JPS5681296A - Pump with inducer - Google Patents

Pump with inducer

Info

Publication number
JPS5681296A
JPS5681296A JP15803079A JP15803079A JPS5681296A JP S5681296 A JPS5681296 A JP S5681296A JP 15803079 A JP15803079 A JP 15803079A JP 15803079 A JP15803079 A JP 15803079A JP S5681296 A JPS5681296 A JP S5681296A
Authority
JP
Japan
Prior art keywords
inducer
guide vanes
circumference
velocity
rotation
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
JP15803079A
Other languages
Japanese (ja)
Inventor
Sumio Sudo
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP15803079A priority Critical patent/JPS5681296A/en
Publication of JPS5681296A publication Critical patent/JPS5681296A/en
Pending legal-status Critical Current

Links

Landscapes

  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

PURPOSE: To reduce vibrations and noises caused by cavitation by providing the plural number of guide vanes on the circumference of a flow passage upstream an inducer, which give preturning in the direction of inducer rotation to flows introduced into the inducer in order to reduce relative velocities.
CONSTITUTION: The plural number of guide vanes 5 are provided on the circumference of a flow passage with a high relative velocity formed by a casing 4 located upstreams the inducer 2 in order to give preturnings in the direction of inducer rotation to flows introduced into the inducer 2. The flowing state in the circumference of the entrance of the inducer 2 is shown by broken lines for a case without guide vanes 5 and by solid lines for a case with guide vanes 5 as illustrated. An actual velocity C1' is inclined as locking like C1 in the direction of inducer rotation due to existence of guide vanes 5, and a relative velocity W1' is reduced to W1. Thereby, vibrations and noises caused by cavitation in this dred can be reduced. "u1 shows the circumferential velocity of the inducer 2.
COPYRIGHT: (C)1981,JPO&Japio
JP15803079A 1979-12-07 1979-12-07 Pump with inducer Pending JPS5681296A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15803079A JPS5681296A (en) 1979-12-07 1979-12-07 Pump with inducer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15803079A JPS5681296A (en) 1979-12-07 1979-12-07 Pump with inducer

Publications (1)

Publication Number Publication Date
JPS5681296A true JPS5681296A (en) 1981-07-03

Family

ID=15662731

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15803079A Pending JPS5681296A (en) 1979-12-07 1979-12-07 Pump with inducer

Country Status (1)

Country Link
JP (1) JPS5681296A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62261699A (en) * 1986-04-30 1987-11-13 ビーダブリュー／アイピー・インターナショナル・インコーポレーテッド Fluid pressure machine, particularly, centrifugal pump
JPH07301195A (en) * 1994-05-06 1995-11-14 Ingersoll Rand Co Method and equipment for passively damping flow disturbance in centrifugal compressor
KR100302975B1 (en) * 1997-11-28 2001-09-22 윌리엄 더블유. 하벨트 Discharge vanes for axial fans

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62261699A (en) * 1986-04-30 1987-11-13 ビーダブリュー／アイピー・インターナショナル・インコーポレーテッド Fluid pressure machine, particularly, centrifugal pump
JPH07301195A (en) * 1994-05-06 1995-11-14 Ingersoll Rand Co Method and equipment for passively damping flow disturbance in centrifugal compressor
KR100302975B1 (en) * 1997-11-28 2001-09-22 윌리엄 더블유. 하벨트 Discharge vanes for axial fans

Similar Documents

Publication Publication Date Title
AU532898B2 (en) Regenerative rotodynamic machine
JPS5629099A (en) Diffuser for centrifugal fluid machinery
DE1426856A1 (en) Expansion turbine for utilizing the energy of hot, dusty gases flowing under pressure
EP0354470A3 (en) Reactor coolant pump having double dam seal with self-contained injection pump mechanism
JPS5681296A (en) Pump with inducer
JPS5629088A (en) Pump device
JP2739874B2 (en) Inducer pump with shroud
JPS5468502A (en) Pump equipped with inducer
JPS555432A (en) Pump with inducer
JPS5299404A (en) Suction flow path of centrifugal pump
JPS57108499A (en) Electric blower
JPS5491805A (en) Suction passage in fluid machine
JPS55164800A (en) Centrifugal pump
JPS5799279A (en) Water turbine with guide vanes
FR2229271A5 (en) Device for rotating steam in axial-flow turbine - has narrowing tangential nozzles leading to annular around rotor
JPS5797978A (en) Expansion valve for refrigerant
JPS5221542A (en) Guide vane arrangement structure of a hydraulic motor
JPS57188795A (en) Vertical pump
JPS51116304A (en) Moving root fin
SU966315A1 (en) Turbomachine lateral output pipe
JPS56135756A (en) Hydraulic machine having semispiral casing
JPS5444204A (en) Suction flow channel of volute pump
FR2413571A1 (en) Centrifugal pump or compressor - has nozzles to direct fluid stream tangentially to volute outer casing to prevent eddy formation
JPS5524240A (en) Thrust bearing
JPS5593904A (en) Device for preventing corrosion of cover for moving vane of turbine