US3549279A - Windscreen washer pumps - Google Patents

Windscreen washer pumps Download PDF

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Publication number
US3549279A
US3549279A US789330A US3549279DA US3549279A US 3549279 A US3549279 A US 3549279A US 789330 A US789330 A US 789330A US 3549279D A US3549279D A US 3549279DA US 3549279 A US3549279 A US 3549279A
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US
United States
Prior art keywords
stator
rotor
chamber
fluid
pump
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 - Lifetime
Application number
US789330A
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English (en)
Inventor
Pierre C Grach
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.)
CABLES DU MANS Ste
STOP
Original Assignee
STOP
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
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Application granted granted Critical
Publication of US3549279A publication Critical patent/US3549279A/en
Assigned to SOCIETE DES CABLES DU MANS reassignment SOCIETE DES CABLES DU MANS ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: BENDIX FRANCE
Assigned to SOCIETE DES CABLES DU MANS reassignment SOCIETE DES CABLES DU MANS RE-RECORD OF AN INSTRUMENT RECORDED MAY 15, 1987 AT REEL 4694 FRAME 407-409 TO CORRECT THE PATENT NUMBER ERRORENOUSLY STATED AS 3,549,229. Assignors: BENDIX FRANCE
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
    • B60S1/00—Cleaning of vehicles
    • B60S1/02—Cleaning windscreens, windows or optical devices
    • B60S1/46—Cleaning windscreens, windows or optical devices using liquid; Windscreen washers
    • B60S1/48—Liquid supply therefor
    • 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
    • F04B43/00—Machines, pumps, or pumping installations having flexible working members
    • F04B43/12—Machines, pumps, or pumping installations having flexible working members having peristaltic action
    • F04B43/14—Machines, pumps, or pumping installations having flexible working members having peristaltic action having plate-like flexible members

