发明名称 |
TIRE PRESSURE MONITORING DEVICES |
摘要 |
A low tire pressure monitoring device (20) that is provided within a tire valve wire stem (210) and methods of using the same. The monitoring device comprises a counter-pressure chamber (21), a flexible membrane (36), a contact member, counter-pressure chamber pin (230), a PC board (29), and a means for emitting a signal. The monitoring device is calibrated by trapping the tire's initial air pressure in the counter-pressure chamber. The monitoring device (20) monitors the pressure differential between the counter-pressure chamber (21) and the tire. When the pressure differential between the pressure in the counter-pressure chamber and the pressure within the tire exceeds a predetermined maximum pressure differential, the flexible membrane (36) is deflected so that an electrical circuit is completed and a warning signal is emitted. |
申请公布号 |
WO02081236(A1) |
申请公布日期 |
2002.10.17 |
申请号 |
WO2002US05415 |
申请日期 |
2002.02.20 |
申请人 |
LUNDQVIST, TORBJOERN, BOSON;GRONDAHL, CLAES, GOERAN |
发明人 |
LUNDQVIST, TORBJOERN, BOSON;GRONDAHL, CLAES, GOERAN |
分类号 |
G01L17/00;B60C23/00;B60C23/02;B60C23/04;B60C29/04;G01L27/00;(IPC1-7):B60C23/00 |
主分类号 |
G01L17/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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