会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 1. 发明授权
    • Pressure transducer for determining the pressure in the combustion
chamber of an internal combustion engine
    • 用于确定内燃机燃烧室内压力的压力传感器
    • US5095741A
    • 1992-03-17
    • US576409
    • 1990-09-07
    • Ingo BartigRainer BurkelHansjoachim MamischWinfried Moser
    • Ingo BartigRainer BurkelHansjoachim MamischWinfried Moser
    • G01L9/08F02B3/06F02B77/08G01L9/00G01L23/10G01L23/22H01T13/40
    • H01T13/40F02B77/08G01L23/10G01L23/22G01L9/008F02B3/06Y10S73/04
    • In a pressure transducer (11), the diaphragm (14) is fastened at the front side of the housing (10) facing the combustion chamber of an internal combustion engine by weld connections. The pressure acting on the diaphragm (14) is transmitted via the plunger (16) to a sensor block (18) including a plurality of piezoelectrically acting crystals (19, 20). The quartz disks (19, 20) are glued together with one another and with an intermediate electrode (21) as well as with the housing (10) of the pressure transducer (11) by a conducting glue. The plunger (14), the abutment (23) and the piezoelectrically acting crystals (19, 20) are connected in the housing (10) so that force transmission to the crystals (19, 20) occurs without mechanical pretensioning. The pressure transducer (11) is virtually free of dynamic temperature errors and enables a relatively exact determination of the pressure curve with respect to time in the combustion chamber of an internal combustion engine in long-term operation.
    • PCT No.PCTDE / 89/00086 Sec。 371 1990年9月7日第 102(e)1990年9月7日PCT PCT 1989年2月15日PCT公布。 出版物WO89 / 09384 日期为1989年10月5日。在压力传感器(11)中,隔膜(14)通过焊接连接紧固在面向内燃机的燃烧室的壳体(10)的前侧。 作用在隔膜(14)上的压力通过柱塞(16)传递到包括多个压电作用晶体(19,20)的传感器块(18)。 石英盘(19,20)通过导电胶将彼此和中间电极(21)以及压力传感器(11)的壳体(10)粘合在一起。 柱塞(14),支座(23)和压电作用晶体(19,20)连接在壳体(10)中,使得在没有机械预张紧的情况下,向晶体(19,20)的力传递。 压力传感器(11)实际上没有动态温度误差,并且能够在长期运行中相对精确地确定内燃机的燃烧室中的时间。