Definitions

  • the pump according to this invention is adapted to be driven from a rotary electric motor energized from the storage battery of the vehicle through switch means controlled by the driver of the vehicle, so as to suck up water or a detergent solution kept in a reservoir and force this fluid towards nozzles or any other means provided for projecting it against the windscreen of the vehicle so as to clean same in conjunction with the windscreen wiper.
  • a self-priming pump i.e. a pump comprising a suction cycle during its rotation in order to create a cavity of gradually increasing volume or capacity which is connected to a reservoir at atmospheric or higher pressure.
  • the pump according to this invention comprises, as a variable-volume capacity, an annular chamber having at least one elastic wall.
  • the centrifugal force is exerted against a plurality of members carried by the rotor and rolling on the deformable membrane; thus, these members close locally the annular chamber. Their movement along the wall of the annular chamber will thus create two variable-volume capacities connected to the pump suction and exhaust ports, respectively.
  • FIG. 1 is a sectional view of the pump, the plane of the section containing the pump axis;
  • FIG. 2 is a section taken along the line AA of FIG. 1;
  • FIGS. 3 and 4 are views similar to FIG. 2 but showing different forms of embodiment.
  • the pump illustrated in FIGS. 1 and 2 of the drawing comprises a stator 2 and a pair of end covers or flanges 1 and 3.
  • a central orifice 4 is formed to constitute a bearing for the driving shaft 5.
  • the stator 2 comprises an annular channel 6 and a longitudinal groove 7 formed in the inner cylindrical portion.
  • a cylindrical resilient membrane or sleeve 8 corresponding in shape to the cylindrical portion of the stator comprises two annular end flanges 9 adapted to retain the membrane in position and seal the assembly by being clamped between the stator 2 and the end covers 1 and 3 respectively.
  • This membrane 9 further comprises a longitudinal bead 10 interconnecting the annular end flanges SI and fitting in said longitudinal stator groove 7 so as to create a fluid-tight joint or break in the annular chamber formed by the stator channel 6 between said stator 2 and membrane 8.
  • a suction port 11 and a delivery port 12 are formed through the wall of said stator, respectively, as shown.
  • Rotatably mounted in the central chamber of the stator is a rotor 13 rotatably rigid with the motor-driven shaft -5 and formed with at least two cavities extending parallel to the axis of rotation.
  • the function of these rotor cavities is to receive balls 14 and 15 therein.
  • the shape and dimensions of these cavities are such that the balls 14, 15 are carried along by the rotor but can move radially so as to leave the membrane unstressed in their inoperative condition.
  • the cavities of rotor '13 are shaped as illustrated in FIG. 2 so that the ball-driving torque creates a radial component adding itself to the centrifugal force, as shown diagrammatically by the angle a of FIG. 2.
  • FIG. 3 shows a modified form of embodiment in which the annular chamber is formed by a tubular member 20 having resilient walls.
  • the balls may also be replaced by rollers or needles.
  • the rolling members leave the tube '20 in an area 19 in which an elastic pad of the same material as the tube may be fitted to avoid any-discontunity in the nature of the annular track followed by the rolling members.
  • FIG. 4 illustrates a modified arrangement applicable to both of the preceding examples and wherein the radial force urging the rolling members against the resilient-annular track is supplemented by a spring 21 or any other suitable resilient means, thus cutting off the fluid communication between the suction and delivery ports whe the motor is not energized.
  • a pump particularly applicable to windscreen washers comprising a stator having central chamber and a suction port and a delivery port communicating with said central chamber, at least one elastic wall member mounted in said chamber of the stator and connected to said ports to define an annular chamber between said wall member and said stator, a rotor rotatably mounted in said central chamber coaxially with said stator, at least two diametrically opposed radial cavities in said stator parallel to the axis of rotation and which cavities have their largest dimension at their radially outermost end, ball means in each of said cavities and being urged against said elastic wall by centrifugal force when said rotor is rotated to form at least two variable volume capacities in said annular chamber, one of which is connected to the suction port and another of which is connected to the delivery port, the shape of said cavities being such that the ball-driving torque during the rotor rotation creates a radial component adding to the centrifugal force.
  • said elastic wall member comprises a cylindrical sleeve with annular end flanges, a longitudinal groove formed in said stator between said ports, a longitudinal bead formed on said sleeve and engaging in said groove in a fluid-tight manner, and end plate sealing said stator in a fluid-tight manner.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Reciprocating Pumps (AREA)
US789330A 1968-01-26 1969-01-06 Windscreen washer pumps Expired - Lifetime US3549279A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR137677 1968-01-26

Publications (1)

Publication Number Publication Date
US3549279A true US3549279A (en) 1970-12-22

Family

ID=8645184

Family Applications (1)

Application Number Title Priority Date Filing Date
US789330A Expired - Lifetime US3549279A (en) 1968-01-26 1969-01-06 Windscreen washer pumps

Country Status (6)

Country Link
US (1) US3549279A (enrdf_load_stackoverflow)
JP (1) JPS501922B1 (enrdf_load_stackoverflow)
DE (1) DE1901748C3 (enrdf_load_stackoverflow)
ES (1) ES358398A1 (enrdf_load_stackoverflow)
FR (1) FR1562957A (enrdf_load_stackoverflow)
GB (1) GB1208712A (enrdf_load_stackoverflow)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4417856A (en) * 1981-08-25 1983-11-29 Minissian Kevin G Peristaltic pump
US6036459A (en) * 1996-04-04 2000-03-14 Medtronic, Inc. Occlusion compensator for implantable peristaltic pump
WO2003100256A1 (en) * 2002-05-29 2003-12-04 Krister Juntunen Pump
US20070031272A1 (en) * 2005-08-05 2007-02-08 Molon Motor And Coil Corporation Peristaltic pump
US20090092507A1 (en) * 2005-08-05 2009-04-09 Ramirez Jr Emilio A Fluid pump systems
US20110058969A1 (en) * 2005-08-05 2011-03-10 Molon Motor And Coil Corporation Peristaltic Pump with Torque Relief
US8585379B2 (en) 2005-08-05 2013-11-19 Molon Motor And Coil Corporation Peristaltic pump that is resistant to torques and vibrations
WO2014135325A1 (de) * 2013-03-05 2014-09-12 Emitec Gesellschaft Für Emissionstechnologie Mbh Pumpe zur dosierung eines flüssigen additivs für eine selektive katalytische reduktions vorrichtung
WO2014173666A1 (de) * 2013-04-26 2014-10-30 Emitec Gesellschaft Für Emissionstechnologie Mbh Pumpe zur dosierung eines flüssigen additivs für eine selektive katalytische reduktions vorrichtung
CN105452660A (zh) * 2013-06-13 2016-03-30 大陆汽车有限责任公司 用于输送液体的泵
US20160138589A1 (en) * 2013-06-13 2016-05-19 Continental Automotive Gmbh Pump for delivering a liquid
CN106662102A (zh) * 2014-08-28 2017-05-10 大陆汽车有限责任公司 用于输送液体、特别是用于输送排气净化添加剂的泵
CN108278194A (zh) * 2018-01-23 2018-07-13 四川君汇科技有限公司 类齿结构的滚珠式蠕动泵
CN110388311A (zh) * 2019-07-24 2019-10-29 四川轻化工大学 一种自维护滚珠式蠕动泵

