JPS55148997A - Canned motor pump - Google Patents

Canned motor pump

Info

Publication number
JPS55148997A
JPS55148997A JP5567379A JP5567379A JPS55148997A JP S55148997 A JPS55148997 A JP S55148997A JP 5567379 A JP5567379 A JP 5567379A JP 5567379 A JP5567379 A JP 5567379A JP S55148997 A JPS55148997 A JP S55148997A
Authority
JP
Japan
Prior art keywords
rotor
section
interior
pump
lubricate
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
Application number
JP5567379A
Other languages
Japanese (ja)
Inventor
Toshiaki Tsutsui
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nikkiso Co Ltd
Original Assignee
Nikkiso Co Ltd
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 Nikkiso Co Ltd filed Critical Nikkiso Co Ltd
Priority to JP5567379A priority Critical patent/JPS55148997A/en
Publication of JPS55148997A publication Critical patent/JPS55148997A/en
Pending legal-status Critical Current

Links

Landscapes

  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

PURPOSE: To improve the efficiency of cooling and lubricating the interior of a motor section by providing in a rear rotor chamber an auxiliary impeller mounted on a rotor and communicating to a pump portion through a circulation pipe.
CONSTITUTION: A rear rotor chamber 36 is provided in the interior with an auxiliary impeller 40 mounted on a rotor shaft 24 and communicating to a discharge pipe portion 22 of a pump section 10 through a liquid passing hole 42 and circulation pipe 38. Thus, treated liquid discharged from a pump section 10 is introduced into a rear rotor section 36 to lubricate a rear bearing 32, while passing through a gap between a stator 26 and rotor 28 to cool a motor section 12 and further flowing into a front rotor chamber 34 to lubricate a front bearing 30 so that the efficiency of cooling and lubricating the interior of the motor section 12 can be improved.
COPYRIGHT: (C)1980,JPO&Japio
JP5567379A 1979-05-09 1979-05-09 Canned motor pump Pending JPS55148997A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5567379A JPS55148997A (en) 1979-05-09 1979-05-09 Canned motor pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5567379A JPS55148997A (en) 1979-05-09 1979-05-09 Canned motor pump

Publications (1)

Publication Number Publication Date
JPS55148997A true JPS55148997A (en) 1980-11-19

Family

ID=13005386

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5567379A Pending JPS55148997A (en) 1979-05-09 1979-05-09 Canned motor pump

Country Status (1)

Country Link
JP (1) JPS55148997A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3045146A1 (en) * 1980-11-29 1982-07-01 Nikkiso Co., Ltd., Tokyo Motorised centrifugal liq. pump unit - has auxiliary second stage pump circulating liq. to cool and lubricate motor without evaporation
JPS58122798U (en) * 1982-02-15 1983-08-20 株式会社荏原製作所 canned motor pump
US4616980A (en) * 1983-12-06 1986-10-14 Crane Co. Canned motor pumps pressurized recirculation system
US4958988A (en) * 1985-09-26 1990-09-25 Ormat Turbines, Ltd. Motor driven pump for pumping viscous solutions
US5324179A (en) * 1991-11-21 1994-06-28 Nikkiso Co., Ltd. Motor pump with a treating liquid circulation system

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS544081U (en) * 1977-06-08 1979-01-11

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS544081U (en) * 1977-06-08 1979-01-11

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3045146A1 (en) * 1980-11-29 1982-07-01 Nikkiso Co., Ltd., Tokyo Motorised centrifugal liq. pump unit - has auxiliary second stage pump circulating liq. to cool and lubricate motor without evaporation
JPS58122798U (en) * 1982-02-15 1983-08-20 株式会社荏原製作所 canned motor pump
US4616980A (en) * 1983-12-06 1986-10-14 Crane Co. Canned motor pumps pressurized recirculation system
US4958988A (en) * 1985-09-26 1990-09-25 Ormat Turbines, Ltd. Motor driven pump for pumping viscous solutions
US5324179A (en) * 1991-11-21 1994-06-28 Nikkiso Co., Ltd. Motor pump with a treating liquid circulation system

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