JPS57203891A - Tube pump - Google Patents
Tube pumpInfo
- Publication number
- JPS57203891A JPS57203891A JP8772381A JP8772381A JPS57203891A JP S57203891 A JPS57203891 A JP S57203891A JP 8772381 A JP8772381 A JP 8772381A JP 8772381 A JP8772381 A JP 8772381A JP S57203891 A JPS57203891 A JP S57203891A
- Authority
- JP
- Japan
- Prior art keywords
- fluid
- tube
- rollers
- guide plate
- discharge side
- 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
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2/00—Rotary-piston machines or pumps
- F04C2/02—Rotary-piston machines or pumps of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
- F04C2/063—Rotary-piston machines or pumps of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents with coaxially-mounted members having continuously-changing circumferential spacing between them
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
Abstract
PURPOSE:To prevent occurrence of pulsation of fluid flow due to backflow of fluid to be conveyed, by making rollers travel along a guide plate having a contour constituted by straight sections and arcuate sections connected to each other, and detaching the rollers away from a tube gradually along the straight contour section of the guide plate on the discharge side of the pump. CONSTITUTION:Since arrangement is such that the travelling speed of rollers 3 at straight sections 6b of a guide plate 6 is lower than that at an arcuate section 6al, the pressure of fluid in a tube 2 between a preceding roller 3-1 and a succeeding roller 3-2 is increased by the above difference of the travelling speed of the rollers before the tube 2 is opened, so that backflow of high-pressure fluid on the discharge side into the tube 2, due to the rising of fluid pressure on the discharge side at the time of discharging fluid, can be prevented. At the same time, it is prevented that the amount of fluid equal to the volume of the tube 2 confined between the above two rollers flows back into the tube 2 when the rollers 3 are detached gradually away from the tube 2. Thus, it is enabled to prevent occurrence of pulsation of the discharged fluid.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8772381A JPS57203891A (en) | 1981-06-08 | 1981-06-08 | Tube pump |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8772381A JPS57203891A (en) | 1981-06-08 | 1981-06-08 | Tube pump |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57203891A true JPS57203891A (en) | 1982-12-14 |
JPS6211198B2 JPS6211198B2 (en) | 1987-03-11 |
Family
ID=13922825
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8772381A Granted JPS57203891A (en) | 1981-06-08 | 1981-06-08 | Tube pump |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57203891A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5057081A (en) * | 1990-06-15 | 1991-10-15 | Sherwood Medical Company | Peristaltic infusion device |
US5127908A (en) * | 1990-06-15 | 1992-07-07 | Sherwood Medical Company | Peristaltic infusion device |
US5133650A (en) * | 1990-06-15 | 1992-07-28 | Sherwood Medical Company | Infusion device rotor shield |
US5147312A (en) * | 1990-06-15 | 1992-09-15 | Sherwood Medical Company | Peristaltic infusion device drip chamber yoke |
US5158528A (en) * | 1990-06-15 | 1992-10-27 | Sherwood Medical Company | Peristaltic infusion device and charger unit |
US5181842A (en) * | 1990-06-15 | 1993-01-26 | Sherwood Medical Company | Peristaltic infusion device |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63177981U (en) * | 1987-05-11 | 1988-11-17 |
-
1981
- 1981-06-08 JP JP8772381A patent/JPS57203891A/en active Granted
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5057081A (en) * | 1990-06-15 | 1991-10-15 | Sherwood Medical Company | Peristaltic infusion device |
US5127908A (en) * | 1990-06-15 | 1992-07-07 | Sherwood Medical Company | Peristaltic infusion device |
US5133650A (en) * | 1990-06-15 | 1992-07-28 | Sherwood Medical Company | Infusion device rotor shield |
US5147312A (en) * | 1990-06-15 | 1992-09-15 | Sherwood Medical Company | Peristaltic infusion device drip chamber yoke |
US5158528A (en) * | 1990-06-15 | 1992-10-27 | Sherwood Medical Company | Peristaltic infusion device and charger unit |
US5181842A (en) * | 1990-06-15 | 1993-01-26 | Sherwood Medical Company | Peristaltic infusion device |
Also Published As
Publication number | Publication date |
---|---|
JPS6211198B2 (en) | 1987-03-11 |
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