GB695556A - Improvements relating to the reduction of pulsations produced in fluids by the operation of pumps, blowers, fans, internal combustion engines, and the like - Google Patents

Improvements relating to the reduction of pulsations produced in fluids by the operation of pumps, blowers, fans, internal combustion engines, and the like

Info

Publication number
GB695556A
GB695556A GB547050A GB547050A GB695556A GB 695556 A GB695556 A GB 695556A GB 547050 A GB547050 A GB 547050A GB 547050 A GB547050 A GB 547050A GB 695556 A GB695556 A GB 695556A
Authority
GB
United Kingdom
Prior art keywords
fans
outlet ports
inlet
chambers
pumps
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.)
Expired
Application number
GB547050A
Inventor
Arthur Samuel Ennis
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.)
Metropolitan Vickers Electrical Co Ltd
Original Assignee
Metropolitan Vickers Electrical 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 Metropolitan Vickers Electrical Co Ltd filed Critical Metropolitan Vickers Electrical Co Ltd
Priority to GB547050A priority Critical patent/GB695556A/en
Publication of GB695556A publication Critical patent/GB695556A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
    • F01C21/003—Systems for the equilibration of forces acting on the elements of the machine
    • F01C21/006—Equalization of pressure pulses

Landscapes

  • Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)

Abstract

695,556. Rotary pumps; fans. METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. Jan. 24, 1951 [March 3, 1950], No. 5470/50. Class 110(i) and 110(ii) [Also in Group XXVII] Means to reduce pulsation in a fluid while it is being pumped comprise separate chambers connected respectively to the pump inlet and outlet ports, and varying the volume of each chamber substantially in phase with changes of pressure occurring therein and in proportion to the pressure. As shown, a totary pump 3 has inlet and outlet ports 1, 2 connected with chambers 4, 5 separated by a flexible diaphragm ,6; which may be rubber, supported By a spring 11. In place of the diaphragm a piston or other movable means may be used and the piston may be moved mechanically or otherwise. A number of separate diaphragms may be used in place of a single one. When used with a fan, the chambers 4, 5 may be placed further away from the inlet and outlet ports 1, 2 to give longer connecting passages. To reduce noise due to pulsations, the passage'lengths may be calculated so that each is a multiple of the wavelength of the fundamental pulse frequency of the fan.
GB547050A 1950-03-03 1950-03-03 Improvements relating to the reduction of pulsations produced in fluids by the operation of pumps, blowers, fans, internal combustion engines, and the like Expired GB695556A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB547050A GB695556A (en) 1950-03-03 1950-03-03 Improvements relating to the reduction of pulsations produced in fluids by the operation of pumps, blowers, fans, internal combustion engines, and the like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB547050A GB695556A (en) 1950-03-03 1950-03-03 Improvements relating to the reduction of pulsations produced in fluids by the operation of pumps, blowers, fans, internal combustion engines, and the like

Publications (1)

Publication Number Publication Date
GB695556A true GB695556A (en) 1953-08-12

Family

ID=9796779

Family Applications (1)

Application Number Title Priority Date Filing Date
GB547050A Expired GB695556A (en) 1950-03-03 1950-03-03 Improvements relating to the reduction of pulsations produced in fluids by the operation of pumps, blowers, fans, internal combustion engines, and the like

Country Status (1)

Country Link
GB (1) GB695556A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2951450A (en) * 1956-04-17 1960-09-06 John C Fisher Fluid pump
US3145662A (en) * 1960-09-06 1964-08-25 Eickmann Karl Device for damping vibrations, fluctuations of pressure and fluctuation of deliveryvolume or suction volume of rotary piston machines
WO2014151461A1 (en) * 2013-03-15 2014-09-25 Eaton Corporation Noise cancellation by phase-matching communicating ducts of roots-type blower and expander

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2951450A (en) * 1956-04-17 1960-09-06 John C Fisher Fluid pump
US3145662A (en) * 1960-09-06 1964-08-25 Eickmann Karl Device for damping vibrations, fluctuations of pressure and fluctuation of deliveryvolume or suction volume of rotary piston machines
WO2014151461A1 (en) * 2013-03-15 2014-09-25 Eaton Corporation Noise cancellation by phase-matching communicating ducts of roots-type blower and expander

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