistance value by way of a clearance provided between the both resistors. CONSTITUTION:An attempt is made to set a diameter DR of a sheath 2 in its tip where a first resistor 10, which is a heating body for the sheath 2, is embedded, to be smaller than a sheath diameter DB in its rear where a second resistor 11 is embedded in a self-temperature control type glow plug. A clearance GAP is provided between the first resistors 10 and the second resistor 11. The clearance must be at least larger than a sheath diameter DR in its tip where that the first resistor 10 is embedded. Both the resistors 10 and 11 are connected by way of a connection section 12 which is designed to reduce the resistance value in the clearance to substantially zero.

4. 发明专利

JPH06300262A SHEATHED GLOW PLUG AND MANUFACTURE THEREOF 失效
公开(公告)号：JPH06300262A
公开(公告)日：1994-10-28
申请号：JP10724993
申请日：1993-04-12
申请人： JIDOSHA KIKI CO
发明人： IISASA KAZUHISA , AOTA TAKASHI
IPC分类号： F23Q7/00
摘要： PURPOSE:To permit the series connection of a plurality of kinds of spiral heat- generating bodies by welding through a technique, in which working accuracy and the like are not requested, positioning such as coaxial property and the like are facilitated and simplified in the technique. CONSTITUTION:A sheath heater is formed of first and second spiral resistors 3, 4, having different positive resistance temperature coefficient and connected in series, and a sheath 2, in which the spiral resistor bodies 3, 14 are buried in heat resistant insulating powder. The connecting ends 20, 21 of the first and second spiral resistor bodies 3, 14 are formed so as to have the same outer diameter substantially and form a closely contacted wound part having smaller coil pitch than the other coil parts. The connecting ends are abutted against each other and are connected through welding such as laser welding or the like whereby the first and second spiral resistor bodies 3, 4 are connected in series.

5. 发明专利

JPH0618032A SHEATHED HEATER AND METHOD FOR ITS MANUFACTURE 失效
公开(公告)号：JPH0618032A
公开(公告)日：1994-01-25
申请号：JP20019192
申请日：1992-07-06
申请人： JIDOSHA KIKI CO
发明人： IISASA KAZUHISA , AOTA TAKASHI
IPC分类号： F23Q7/00
摘要： PURPOSE:To provide a sufficient space between a sheath and an electrode rod at the mouth of the sheath before swaging in order to prevent shorting and achieve high quality, automatization of the processing and assembling, and reduction in cost. CONSTITUTION:A sheathed heater 15 is assembled by introducing into a metal sheath 16 a heater coil 11 and the forward part of an electrode rod 17 and, while holding them in this state, by filling the space with a heat-resistant insulating powder 13. At the rear end of the sheath less thick with a smaller diameter at this part 30. In manufacturing a sheathed heater 15 the sheath 14 is filled with the heater coil 11, the electrode rod 17, and the heat-resistant insulating powder, followed by swaging.

6. 发明专利

JPH06109248A METHOD FOR MANUFACTURING SHEATH TYPE GLOW PLUG 失效
公开(公告)号：JPH06109248A
公开(公告)日：1994-04-19
申请号：JP28110592
申请日：1992-09-28
申请人： JIDOSHA KIKI CO
发明人： AOTA TAKASHI , IISASA KAZUHISA
IPC分类号： F23Q7/00
摘要： PURPOSE:To eliminate disadvantages such as wrinkle and non-uniform wall thickness at a part where a high reduction occurs by a method wherein a sheath having a small diameter at its extremity end is formed by sheath raw material of heat-resistant metallic material. CONSTITUTION:A cylindrical sheath raw material made of heat-resistant metallic material is formed as a substantial cylindrical sheath rough pipe 30 with only an extremity end opening 20a metered through a step-wise drawing work. The extremity end opening is applied as a machining reference in such a way that the extremity end of the sheath rough pipe may become a smaller diameter than that of a rear end side and then the sheath rough pipe is applied with a stepwise drawing work with a punch 50 and a die 51. With such an arrangement as above, its extremity end is made as a small diameter part and concurrently a stepped sheath rough pipe having a large diameter part at its rear end which is continuous in series through a tapered part is obtained. This sheath rough pipe is formed as the sheath for a sheath heater by applying a swaging machining at its outer circumference under a condition in which a resistor is buried and assembled in the heat-resistant insulating powder.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式