US20080232988A1 - Material Pump - Google Patents

Material Pump Download PDF

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Publication number
US20080232988A1
US20080232988A1 US10/586,275 US58627504A US2008232988A1 US 20080232988 A1 US20080232988 A1 US 20080232988A1 US 58627504 A US58627504 A US 58627504A US 2008232988 A1 US2008232988 A1 US 2008232988A1
Authority
US
United States
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.)
Abandoned
Application number
US10/586,275
Other languages
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
Priority to US10/586,275 priority Critical patent/US20080232988A1/en
Assigned to ILLINOIS TOOL WORKS INC. reassignment ILLINOIS TOOL WORKS INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: SCHAUPP, JOHN F.
Publication of US20080232988A1 publication Critical patent/US20080232988A1/en
Abandoned legal-status Critical Current

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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 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 limes 2 - 2 thereof;
  • FIG. 3 illustrates a partly broken away top plan view of a composite pump constructed according to the invention.
  • the fluid output pressure from certain positive displacement pumps typically exhibits pressure pulses.
  • An example of such pumps is a four ball pump of the type illustrated in, for example, Binks® A41-78-R3 EXELTM Pump Series Binks®, ITW Industrial Finishing, 2002.
  • In such a pump as the pistons reverse directions, there is a negative-going pulse in the output fluid pressure.
  • other types of pumps such as rotary pumps and the like provide a steadier flow with fewer and/or less dramatic changes in output fluid pressure, most such pumps expose the fluids they pump to considerable shear stress.
  • exposure of the recirculating coating material to high shear can adversely affect the coating material's recirculation life.
  • a composite pump 120 includes multiple fluid pump sections 120 - 1 , 120 - 2 , . . . 120 - n , only one of which is illustrated.
  • 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 , . . . 124 - n illustratively make equal angles with adjacent throws 124 - 1 , 124 - 2 , . . . 124 - n . It should be understood, however, that 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+1), 1 ⁇ m ⁇ n, could make angles of 180° with respect to each other.
  • 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. Any angular orientation in which one of the pump sections 124 - 1 , 124 - 2 , . . . 124 - n is not to be at the end of a pumping stroke when another of the pump sections 124 - 1 , 124 - 2 , . . . 124 - n reaches the end of its pumping stroke and begins its priming or intake stroke will reduce the negative-going pulse, thereby smoothing the flow of the pumped fluid.
  • the crankshaft 124 illustratively is driven by an AC motor 136 through a right angle gearbox 138 .
  • 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 , . . .
  • a follower 228 - 1 , 228 - 2 , . . . 228 - n is coupled to each respective operating rod 222 - 1 , 222 - 2 , . . . 222 - n .
  • the respective followers 228 - 1 , 228 - 2 , . . . 228 - n are coupled to each other in opposed pairs, 228 - 1 , 228 - 2 ; 228 - 3 , 228 A 4 ; . . .
  • 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)
  • Transmission Devices (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
US10/586,275 2004-01-20 2004-11-08 Material Pump Abandoned US20080232988A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US10/586,275 US20080232988A1 (en) 2004-01-20 2004-11-08 Material Pump

Applications Claiming Priority (3)

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
US10/586,275 US20080232988A1 (en) 2004-01-20 2004-11-08 Material Pump

Publications (1)

Publication Number Publication Date
US20080232988A1 true US20080232988A1 (en) 2008-09-25

Family

ID=34837351

Family Applications (1)

Application Number Title Priority Date Filing Date
US10/586,275 Abandoned US20080232988A1 (en) 2004-01-20 2004-11-08 Material Pump

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)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100296921A1 (en) * 2008-11-26 2010-11-25 Cottrell Matthew A Socket with Bearing Bore and Integrated Wear Plate
US8164293B2 (en) 2009-09-08 2012-04-24 Hoffman Enclosures, Inc. Method of controlling a motor
US8183810B2 (en) 2009-09-08 2012-05-22 Hoffman Enclosures, Inc. Method of operating a motor
US8297369B2 (en) 2009-09-08 2012-10-30 Sta-Rite Industries, Llc Fire-extinguishing system with servo motor-driven foam pump

