flow meter

A flowmeter and fluid technology, applied in the direction of measuring flow/mass flow, liquid/fluid solid measurement, measuring devices, etc., can solve the problem of expensive gears, difficulty in small-scale implementation, strength, size, and use of magnetic gear flowmeters Restrictions and other issues to achieve the effect of easy production and reduced possibility

Active Publication Date: 2011-12-28
ECOLAB USA INC
View PDF5 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Oval gear and other positive displacement flowmeters utilizing a timing gear system have the disadvantage that the cover of the gear chamber must include one or more shaft holes for the shafts that couple the gears to the external timing gear
Complex mechanisms are required to seal the magnets inside the gears, making such gears expensive and difficult to implement on a small scale
[0006] Also, as metering resolution increases, the strength, size, and use of magnetic gear flowmeters are limited
For very small metering resolutions (e.g. less than 0.5ml), the use of magnetic gear flowmeters can be hindered by magnetic field interference, magnet size, and sensor location

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • flow meter
  • flow meter
  • flow meter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] The following detailed description is exemplary in nature and is not intended to limit the scope, applicability, or configuration of the invention in any way. Rather, the following description provides practical illustrations for implementing exemplary embodiments of the invention. Examples of structures, materials, dimensions, and manufacturing processes are provided for selected elements, and all other elements employ those known to those skilled in the art. Those skilled in the art will recognize that many of the examples provided have suitable alternatives available.

[0024] The term "fluid" is used herein to identify any continuous substance that tends to flow or conform to the contours of its container. The term fluid therefore includes both liquids and gases. A particularly interesting use of the invention is with liquids, especially liquid products and chemicals used in cleaning, washing, sanitizing, rinsing and the like.

[0025] figure 1 and 2 A view is ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

Embodiments of the invention provide devices and methods for measuring fluid volume. Devices according to some embodiments include a chamber, having a pair of gears rotatably mounted therewithin. Fluid flow through the chamber causes rotation of the gears, such that each rotation and/or partial rotation results in a known volume of the fluid passing through the chamber. An optical sensor positioned outside of the chamber, can view the rotating gears through a substantially transparent chamber wall. The optical sensor can view an optical characteristic of one or both of the gears, and based upon this data, fluid volume, flow rate, and/or flow direction can be determined. Devices and methods disclosed herein can provide for improved precision in fluid flow meter measurement. In addition, the devices and methods used herein can be more durable and easier to fabricate than previously known positive displacement flow meters.

Description

technical field [0001] The present invention relates to a volumetric fluid flow meter. More particularly, the present invention relates to a gear flow meter including an optical sensor, and methods of use of such a device. Background technique [0002] Positive displacement fluid measurement systems can be used to measure fluid flow or volume. For example, a dispensing system may use feedback from a positive displacement fluid flow meter to control the volume of fluid dispensed. Such a control system can be used in place of time control to more accurately dispense precise amounts of fluid. [0003] One type of positive displacement fluid measurement system is a gear flow meter, such as an oval gear or lobe flow meter. Traditional oval gear flow meters provide a pair of oval gears positioned within an oval gear chamber such that the gears rotate in unison. Lobe flowmeters provide a pair of lobe elements within a chamber that interlock and rotate about respective axes. In...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): G01F3/10G01F3/02G01F1/05G01D5/26
CPCG01F3/10
Inventor E·托克图夫C·欧文A·斯柯达V·斯洛博登R·梅休斯
Owner ECOLAB USA INC
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap