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 engagement

Info

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
Application number
Other languages
Italian (it)
Inventor
Stefano Negrini
Umberto Verza
Original Assignee
Casappa Spa
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 Casappa Spa filed Critical Casappa Spa
Priority to ITPR940029 priority Critical patent/IT1272826B/en
Publication of ITPR940029A0 publication Critical patent/ITPR940029A0/en
Priority to EP95830294A priority patent/EP0692633B1/en
Priority to ES95830294T priority patent/ES2229228T3/en
Priority to DE69533605T priority patent/DE69533605T2/en
Priority to US08/499,612 priority patent/US5624251A/en
Publication of ITPR940029A1 publication Critical patent/ITPR940029A1/en
Application granted granted Critical
Publication of IT1272826B publication Critical patent/IT1272826B/en

Links

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.
ITPR940029 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 IT1272826B (en)

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)

Also Published As

Publication number Publication date
ITPR940029A1 (en) 1996-01-14
ITPR940029A0 (en) 1994-07-14

Similar Documents

Publication Publication Date Title
JP3953030B2 (en) Fan idler pulley
IE900874L (en) Peristaltic pump
EP1647712A3 (en) Roller pump
EP0780573A3 (en) High pressure water pump system
EP1489337A3 (en) Planetary gear drive
ATE200655T1 (en) PEDAL CRANK DRIVE FOR A BICYCLE
IT1272826B (en) Cheaply mfd. low=noise gear pump - has mechanical force applied to drive shaft by Belleville washer loaded ball to ensure good tooth engagement
IT1282945B1 (en) Cheaply mfd. low=noise gear pump - has mechanical force applied to drive shaft by Belleville washer loaded ball to ensure good tooth engagement
DE3473330D1 (en) Transmission for use in motor vehicle
US5928101A (en) Differential gear mechanism
JPS57100659A (en) Magnetic tape device
EP1388452A3 (en) Vehicle wheel end assembly
EP1143167A3 (en) Toroidal continuously variable transmission
WO2003025409A1 (en) Pulley rotatingly supporting device
DE3571676D1 (en) Immersible motor pump unit
ES8107371A1 (en) Friction Gears
EP0881390A3 (en) Oil pump apparatus
SU1404708A1 (en) Planetary reduction gear
JPH0320590Y2 (en)
CN2199370Y (en) Cycloidal speed reducer with single end face contact pushing rod
JPS59208257A (en) Rotational speed reducing device
JPS5557743A (en) Reduction gear
RU93049553A (en) PLANETARY TRANSMISSION
JP3223367B2 (en) Continuously variable transmission
SU1610136A1 (en) Mechanical gearing

Legal Events

Date Code Title Description
0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19970731