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FR2335708A1 - Reciprocating sludge pump unit - has auxiliary piston providing protective clean fluid flow to moving parts of sludge piston - Google Patents

Reciprocating sludge pump unit - has auxiliary piston providing protective clean fluid flow to moving parts of sludge piston

Info

Publication number
FR2335708A1
FR2335708A1 FR7538894A FR7538894A FR2335708A1 FR 2335708 A1 FR2335708 A1 FR 2335708A1 FR 7538894 A FR7538894 A FR 7538894A FR 7538894 A FR7538894 A FR 7538894A FR 2335708 A1 FR2335708 A1 FR 2335708A1
Authority
FR
France
Prior art keywords
sludge
clean fluid
piston
cylinder
fluid flow
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.)
Granted
Application number
FR7538894A
Other languages
French (fr)
Other versions
FR2335708B1 (en
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.)
MAGYAR ALUMINIUM
Original Assignee
MAGYAR ALUMINIUM
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 MAGYAR ALUMINIUM filed Critical MAGYAR ALUMINIUM
Priority to FR7538894A priority Critical patent/FR2335708A1/en
Publication of FR2335708A1 publication Critical patent/FR2335708A1/en
Application granted granted Critical
Publication of FR2335708B1 publication Critical patent/FR2335708B1/fr
Granted legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B5/00—Machines or pumps with differential-surface pistons
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B13/00—Pumps specially modified to deliver fixed or variable measured quantities
    • F04B13/02—Pumps specially modified to deliver fixed or variable measured quantities of two or more fluids at the same time
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B15/00—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts
    • F04B15/02—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts the fluids being viscous or non-homogeneous
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B3/00—Machines or pumps with pistons coacting within one cylinder, e.g. multi-stage
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections
    • F04B53/162—Adaptations of cylinders
    • F04B53/164—Stoffing boxes

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Details Of Reciprocating Pumps (AREA)
  • Reciprocating Pumps (AREA)

Abstract

The pump has a sludge cylinder n2) continuing in a clean fluid cylinder (1) of a larger diameter. In this cylinder assembly sludge piston (5) with peripheral gap (18) and clean fluid piston (4) are fitted on the same piston rod (3) and operate together. The working space of the sludge cylinder is on its free end (9) and contains suction valve (7), discharge valve (8), protective bell-shaped baffle plate (11) with gap (12) around piston rod, clean fluid inlet valve (16), gland (10) and clean fluid bypass connection (13). During the suction stroke sludge cylinder is filled via valve (7) with solids-laden fluid, while clean fluid on the other side of the sludge piston (5) is discharged via outlet and bypass into space between protective baffle and sludge cylinder head (9). At the same time clean fluid piston (4) due to its larger size draws in clean fluid in excess of the volume being discharged into the bypass.
FR7538894A 1975-12-18 1975-12-18 Reciprocating sludge pump unit - has auxiliary piston providing protective clean fluid flow to moving parts of sludge piston Granted FR2335708A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7538894A FR2335708A1 (en) 1975-12-18 1975-12-18 Reciprocating sludge pump unit - has auxiliary piston providing protective clean fluid flow to moving parts of sludge piston

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7538894A FR2335708A1 (en) 1975-12-18 1975-12-18 Reciprocating sludge pump unit - has auxiliary piston providing protective clean fluid flow to moving parts of sludge piston

Publications (2)

Publication Number Publication Date
FR2335708A1 true FR2335708A1 (en) 1977-07-15
FR2335708B1 FR2335708B1 (en) 1978-05-12

Family

ID=9163920

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7538894A Granted FR2335708A1 (en) 1975-12-18 1975-12-18 Reciprocating sludge pump unit - has auxiliary piston providing protective clean fluid flow to moving parts of sludge piston

Country Status (1)

Country Link
FR (1) FR2335708A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2406096A1 (en) * 1977-10-13 1979-05-11 Skm Sa Double acting pump for abrasive materials - has self acting system to supply solvent to cylinder walls to dissolve deposits
FR2565158A1 (en) * 1984-05-30 1985-12-06 Hedrich Vakuumanlagen Wilhelm CASTING SYSTEM FOR PROCESSING PLASTIC MATERIAL
FR2732078A1 (en) * 1995-03-25 1996-09-27 Gamasonic Sarl Dosing process using series of piston-cylinder assemblies
EP2505835A1 (en) * 2009-11-24 2012-10-03 Nikkiso Company Limited Reciprocation pump and dialysis device comprising same

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2406096A1 (en) * 1977-10-13 1979-05-11 Skm Sa Double acting pump for abrasive materials - has self acting system to supply solvent to cylinder walls to dissolve deposits
FR2565158A1 (en) * 1984-05-30 1985-12-06 Hedrich Vakuumanlagen Wilhelm CASTING SYSTEM FOR PROCESSING PLASTIC MATERIAL
FR2732078A1 (en) * 1995-03-25 1996-09-27 Gamasonic Sarl Dosing process using series of piston-cylinder assemblies
EP2505835A1 (en) * 2009-11-24 2012-10-03 Nikkiso Company Limited Reciprocation pump and dialysis device comprising same
EP2505835A4 (en) * 2009-11-24 2015-03-18 Nikkiso Co Ltd Reciprocation pump and dialysis device comprising same

Also Published As

Publication number Publication date
FR2335708B1 (en) 1978-05-12

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Legal Events

Date Code Title Description
ST Notification of lapse