发明名称 |
Controlling vacuum level with a two-level vacuum system controller and adjustable speed drive |
摘要 |
<p>A low-energy-consuming apparatus and method for controlling vacuum levels in machine milking and other vacuum systems subject to air leakage utilizes in combination a high vacuum reserve, a low-vacuum end (pipelines), a dual vacuum controller positioned between the high-vacuum reserve and the low-vacuum end and an adjustable speed drive (ASD) motor on a vacuum pump to regulate the delivered air to match the air usage in the low-vacuum end. The dual vacuum controller senses vacuum disturbances in the low-vacuum end and adjusts the flow rate of air from the low-vacuum end to the high-vacuum reserve rather than using external air makeup, thus providing a controlled vacuum with minimum pressure variance and energy input. Energy savings and demand reduction of about 50 percent (50%) during milking are realized under the new system.</p> |
申请公布号 |
AU660441(B2) |
申请公布日期 |
1995.06.29 |
申请号 |
AU19910091590 |
申请日期 |
1991.12.06 |
申请人 |
CORNELL RESEARCH FOUNDATION, INC. |
发明人 |
FANGJIANG GUO;DANIEL J. ANESHANSLEY;DAVID C. LUDINGTON;ROGER A. PELLERIN |
分类号 |
A01J5/00;A01J5/04;F04B49/06;(IPC1-7):F04B49/06;A01J7/00 |
主分类号 |
A01J5/00 |
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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