US3610783A - Metering devices - Google Patents
Metering devices Download PDFInfo
- Publication number
- US3610783A US3610783A US874851A US3610783DA US3610783A US 3610783 A US3610783 A US 3610783A US 874851 A US874851 A US 874851A US 3610783D A US3610783D A US 3610783DA US 3610783 A US3610783 A US 3610783A
- Authority
- US
- United States
- Prior art keywords
- delivery
- pumps
- fulcrum
- predetermined
- metering device
- 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
Links
Images
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D11/00—Control of flow ratio
- G05D11/02—Controlling ratio of two or more flows of fluid or fluent material
- G05D11/13—Controlling ratio of two or more flows of fluid or fluent material characterised by the use of electric means
- G05D11/131—Controlling ratio of two or more flows of fluid or fluent material characterised by the use of electric means by measuring the values related to the quantity of the individual components
- G05D11/132—Controlling ratio of two or more flows of fluid or fluent material characterised by the use of electric means by measuring the values related to the quantity of the individual components by controlling the flow of the individual components
-
- 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
Definitions
- the invention relates to metering devices for delivering amounts of two or more materials in predetermined ratios and at predetermined rates.
- the metering device according to the invention is widely applicable in the metering of liquid and flowable materials and has particular use where .the materials are viscous liquids.
- a difficulty in previous and existing metering devices of this type is the lack of inaccurate control of the actual rates of delivery of the materials, particularly if the operating pressure and/or viscosity is likely to vary.
- the present invention consists in a metering device for delivering two or more materials characterized in that it comprises a positive displacement delivery pump for each materia], an hydraulic ram for driving the said delivery pumps at predetermined relative speeds, and a variable delivery hydraulic pump for driving the ram at a predetermined speed.
- the output of the variable delivery hydraulic pump is adjustable by manual control.
- the delivery pumps are connected by a rocking member having a variable fulcrum to vary the relative speeds of the delivery pumps.
- the drawing shows an hydraulic power pack comprising a reservoir 1 on which is mounted a synchronous electric motor 2 which drives a variable delivery pump 3, of which the output is adjustable by means of a manual lever 4.
- the pump 3 draws liquid from the reservoir 1 through a filter 5 and line 6 and delivers it by line 7 to a relief valve 8. From the valve 8 the liquid is normally delivered to an output line 9 including a shutoff valve 10.
- the line 9 delivers to a solenoid-operated changeover valve 11.
- a return from the valve 11 to the reservoir is provided in the form of a return line 12.
- a pair of delivery pumps 17 and 18, which are also double acting and of positive displacement type, are mounted on a common frame member 19 and driven by means of slides 20 and 21 mounted in further frame members and interconnected by a rocking member 22 which is pivoted at 23 to the slide 20 and cooperates with rollers 24 mounted on the slide 21.
- a variable fulcrum is provided for the rocking member 22 by means of rollers 25 mounted between a pair of trunnions 26 slidably mounted on frame member 27 and adjustable thereon by means of a handwheel 28 carrying a lead screw 29 cooperating with a captive nut 30 mounted on the trunnion
- the slide 20 is directly driven by the ram 14 so that there is a direct correlation between the output of the pump 17 and the output of the pump 3.
- the output of the pump 18 is related to the output of the pump 17 in variable manner depending on the position of the rollers 25.
- variable delivery pump with an accurately controlled delivery, renders the outputs of the delivery pumps [7 and 18 independent of the operating pressure, which depends on the viscosity of the components to be pumped, and which may vary under varying ambient conditions.
- a metering device for delivering at least two materials in a predetermined ratio and at predetennined rates: the improvement which comprises, a separate positive d
- the first-mentioned pumps comprise two pumps, and including means connecting said first-mentioned pumps to said means defining the fulcrum at fixed positions spaced from each other and disposed on opposite sides of said fulcrum.
- manual control means for varying the output of the variable delivery hydraulic pump.