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3326784C2 (de) * 1983-07-25 1986-06-05 Fresenius AG, 6380 Bad Homburg Peristaltisch arbeitende Rollenpumpe
EP3056733B1 (en) * 2013-10-09 2023-11-08 Welco Co., Ltd Pump
US10151309B2 (en) * 2016-03-21 2018-12-11 John McIntyre Peristaltic pump

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2885966A (en) * 1956-01-24 1959-05-12 Ford Reginald Clarence Rotary pumps
US2898864A (en) * 1956-12-27 1959-08-11 Nicotron Developments Ltd Rotary pumps
US2935028A (en) * 1957-08-05 1960-05-03 Technicon Instr Pumps
US3064583A (en) * 1957-03-29 1962-11-20 Bendix Corp Variable displacement pump
US3137240A (en) * 1961-07-17 1964-06-16 Russell G Hunt Pumps
GB1031595A (en) * 1963-10-22 1966-06-02 William Alexander Wemyss Improvements in compressible tube pumps

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2885966A (en) * 1956-01-24 1959-05-12 Ford Reginald Clarence Rotary pumps
US2898864A (en) * 1956-12-27 1959-08-11 Nicotron Developments Ltd Rotary pumps
US3064583A (en) * 1957-03-29 1962-11-20 Bendix Corp Variable displacement pump
US2935028A (en) * 1957-08-05 1960-05-03 Technicon Instr Pumps
US3137240A (en) * 1961-07-17 1964-06-16 Russell G Hunt Pumps
GB1031595A (en) * 1963-10-22 1966-06-02 William Alexander Wemyss Improvements in compressible tube pumps

