EP1709295A1 - Pompe pour matieres - Google Patents

Pompe pour matieres

Info

Publication number
EP1709295A1
EP1709295A1 EP04810596A EP04810596A EP1709295A1 EP 1709295 A1 EP1709295 A1 EP 1709295A1 EP 04810596 A EP04810596 A EP 04810596A EP 04810596 A EP04810596 A EP 04810596A EP 1709295 A1 EP1709295 A1 EP 1709295A1
Authority
EP
European Patent Office
Prior art keywords
pumps
throws
assembly
coating material
movable component
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.)
Withdrawn
Application number
EP04810596A
Other languages
German (de)
English (en)
Inventor
John F. Schaupp
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.)
Illinois Tool Works Inc
Original Assignee
Illinois Tool Works Inc
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 Illinois Tool Works Inc filed Critical Illinois Tool Works Inc
Publication of EP1709295A1 publication Critical patent/EP1709295A1/fr
Withdrawn legal-status Critical Current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
    • 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
    • F04B53/006—Crankshafts

Definitions

  • This invention relates to material pumps. It is disclosed in the context of a pump for pumping, for example, coating material (hereinafter sometimes paint), but is believed to be useful in other applications as well.
  • coating material hereinafter sometimes paint
  • an assembly of multiple fluid pumps is provided.
  • Each pump includes a movable component.
  • a crank is coupled to the movable component. At least two of the movable components define between them a non-zero included angle.
  • the crank comprises at least two throws, the apparatus further including at least two connecting rods, the crank being coupled to the movable components by the at least two throws and the at least two connecting rods.
  • the at least two throws comprise at least three throws, one of the at least three throws defining substantially equal included angles with the other two of the at least three throws.
  • the at least three throws comprise n throws, n an integer greater than 2, each throw making included angles with two others of the n throws, each said included angle being about 360 n.
  • an assembly of multiple fluid pumps is provided.
  • Each pump includes a movable component.
  • a cam is coupled to the movable component.
  • At least two of the movable components define between them a non-zero included angle.
  • the assembly further includes at least two followers. The cam is coupled to the movable component by the at least two followers.
  • the cam is configured to drive at least two of the pumps such that one of the at least two pumps reaches the beginning of an exhaust stroke at substantially the same time that the other of the at least two pumps reaches the beginning of a priming stroke.
  • the apparatus comprises m cams, m an integer greater than or equal to 2, each cam including p lobes, p an integer greater than or equal to 2, a line drawn between peaks of two adjacent lobes of one of the m cams making non-zero angles with lines drawn between peaks of any two adjacent lobes of another of the m cams.
  • the pumps are coating material pumps.
  • Fig. 1 illustrates a fragmentary, partly sectional side elevational view of a composite pump constructed according to the invention
  • Fig. 2 illustrates a fragmentary sectional view of the embodiment illustrated in Fig. 1, taken generally along section lines 2-2 thereof
  • Fig. 3 illustrates a partly broken away top plan view of a composite pump constructed according to the invention.
  • a composite pump 120 includes multiple fluid pump sections 120-1, 120-2, . . . 120-n, only one of which is illustrated. Typically, the components of the composite pump are supported in a frame 121. Each pump section
  • 120-1, 120-2, . . . 120-n includes an operating rod 122-1, 122-2, . . . 122-n, respectively.
  • the pump 120 further includes a crankshaft 124 rotatably mounted in suitable bearings.
  • Crankshaft 124 has throws 124-1, 124-2, . . . 124-n.
  • Operating rods 122-1, 122-2, . . . 122-n of pump sections 120-1, 120-2, . . . 120-n, respectively, are coupled by connecting rods 126-1, 126-2, . . . 126-n, respectively, to throws 124-1, 124-2, . . . 124-n, respectively.
  • the throws 124-1, 124-2 When viewed from an end 128 of crankshaft 124, the throws 124-1, 124-2,
  • throw 124-1 need not be offset by equal angles between throw 124-2 and 124-n. Indeed, throw 124-m and throw 124-(m - 1) or 124-(m
  • throw 124-m lies at equal angles between some two of the remaining throws 124-1, 124-2, . . . 124-(m - 1), 124-(m + 1), . . . 124-n. It should further be understood that it is not necessary for throws to be offset at equal angles from each other.
  • the invention may be practiced using a crankshaft having only two throws which are angularly offset from each other by, for example, 90°.
  • the pistons of pump sections 120-1, 120-2, . . . 120-n are driven out of phase to provide a supply of the fluid which has reduced pumping pressure pulses.
  • a composite pump 220 constructed according to the invention includes multiple fluid pump sections 220-1, 220-2, . . . 220-n supported in a frame 221.
  • Each pump section 220-1, 220-2, . . . 220-n includes an operating rod 222-1, 222-2, . . . 222-n, respectively.
  • the pump 220 further includes a crankshaft 224 rotating one or more suitably shaped, for example, somewhat elliptical or cardioid shaped, cams 226-a, 226-b, . . . 226-m.
  • a follower 228-1, 228-2, . . . 228-n is coupled to each respective operating rod 222-1, 222-2, . . . 222-n.
  • 228-n are coupled to each other in opposed pairs, 228-1, 228-2; 228-3, 228-4; . . . 228-(n - 1), 228-n by coil tension springs 230, so that they are continually urged against camming surfaces 232 of respective cams 226-a, 226-b, . . . 226-m.
  • the other of the respective opposed sections 228-2; 228-4; . . . 228-n reaches the beginning of its pumping stroke, thereby smoothing the flow of the pumped fluid.
  • cams 226-a, 226-b, . . . 226-m may also be oriented with their lobes at non-zero angles to each other.
  • the cams 226-a, 226-b, . . . 226-m are somewhat elliptical, having lobes at the two opposite ends of their major axes, the major axes of the cams 226-a, 226-b, . . .
  • 226-m may be oriented at non-zero angles to each other so that the pumping and priming strokes of each opposed pair 220-1, 220-2; 220-3, 220-4; . . . 220-(n - 1), 220-n of pump sections are out of phase with those of the other opposed pairs 220-1, 220-2; 220-3, 220- 4; . . . 220-(n - 1), 220-n of pump sections.
  • This arrangement further smooths the flow of the pumped fluid.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Details Of Reciprocating Pumps (AREA)
  • Reciprocating Pumps (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Transmission Devices (AREA)

