JPS55119995A - Submerged pump for aeration - Google Patents

Submerged pump for aeration

Info

Publication number
JPS55119995A
JPS55119995A JP2799079A JP2799079A JPS55119995A JP S55119995 A JPS55119995 A JP S55119995A JP 2799079 A JP2799079 A JP 2799079A JP 2799079 A JP2799079 A JP 2799079A JP S55119995 A JPS55119995 A JP S55119995A
Authority
JP
Japan
Prior art keywords
pump
partition
air chamber
chamber
oil chamber
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
JP2799079A
Other languages
Japanese (ja)
Inventor
Takashi Ito
Yoshihiro Onishi
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.)
Shinmaywa Industries Ltd
Original Assignee
Shin Meiva Industry 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 Shin Meiva Industry Ltd filed Critical Shin Meiva Industry Ltd
Priority to JP2799079A priority Critical patent/JPS55119995A/en
Publication of JPS55119995A publication Critical patent/JPS55119995A/en
Pending legal-status Critical Current

Links

Landscapes

  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

PURPOSE: To extend life of the seal between the air chamber and the oil chamber, by forming an air chamber between the oil chamber and the pump room and fitting a flexible ring in the partition between the air chamber and the oil chamber.
CONSTITUTION: The central portion of the partition 14 between the air chamber 5 and the oil chamber 4 is concaved in a suitable fashion, and the air chamber 5 is adapted to communicate with the pump room 6 via the rear vanes 7a mounted on the impeller 7, and, further, the one side of the peripheral portion of the air chamber 5 communicates with the ejector air intake room 12 through the intake pipe 16. A flexible ring 17 is formed in a cone shape with a central opening, and flexibly fitted on the pump shaft 2 at the central concave portion in the partition 14. This ring 17 rotates without contact with the partition 14 during the pump operation, but, while the pump is stopped, it is pressed on the partition 14 to be attached on it by the water pressure outside the pump that is loaded through the ejector main body 13 and the pump suction port 9, etc. Consequently the ring prevents the invasion of counter flow and lengthens life of the seal.
COPYRIGHT: (C)1980,JPO&Japio
JP2799079A 1979-03-09 1979-03-09 Submerged pump for aeration Pending JPS55119995A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2799079A JPS55119995A (en) 1979-03-09 1979-03-09 Submerged pump for aeration

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2799079A JPS55119995A (en) 1979-03-09 1979-03-09 Submerged pump for aeration

Publications (1)

Publication Number Publication Date
JPS55119995A true JPS55119995A (en) 1980-09-16

Family

ID=12236257

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2799079A Pending JPS55119995A (en) 1979-03-09 1979-03-09 Submerged pump for aeration

Country Status (1)

Country Link
JP (1) JPS55119995A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5042401A (en) * 1973-08-18 1975-04-17
JPS51106202A (en) * 1975-03-15 1976-09-21 Mitsubishi Petrochemical Co HONPU

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5042401A (en) * 1973-08-18 1975-04-17
JPS51106202A (en) * 1975-03-15 1976-09-21 Mitsubishi Petrochemical Co HONPU

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