EP0528492A2
Expired / Lapsed
EP
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Automatic voltage control system and method for forced electrolyte flow batteries
Assignee: Magnavox Electronic Systems Co
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Filing: 1992-08-11
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Granted: —
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Expires: 2012-08-11
Abstract
Abstract Voltage control system and method which include voltage sensing and control circuitry (24) which measures the output voltage of a battery (12) and provides an output signal to a flow control valve (20) to cause the flow control valve (20) to reduce the rate of flow of electrolyte when the output voltage of the battery (12) is below a desired level and to cause the flow control valve (20) to increase the rate of flow of electrolyte when the output voltage of the battery (12) is above a desired level. The flow control valve (20) may be a binary controlled solenoid valve (22) responsive to a pulse-width-modulated signal from the sensing and control circuitry (24). <IMAGE>
Inventors
- 👤 Robert Warren Downing
- 👤 Donald Vincent Conte
- 👤 David Lester Ramson
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-07 23:34
CPC Classifications
H; H01; H01M; H01M8/00; H01M8/04; H01M8/04276; H01M50/00; H01M50/70; H01M50/77; H01M6/00; H01M6/50; Y; Y02; Y02E; Y02E60/00; Y02E60/30; Y02E60/50
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
110 words
An automatic voltage control system for a battery of the type having a flow of electrolyte therethrough, comprising: (a) flow control means to vary said flow of electrolyte through said battery; and (b) voltage sensing and control circuitry coupled to said flow control means to sense the level of output voltage of said battery and to cause said flow control means to reduce the rate of said flow of electrolyte when said output voltage of said battery is below a desired level and to cause said flow control means to increase the rate of said flow of electrolyte when said output voltage of said battery is above a desired level.
Claim 2
Dependent Claim
55 words
An automatic voltage control system, as defined in Claim 1, wherein said flow control means comprises a flow control valve having "on" and "off' positions and said voltage sensing and control circuitry inputs a pulse-width modulated signal to said flow control valve to selectively cycle said flow control valve between said "on" and "off" positions.
Claim 3
Dependent Claim
20 words
An automatic voltage control system, as defined in Claim 2, wherein said flow control valve comprises a solenoid operated valve.
Claim 4
Dependent Claim
36 words
An automatic voltage control system, as defined in Claim 2, wherein said flow control valve passes a selected minimum flow of said electrolyte to said battery when said flow control valve is in said "off' position.
Claim 5
Independent Claim
72 words
A method of automatically controlling the output voltage of a battery of the type having a flow of electrolyte therethrough, comprising: sensing the level of output voltage of said battery and reducing the rate of said flow of electrolyte when said output voltage of said battery is below a desired level and increasing the rate of said flow of electrolyte when said output voltage of said battery is above a desired level.
Claim 6
Dependent Claim
51 words
A method of automatically controlling the output voltage of a battery, as defined in Claim 5, wherein said reducing or increasing the rate of said flow of electrolyte includes providing a pulse-width-modulated signal to flow control means to cause said flow control means to selectively cycle between "on" and "off' positions.
Claim 7
Dependent Claim
28 words
A method of automatically controlling the output voltage of a battery, as defined in Claim 6, further comprising: providing as said flow control means a solenoid operated valve.
Claim 8
Dependent Claim
39 words
A method of automatically controlling the output voltage of a battery, as defined in Claim 6, further comprising: providing a selected minimum flow of said electrolyte to said battery when said flow control means is in said "off" position.
Claim 9
Dependent Claim
47 words
A method of automatically controlling the output voltage of a battery, as defined in Claim 6, further comprising: providing an intermittent flow of said electrolyte to said battery such as to assist in dislodging corrosion products and thus facilitating removal of said corrosion products from said battery.
References Cited (Backward Citations)
No citation records indexed.
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