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7828527B2 (en) 2005-09-13 2010-11-09 Illinois Tool Works Inc. Paint circulating system and method
GB0518637D0 (en) 2005-09-13 2005-10-19 Itw Ltd Back pressure regulator
DE102006044300A1 (de) * 2006-09-20 2008-04-03 Siemens Ag Pumpenanordnung mit mindestens zwei Radialkolbenpumpen

Citations (15)

* 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
US5220259A (en) * 1991-10-03 1993-06-15 Graco Inc. Dc motor drive system and method
US5228842A (en) * 1991-07-30 1993-07-20 Wagner Spray Tech Corporation Quick-change fluid section for piston-type paint pumps
US5632816A (en) * 1994-07-12 1997-05-27 Ransburg Corporation Voltage block
US5725358A (en) * 1995-08-30 1998-03-10 Binks Manufacturing Company Pressure regulated electric pump
US5725150A (en) * 1995-05-03 1998-03-10 Illinois Tool Works Inc. Method and system for an improved voltage block
US6533488B2 (en) * 2000-02-29 2003-03-18 Graco Inc. Airless sprayer drive mechanism
US20040056045A1 (en) * 2002-09-25 2004-03-25 Kosmyna Michael J. Two-component spray gun with solvent flush/blend
US20040056046A1 (en) * 2000-09-29 2004-03-25 Pepsico, Inc. Brewed iced tea or non-carbonated drink dispenser
US6821096B2 (en) * 2002-08-30 2004-11-23 Illinois Tool Works Inc. Multiple component metering and dispensing system
US6821093B2 (en) * 2000-02-17 2004-11-23 Goodrich Pump & Engine Control Systems, Inc. Flow meter

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0513466A (ja) * 1991-07-02 1993-01-22 Fujitsu Ltd 半導体装置
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
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

Patent Citations (19)

* 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
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
US5336063A (en) * 1991-10-03 1994-08-09 Graco Inc. Electric drive pump
US5632816A (en) * 1994-07-12 1997-05-27 Ransburg Corporation Voltage block
US5746831A (en) * 1994-07-12 1998-05-05 Ransburg Corporation Voltage block
US5787928A (en) * 1994-07-12 1998-08-04 Ransburg Corporation Valve structure
US5944045A (en) * 1994-07-12 1999-08-31 Ransburg Corporation Solvent circuit
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
US6821093B2 (en) * 2000-02-17 2004-11-23 Goodrich Pump & Engine Control Systems, Inc. Flow meter
US6533488B2 (en) * 2000-02-29 2003-03-18 Graco Inc. Airless sprayer drive mechanism
US20040056046A1 (en) * 2000-09-29 2004-03-25 Pepsico, Inc. Brewed iced tea or non-carbonated drink dispenser
US6821096B2 (en) * 2002-08-30 2004-11-23 Illinois Tool Works Inc. Multiple component metering and dispensing system
US20040056045A1 (en) * 2002-09-25 2004-03-25 Kosmyna Michael J. Two-component spray gun with solvent flush/blend

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100296921A1 (en) * 2008-11-26 2010-11-25 Cottrell Matthew A Socket with Bearing Bore and Integrated Wear Plate
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
US8183810B2 (en) 2009-09-08 2012-05-22 Hoffman Enclosures, Inc. Method of operating a motor
US8297369B2 (en) 2009-09-08 2012-10-30 Sta-Rite Industries, Llc Fire-extinguishing system with servo motor-driven foam pump

Also Published As

Publication number Publication date
CN1918363A (zh) 2007-02-21
CA2553680A1 (fr) 2005-08-18
AU2004315204A1 (en) 2005-08-18
EP1709295A1 (fr) 2006-10-11
JP2007518920A (ja) 2007-07-12
WO2005075793A1 (fr) 2005-08-18

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Legal Events

Date Code Title Description
AS Assignment

Owner name: ILLINOIS TOOL WORKS INC., ILLINOIS

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:SCHAUPP, JOHN F.;REEL/FRAME:015561/0518

Effective date: 20041110

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION