IT1272826B - Cheaply mfd. low=noise gear pump - has mechanical force applied to drive shaft by Belleville washer loaded ball to ensure good tooth engagement - Google Patents
Cheaply mfd. low=noise gear pump - has mechanical force applied to drive shaft by Belleville washer loaded ball to ensure good tooth engagementInfo
- Publication number
- IT1272826B IT1272826B ITPR940029A IT1272826B IT 1272826 B IT1272826 B IT 1272826B IT PR940029 A ITPR940029 A IT PR940029A IT 1272826 B IT1272826 B IT 1272826B
- Authority
- IT
- Italy
- Prior art keywords
- drive shaft
- low
- gear pump
- mfd
- cheaply
- Prior art date
Links
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 238000005086 pumping Methods 0.000 abstract 1
Landscapes
- Details And Applications Of Rotary Liquid Pumps (AREA)
- Rotary Pumps (AREA)
Abstract
The low-noise gear pump comprises a central body (2) with conventional end covers which has two bores housing two gears (3) and (4) in constant mesh. A drive shaft (5) and driven shaft run on bearings (7) set into the pump body. Two radial bores (12) each house a Belleville spring (13) and a ball (14) which is thus caused to bear onto the peripheral surface of the shaft (5). The mechanical loading serves to ensure continuous contact between the teeth of the gear wheels while pumping.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITPR940029 IT1272826B (en) | 1994-07-14 | 1994-07-14 | Cheaply mfd. low=noise gear pump - has mechanical force applied to drive shaft by Belleville washer loaded ball to ensure good tooth engagement |
EP95830294A EP0692633B1 (en) | 1994-07-14 | 1995-07-07 | A gear pump |
ES95830294T ES2229228T3 (en) | 1994-07-14 | 1995-07-07 | GEAR PUMP. |
DE69533605T DE69533605T2 (en) | 1994-07-14 | 1995-07-07 | gear pump |
US08/499,612 US5624251A (en) | 1994-07-14 | 1995-07-07 | Gear pump |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITPR940029 IT1272826B (en) | 1994-07-14 | 1994-07-14 | Cheaply mfd. low=noise gear pump - has mechanical force applied to drive shaft by Belleville washer loaded ball to ensure good tooth engagement |
Publications (3)
Publication Number | Publication Date |
---|---|
ITPR940029A0 ITPR940029A0 (en) | 1994-07-14 |
ITPR940029A1 ITPR940029A1 (en) | 1996-01-14 |
IT1272826B true IT1272826B (en) | 1997-06-30 |
Family
ID=11395897
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ITPR940029 IT1272826B (en) | 1994-07-14 | 1994-07-14 | Cheaply mfd. low=noise gear pump - has mechanical force applied to drive shaft by Belleville washer loaded ball to ensure good tooth engagement |
Country Status (1)
Country | Link |
---|---|
IT (1) | IT1272826B (en) |
-
1994
- 1994-07-14 IT ITPR940029 patent/IT1272826B/en active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
ITPR940029A1 (en) | 1996-01-14 |
ITPR940029A0 (en) | 1994-07-14 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
0001 | Granted | ||
TA | Fee payment date (situation as of event date), data collected since 19931001 |
Effective date: 19970731 |