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1. US20080307897 - Liquid supply measuring apparatus

Office United States of America
Application Number 11658689
Application Date 21.07.2005
Publication Number 20080307897
Publication Date 18.12.2008
Grant Number 7712383
Grant Date 11.05.2010
Publication Kind B2
IPC
G01F 1/05
GPHYSICS
01MEASURING; TESTING
FMEASURING VOLUME, VOLUME FLOW, MASS FLOW, OR LIQUID LEVEL; METERING BY VOLUME
1Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through the meter in a continuous flow
05by using mechanical effects
CPC
G01F 15/14
GPHYSICS
01MEASURING; TESTING
FMEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
15Details of, or accessories for, apparatus of the preceding groups insofar as such details or appliances are not adapted to particular types of such apparatus
14Casings, e.g. of special material
G01F 1/115
GPHYSICS
01MEASURING; TESTING
FMEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
1Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through the meter in a continuous flow
05by using mechanical effects
10using rotating vanes with axial admission
115with magnetic or electromagnetic coupling to the indicating device
G01F 7/00
GPHYSICS
01MEASURING; TESTING
FMEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
7Volume-flow measuring devices with two or more measuring ranges; Compound meters
G01F 15/0755
GPHYSICS
01MEASURING; TESTING
FMEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
15Details of, or accessories for, apparatus of the preceding groups insofar as such details or appliances are not adapted to particular types of such apparatus
07Integration to give total flow, e.g. using mechanically-operated integration mechanisms
075using electrically operated integrating means
0755involving digital counting
Applicants AP2U.Net Ltd.
Inventors Peleg Dani
Agents Ladas &; Parry, LLP
Priority Data 163208 26.07.2004 IL
Title
(EN) Liquid supply measuring apparatus
Abstract
(EN)

A liquid supply measuring apparatus is disclosed. The provided apparatus is comprised of a housing to be serially installed to a liquid passage in a way that the supplying liquid passes through the housing; a turbine, the turbine is installed inside the housing, wherein the turbine is spin by the passing liquid; a generator, the generator is pivotally or geared joined to the turbine and supplies electrical power according to the turbine's spin; and a controller, capable to calculate the supplied liquid in a way of integrating the supplied electrical power in a time sequence. According to a preferred embodiment the liquid supply measuring apparatus is provided, wherein the housing is separated into a first and second liquid passage and having a large turbine for high flow liquid and small turbine for low flow liquid—both are connected to generators—wherein the large turbine is located in the first passage and the small turbine is located in the second passage and wherein the first passage has a valve that enables or disables liquid to pass through the passage according to a predetermined criteria and wherein the criteria can be, inter alia, pressure differences or a command from the controller. By another preferred embodiment of the present invention it is provided the liquid supply measuring apparatus, wherein the valve is closed in a low flow of liquid through the apparatus, and is opened when the flow is rising over a predetermined threshold.

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