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4417856A (en) * 1981-08-25 1983-11-29 Minissian Kevin G Peristaltic pump
US6036459A (en) * 1996-04-04 2000-03-14 Medtronic, Inc. Occlusion compensator for implantable peristaltic pump
WO2003100256A1 (en) * 2002-05-29 2003-12-04 Krister Juntunen Pump
US20070031272A1 (en) * 2005-08-05 2007-02-08 Molon Motor And Coil Corporation Peristaltic pump
US20090092507A1 (en) * 2005-08-05 2009-04-09 Ramirez Jr Emilio A Fluid pump systems
US20110058969A1 (en) * 2005-08-05 2011-03-10 Molon Motor And Coil Corporation Peristaltic Pump with Torque Relief
US8469682B2 (en) 2005-08-05 2013-06-25 Molon Motor And Coil Corporation Peristaltic pump with torque relief
US8585379B2 (en) 2005-08-05 2013-11-19 Molon Motor And Coil Corporation Peristaltic pump that is resistant to torques and vibrations
CN105121851A (zh) * 2013-03-05 2015-12-02 大陆汽车有限责任公司 用于对选择性催化还原设备定量供应液态添加剂的泵
US10054116B2 (en) 2013-03-05 2018-08-21 Continental Automotive Gmbh Pump for metering a liquid additive for a selective catalytic reduction device
WO2014135325A1 (de) * 2013-03-05 2014-09-12 Emitec Gesellschaft Für Emissionstechnologie Mbh Pumpe zur dosierung eines flüssigen additivs für eine selektive katalytische reduktions vorrichtung
CN105339662B (zh) * 2013-04-26 2019-01-11 大陆汽车有限责任公司 用于选择性催化还原装置的液体添加剂定量的泵
US9835154B2 (en) 2013-04-26 2017-12-05 Continental Automotive Gmbh Pump for metering a liquid additive for a selective catalytic reduction device
CN105339662A (zh) * 2013-04-26 2016-02-17 大陆汽车有限责任公司 用于选择性催化还原装置的液体添加剂定量的泵
WO2014173666A1 (de) * 2013-04-26 2014-10-30 Emitec Gesellschaft Für Emissionstechnologie Mbh Pumpe zur dosierung eines flüssigen additivs für eine selektive katalytische reduktions vorrichtung
CN105452660A (zh) * 2013-06-13 2016-03-30 大陆汽车有限责任公司 用于输送液体的泵
US20160138589A1 (en) * 2013-06-13 2016-05-19 Continental Automotive Gmbh Pump for delivering a liquid
US10393102B2 (en) 2013-06-13 2019-08-27 Continental Automotive Gmbh Pump for pumping a liquid along at least one delivery path delimited by a deformable element braced in an axial direction by a stress anchor projecting through a pump rotation shaft
CN106662102A (zh) * 2014-08-28 2017-05-10 大陆汽车有限责任公司 用于输送液体、特别是用于输送排气净化添加剂的泵
US10451059B2 (en) 2014-08-28 2019-10-22 Continental Automotive Gmbh Pump for conveying a fluid, in particular for conveying an exhaust gas cleaning additive
CN108278194A (zh) * 2018-01-23 2018-07-13 四川君汇科技有限公司 类齿结构的滚珠式蠕动泵
CN110388311A (zh) * 2019-07-24 2019-10-29 四川轻化工大学 一种自维护滚珠式蠕动泵

Also Published As

Publication number Publication date
GB1208712A (en) 1970-10-14
DE1901748A1 (de) 1969-09-04
JPS501922B1 (enrdf_load_stackoverflow) 1975-01-22
DE1901748C3 (de) 1979-09-13
FR1562957A (enrdf_load_stackoverflow) 1969-04-11
ES358398A1 (es) 1970-03-01
DE1901748B2 (de) 1979-01-18

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Legal Events

Date Code Title Description
AS Assignment

Owner name: SOCIETE DES CABLES DU MANS, FRANCE

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:BENDIX FRANCE;REEL/FRAME:004694/0407

Effective date: 19871128

AS Assignment

Owner name: SOCIETE DES CABLES DU MANS,FRANCE

Free format text: RE-RECORD OF AN INSTRUMENT RECORDED MAY 15, 1987 AT REEL 4694 FRAME 407-409 TO CORRECT THE PATENT NUMBER ERRORENOUSLY STATED AS 3,549,229;ASSIGNOR:BENDIX FRANCE, A CORP. OF FRANCE;REEL/FRAME:004763/0797

Effective date: 19871005

Owner name: SOCIETE DES CABLES DU MANS, 50, AVENUE DE LA LIBER

Free format text: RE-RECORD OF AN INSTRUMENT RECORDED MAY 15, 1987 AT REEL 4694 FRAME 407-409 TO CORRECT THE PATENT NUMBER ERRORENOUSLY STATED AS 3,549,229.;ASSIGNOR:BENDIX FRANCE, A CORP. OF FRANCE;REEL/FRAME:004763/0797

Effective date: 19871005

Owner name: SOCIETE DES CABLES DU MANS, FRANCE

Free format text: RE-RECORD OF AN INSTRUMENT RECORDED MAY 15, 1987 AT REEL 4694 FRAME 407-409 TO CORRECT THE PATENT NUMBER ERRORENOUSLY STATED AS 3,549,229;ASSIGNOR:BENDIX FRANCE;REEL/FRAME:004763/0797

Effective date: 19871005