CA2024083A1 - Positive displacement flowmeter - Google Patents

Positive displacement flowmeter

Info

Publication number
CA2024083A1
CA2024083A1 CA 2024083 CA2024083A CA2024083A1 CA 2024083 A1 CA2024083 A1 CA 2024083A1 CA 2024083 CA2024083 CA 2024083 CA 2024083 A CA2024083 A CA 2024083A CA 2024083 A1 CA2024083 A1 CA 2024083A1
Authority
CA
Canada
Prior art keywords
flowmeter
counting
measuring chamber
rotors
counting portion
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA 2024083
Other languages
French (fr)
Other versions
CA2024083C (en
Inventor
Yoshio Asanuma
Fumio Yokota
Hironari Tsuchiya
Yasuhiro Miyagawa
Hiroshi Fujii
Osamu Hayakawa
Koji Hotta
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Oval Engineering Co Ltd
Original Assignee
Oval Engineering Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Oval Engineering Co Ltd filed Critical Oval Engineering Co Ltd
Priority to CA 2024083 priority Critical patent/CA2024083C/en
Publication of CA2024083A1 publication Critical patent/CA2024083A1/en
Application granted granted Critical
Publication of CA2024083C publication Critical patent/CA2024083C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Measuring Volume Flow (AREA)

Abstract

A positive displacement flowmeter comprising a flowmeter portion including a pair of rotors rotatable in proportion to a fluid's flow in a measuring chamber and a counting portion for measuring a total flow by counting the rotor's rotations. It has many improvements. Firstly, the flowmeter is protected against the penetration of rain water into its counting portion. Furthermore, the counting portion housing is so constructed as to assure the easy mounting of an electric circuit and like components therein and also the possibility to control said circuit from the outside of the housing by use of reed switches and the like.
The flowmeter is improved not to transfer heat of a fluid of high temperature to the counting portion and, furthermore, to assure the easy mounting of rotors in the measuring chamber. Particularly, it is possible to provide high performance rotors mounted in the measuring chamber by using non-circular gears having a special tooth profile and made of special materials. Other various improvements are presented.
CA 2024083 1990-08-27 1990-08-27 Positive displacement flowmeter Expired - Lifetime CA2024083C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA 2024083 CA2024083C (en) 1990-08-27 1990-08-27 Positive displacement flowmeter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA 2024083 CA2024083C (en) 1990-08-27 1990-08-27 Positive displacement flowmeter

Publications (2)

Publication Number Publication Date
CA2024083A1 true CA2024083A1 (en) 1992-02-28
CA2024083C CA2024083C (en) 2000-06-20

Family

ID=4145826

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2024083 Expired - Lifetime CA2024083C (en) 1990-08-27 1990-08-27 Positive displacement flowmeter

Country Status (1)

Country Link
CA (1) CA2024083C (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11168883B2 (en) 2017-09-29 2021-11-09 Rosemount Aerospace Inc. Flame arrestor with fluid drainage capabilities

Also Published As

Publication number Publication date
CA2024083C (en) 2000-06-20

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