Abstract

Une pompe composite comprend des pompes à fluides multiples qui comprend chacune un composant mobile et un vilebrequin couplé au composant mobile. Au moins deux des composants mobiles définissent entre eux un angle d'ouverture non égal à zéro.
EP04810596A 2004-01-20 2004-11-08 Pompe pour matieres Withdrawn EP1709295A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US53777404P 2004-01-20 2004-01-20
PCT/US2004/037345 WO2005075793A1 (fr) 2004-01-20 2004-11-08 Pompe pour matieres

Publications (1)

Publication Number Publication Date
EP1709295A1 true EP1709295A1 (fr) 2006-10-11

Family

ID=34837351

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04810596A Withdrawn EP1709295A1 (fr) 2004-01-20 2004-11-08 Pompe pour matieres

Country Status (7)

Country Link
US (1) US20080232988A1 (fr)
EP (1) EP1709295A1 (fr)
JP (1) JP2007518920A (fr)
CN (1) CN1918363A (fr)
AU (1) AU2004315204A1 (fr)
CA (1) CA2553680A1 (fr)
WO (1) WO2005075793A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0518637D0 (en) 2005-09-13 2005-10-19 Itw Ltd Back pressure regulator
US7828527B2 (en) 2005-09-13 2010-11-09 Illinois Tool Works Inc. Paint circulating system and method
DE102006044300A1 (de) * 2006-09-20 2008-04-03 Siemens Ag Pumpenanordnung mit mindestens zwei Radialkolbenpumpen
US8454307B2 (en) * 2008-11-26 2013-06-04 Sta-Rite Industries, Llc Socket with bearing bore and integrated wear plate
US8164293B2 (en) 2009-09-08 2012-04-24 Hoffman Enclosures, Inc. Method of controlling a motor
US8297369B2 (en) 2009-09-08 2012-10-30 Sta-Rite Industries, Llc Fire-extinguishing system with servo motor-driven foam pump
US8183810B2 (en) 2009-09-08 2012-05-22 Hoffman Enclosures, Inc. Method of operating a motor

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1316258A (en) * 1919-09-16 Mttlticylindek
US2697403A (en) * 1949-06-06 1954-12-21 Melba L Benedek Hydraulic pump or motor
US4009971A (en) * 1974-06-07 1977-03-01 Binks Manufacturing Company Electric motor-driven, double-acting pump having pressure-responsive actuation
US4397610A (en) * 1981-03-09 1983-08-09 Graco Inc. Reciprocable pump with variable speed drive
US5094596A (en) * 1990-06-01 1992-03-10 Binks Manufacturing Company High pressure piston pump for fluent materials
JPH0513466A (ja) * 1991-07-02 1993-01-22 Fujitsu Ltd 半導体装置
US5228842A (en) * 1991-07-30 1993-07-20 Wagner Spray Tech Corporation Quick-change fluid section for piston-type paint pumps
US5220259A (en) * 1991-10-03 1993-06-15 Graco Inc. Dc motor drive system and method
US5944045A (en) * 1994-07-12 1999-08-31 Ransburg Corporation Solvent circuit
JP3819945B2 (ja) * 1994-08-08 2006-09-13 新潟ウオシントン株式会社 竪型プランジャーポンプ
US5725150A (en) * 1995-05-03 1998-03-10 Illinois Tool Works Inc. Method and system for an improved voltage block
US5725358A (en) * 1995-08-30 1998-03-10 Binks Manufacturing Company Pressure regulated electric pump
JP3512548B2 (ja) * 1996-01-12 2004-03-29 株式会社丸山製作所 多連式往復ポンプ装置
US6623250B2 (en) * 2000-02-17 2003-09-23 Goodrich Pump And Engine Control Systems, Inc. Fuel metering unit
US6533488B2 (en) * 2000-02-29 2003-03-18 Graco Inc. Airless sprayer drive mechanism
WO2002026614A2 (fr) * 2000-09-29 2002-04-04 Pepsico, Inc. Distributeur de thé infusé glacé ou de boisson non gazeuse
US6821096B2 (en) * 2002-08-30 2004-11-23 Illinois Tool Works Inc. Multiple component metering and dispensing system
US7918369B2 (en) * 2002-09-25 2011-04-05 Illinois Tool Works Inc. Two-component spray gun with solvent flush/blend

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2005075793A1 *

Also Published As

Publication number Publication date
US20080232988A1 (en) 2008-09-25
JP2007518920A (ja) 2007-07-12
AU2004315204A1 (en) 2005-08-18
CN1918363A (zh) 2007-02-21
WO2005075793A1 (fr) 2005-08-18
CA2553680A1 (fr) 2005-08-18

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