发明名称 |
Dosing system for cryogenic fluids - has piezoelectric dosing tap whose dia. is varied by applied voltage and gravity feed |
摘要 |
The cryogenic fluid is held in an insulated vessel (1), open to the top for pressure equalisation. The tap is operated by the piezo-electric element (9, 8) to vary the rate of outflow. No mechanical moving parts are required. The reservoir has a constant level top-up if long periods of dosage are required. The dosing is via current pulses or via a set current level applied to the pole pieces. A simple adjustable power supply drives the tap. ADVANTAGE - Precision dosing control, minimum risk of tap freezing.
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申请公布号 |
DE4030546(A1) |
申请公布日期 |
1992.04.02 |
申请号 |
DE19904030546 |
申请日期 |
1990.09.27 |
申请人 |
LINDE AG, 6200 WIESBADEN, DE |
发明人 |
SONNENTAG, MICHAEL, DIPL.-LEBENSMITTELING., 8000 MUENCHEN, DE |
分类号 |
B05B1/30;B65B31/00 |
主分类号 |
B05B1/30 |
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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