Invention Grant
- Patent Title: Methods and devices used for automatically controlling speed of an expander
- Patent Title (中): 用于自动控制膨胀机速度的方法和装置
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Application No.: US13204671Application Date: 2011-08-06
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Publication No.: US08761958B2Publication Date: 2014-06-24
- Inventor: David Rossi
- Applicant: David Rossi
- Applicant Address: IT Florence
- Assignee: Nuovo Pignone S.p.A.
- Current Assignee: Nuovo Pignone S.p.A.
- Current Assignee Address: IT Florence
- Agency: Global Patent Operation
- Priority: ITCO2010A0044 20100811
- Main IPC: F16L55/04
- IPC: F16L55/04
Abstract:
A method of controlling a transition time through a speed range that is unsafe for an integrity of a second expander that receives a fluid flow from a first expander, by automatically biasing a speed of the second expander is provided. The method includes setting the speed of the second expander to be smaller than a current speed of the first expander. The method also includes setting the speed of the second expander to be larger than the current speed of the first expander, when the current speed of the first expander is within the bias application range, and the current speed of the second expander increases and is larger than the first speed value, or decreases and is larger than the second speed value.
Public/Granted literature
- US20120039724A1 METHODS AND DEVICES USED FOR AUTOMATICALLY CONTROLLING SPEED OF AN EXPANDER Public/Granted day:2012-02-16
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