JPH0424022U - - Google Patents
Info
- Publication number
- JPH0424022U JPH0424022U JP6499590U JP6499590U JPH0424022U JP H0424022 U JPH0424022 U JP H0424022U JP 6499590 U JP6499590 U JP 6499590U JP 6499590 U JP6499590 U JP 6499590U JP H0424022 U JPH0424022 U JP H0424022U
- Authority
- JP
- Japan
- Prior art keywords
- magnet
- rotors
- casing
- measuring chamber
- rotor
- 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.)
- Pending
Links
- 239000002184 metal Substances 0.000 claims description 5
- 238000006073 displacement reaction Methods 0.000 claims description 4
- 125000006850 spacer group Chemical group 0.000 claims description 4
- 239000012530 fluid Substances 0.000 claims 1
- 230000002093 peripheral effect Effects 0.000 claims 1
Landscapes
- Measuring Volume Flow (AREA)
Description
第１図及び第３図は本考案の実施例に係り、第
１図は本実施例による駆動マグネツトの横断面図
、第２図は第１図に示す駆動マグネツトの縦断面
図、第３図は駆動マグネツトを金属カバーを外し
た状態で示す斜視図、第４図ないし第６図は従来
技術に係り、第４図は容積型流量計を示す縦断面
図、第５図は第４図の容積型流量計の駆動マグネ
ツトを金属カバーを設けた状態で示す横断面図、
第６図は第５図に示す駆動マグネツトの縦断面図
である。
１……ケーシング、２Ａ……計量室、６，７…
…回転子、８、９……回転軸、１９……従動マグ
ネツト、３１……駆動マグネツト、３１Ａ，３１
Ｂ……マグネツト片、３１Ｃ，３１Ｄ……各スペ
ーサ片、３２……金属カバー。
1 and 3 relate to an embodiment of the present invention, in which FIG. 1 is a cross-sectional view of a drive magnet according to this embodiment, FIG. 2 is a longitudinal sectional view of the drive magnet shown in FIG. 1, and FIG. 4 is a perspective view showing the drive magnet with the metal cover removed, FIGS. 4 to 6 relate to the prior art, FIG. 4 is a vertical sectional view showing a positive displacement flowmeter, and FIG. A cross-sectional view showing a driving magnet of a positive displacement flowmeter with a metal cover installed;
FIG. 6 is a longitudinal sectional view of the drive magnet shown in FIG. 5. 1...Casing, 2A...Measuring chamber, 6,7...
... Rotor, 8, 9 ... Rotating shaft, 19 ... Driven magnet, 31 ... Drive magnet, 31A, 31
B...Magnet piece, 31C, 31D...Each spacer piece, 32...Metal cover.
Claims (1)
ーシングと、該ケーシング内に形成された計量室
と、該計量室内に回転可能に配設された一対の回
転子と、前記ケーシングから計量室内に延設され
、該各回転子を回転可能に支持する２本の回転軸
と、該各回転軸のうち少なくとも一方の回転子に
設けられ、該回転子とともに回転する駆動マグネ
ツトと、該駆動マグネツトによつて回転駆動され
るように前記一方の回転軸内に設けられた従動マ
グネツトとからなる容積型流量計において、前記
駆動マグネツトは、複数のマグネツト片とスペー
サ片とを交互に配設して筒状体とし、該各マグネ
ツト片とスペーサ片とからなる筒状体の内周面、
外周面を金属カバーで覆い、前記各スペーサ片の
熱膨張率を金属カバーの熱膨張率よりも大きく設
定したことを特徴とする容積型流量計。 A casing provided in the middle of a supply pipe for supplying fluid, a measuring chamber formed within the casing, a pair of rotors rotatably disposed within the measuring chamber, and a rotor extending from the casing into the measuring chamber. two rotating shafts that are provided and rotatably support each of the rotors; a drive magnet that is provided on at least one of the rotors and rotates together with the rotor; and a drive magnet that rotates together with the rotor. In the positive displacement flowmeter, the drive magnet is formed into a cylindrical shape by alternately arranging a plurality of magnet pieces and spacer pieces. an inner circumferential surface of a cylindrical body consisting of each magnet piece and a spacer piece;
1. A positive displacement flowmeter characterized in that an outer peripheral surface is covered with a metal cover, and the coefficient of thermal expansion of each of the spacer pieces is set to be larger than the coefficient of thermal expansion of the metal cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6499590U JPH0424022U (en) | 1990-06-20 | 1990-06-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6499590U JPH0424022U (en) | 1990-06-20 | 1990-06-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0424022U true JPH0424022U (en) | 1992-02-27 |
Family
ID=31596428
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6499590U Pending JPH0424022U (en) | 1990-06-20 | 1990-06-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0424022U (en) |
-
1990
- 1990-06-20 JP JP6499590U patent/JPH0424022U/ja active Pending
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