JPS5473305A - Positive displacement rotary machine - Google Patents
Positive displacement rotary machineInfo
- Publication number
- JPS5473305A JPS5473305A JP14029277A JP14029277A JPS5473305A JP S5473305 A JPS5473305 A JP S5473305A JP 14029277 A JP14029277 A JP 14029277A JP 14029277 A JP14029277 A JP 14029277A JP S5473305 A JPS5473305 A JP S5473305A
- Authority
- JP
- Japan
- Prior art keywords
- tooth tip
- arcs
- radius
- base
- tooth
- 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
Landscapes
- Rotary Pumps (AREA)
- Measuring Volume Flow (AREA)
Abstract
PURPOSE: To smooth the rotation and operate cutting processes with ease and accuracy by forming a smooth connecting through involute curve of the arcs made by each tooth tip and tooth base of teeth which are set on one set of rotor periphery.
CONSTITUTION: The formation of teeth of rotors 3, 4 is such that a tooth tip is composed of an arc BC with the radius r and a point A as its center on a circumference of a pich circle 5 with the radius R, tooth bases are composed of arcs EF, E'F' with the radius r and points D, D' as their centers on the circumference of the pitch circle, a forth of π away from the point A, and the tooth tip and base are connected with involute curve CE, BE', thus gears 3a and 4a being in mesh each on involute curve. The arcs of tooth tip and base ensures smooth rotation, allowing between them no space which may cause noise and abnormal vibration. Also, teeth can easily be cut with a tool that has an arc and a semi-circle arc with the same radius as that of tooth tip and base, the arcs being connected with straight lines.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14029277A JPS5473305A (en) | 1977-11-22 | 1977-11-22 | Positive displacement rotary machine |
| US05/896,671 US4210410A (en) | 1977-11-17 | 1978-04-14 | Volumetric type flowmeter having circular and involute tooth shape rotors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14029277A JPS5473305A (en) | 1977-11-22 | 1977-11-22 | Positive displacement rotary machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5473305A true JPS5473305A (en) | 1979-06-12 |
Family
ID=15265387
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14029277A Pending JPS5473305A (en) | 1977-11-17 | 1977-11-22 | Positive displacement rotary machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5473305A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4938672A (en) * | 1989-05-19 | 1990-07-03 | Excet Corporation | Screw rotor lobe profile for simplified screw rotor machine capacity control |
| JP2009024694A (en) * | 2008-05-16 | 2009-02-05 | Katsuo Kanai | Rotary engine |
| WO2009110108A1 (en) * | 2008-03-03 | 2009-09-11 | 株式会社オーバル | Volumetric flowmeter and helical gear |
| JP2011524985A (en) * | 2008-06-20 | 2011-09-08 | グラコ ミネソタ インコーポレーテッド | Involute gear teeth for fluid measuring devices |
| JP2013253636A (en) * | 2012-06-06 | 2013-12-19 | Taiyo Kikai Kogyo Kk | Gear and gear design method |
-
1977
- 1977-11-22 JP JP14029277A patent/JPS5473305A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4938672A (en) * | 1989-05-19 | 1990-07-03 | Excet Corporation | Screw rotor lobe profile for simplified screw rotor machine capacity control |
| WO2009110108A1 (en) * | 2008-03-03 | 2009-09-11 | 株式会社オーバル | Volumetric flowmeter and helical gear |
| US8425212B2 (en) | 2008-03-03 | 2013-04-23 | Oval Corporation | Positive displacement flowmeter and helical gear |
| JP2009024694A (en) * | 2008-05-16 | 2009-02-05 | Katsuo Kanai | Rotary engine |
| JP2011524985A (en) * | 2008-06-20 | 2011-09-08 | グラコ ミネソタ インコーポレーテッド | Involute gear teeth for fluid measuring devices |
| JP2013253636A (en) * | 2012-06-06 | 2013-12-19 | Taiyo Kikai Kogyo Kk | Gear and gear design method |
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