- a synchronous electric motor driving said variable delivery hydraulic pump at a constant speed.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
- Catching Or Destruction (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB5463468 | 1968-11-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3610783A true US3610783A (en) | 1971-10-05 |
Family
ID=10471632
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US874851A Expired - Lifetime US3610783A (en) | 1968-11-18 | 1969-11-07 | Metering devices |
Country Status (3)
Country | Link |
---|---|
US (1) | US3610783A (zh) |
DE (1) | DE1957919A1 (zh) |
GB (1) | GB1227159A (zh) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3926345A (en) * | 1972-02-03 | 1975-12-16 | Stabilator Ab | Device for the batching of media |
US3932067A (en) * | 1974-02-27 | 1976-01-13 | Micromeritics Instrument Corporation | Liquid chromatography apparatus and method |
FR2444818A1 (fr) * | 1978-12-18 | 1980-07-18 | Hedrich Vakuumanlagen Wilhelm | Dispositif de commande pour pompes de dosage et/ou appareils analogues fonctionnant par des deplacements de pistons avec differents rapports de courses d'ouverture et de fermeture pour l'envoi synchrone de quantites inegales de substances de nature differents |
US4265858A (en) * | 1976-03-31 | 1981-05-05 | Nordson Corporation | Metering and mixing apparatus for multiple component |
US4312463A (en) * | 1980-02-04 | 1982-01-26 | Daby Lance H | Proportional pumping apparatus |
US4505405A (en) * | 1980-07-24 | 1985-03-19 | Graco Inc. | Proportional pumping system |
US5158438A (en) * | 1991-08-02 | 1992-10-27 | Graco Inc. | Quick mount pump frame |
US10705554B2 (en) | 2017-04-28 | 2020-07-07 | Graco Minnesota Inc. | Solenoid valve for a portable hydraulic power unit |
USD977426S1 (en) | 2019-12-13 | 2023-02-07 | Graco Minnesota Inc. | Hydraulic power pack |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2169703A (en) * | 1936-10-26 | 1939-08-15 | Richard C Mason | Pumping apparatus |
US2752989A (en) * | 1952-10-21 | 1956-07-03 | Jr Hugh Powell Jenkins | Reaction chamber and apparatus for delivering liquid propellants thereto at variable ratios and variable rates of delivery |
US3022738A (en) * | 1959-04-20 | 1962-02-27 | Krute Everett Archie | Pump systems |
-
1968
- 1968-11-18 GB GB5463468A patent/GB1227159A/en not_active Expired
-
1969
- 1969-11-07 US US874851A patent/US3610783A/en not_active Expired - Lifetime
- 1969-11-18 DE DE19691957919 patent/DE1957919A1/de active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2169703A (en) * | 1936-10-26 | 1939-08-15 | Richard C Mason | Pumping apparatus |
US2752989A (en) * | 1952-10-21 | 1956-07-03 | Jr Hugh Powell Jenkins | Reaction chamber and apparatus for delivering liquid propellants thereto at variable ratios and variable rates of delivery |
US3022738A (en) * | 1959-04-20 | 1962-02-27 | Krute Everett Archie | Pump systems |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3926345A (en) * | 1972-02-03 | 1975-12-16 | Stabilator Ab | Device for the batching of media |
US3932067A (en) * | 1974-02-27 | 1976-01-13 | Micromeritics Instrument Corporation | Liquid chromatography apparatus and method |
US4265858A (en) * | 1976-03-31 | 1981-05-05 | Nordson Corporation | Metering and mixing apparatus for multiple component |
FR2444818A1 (fr) * | 1978-12-18 | 1980-07-18 | Hedrich Vakuumanlagen Wilhelm | Dispositif de commande pour pompes de dosage et/ou appareils analogues fonctionnant par des deplacements de pistons avec differents rapports de courses d'ouverture et de fermeture pour l'envoi synchrone de quantites inegales de substances de nature differents |
US4317647A (en) * | 1978-12-18 | 1982-03-02 | Wilhelm Hedrich Vakuumanlagen Gmbh & Co. Kg | Dosing system |
US4312463A (en) * | 1980-02-04 | 1982-01-26 | Daby Lance H | Proportional pumping apparatus |
US4505405A (en) * | 1980-07-24 | 1985-03-19 | Graco Inc. | Proportional pumping system |
US5158438A (en) * | 1991-08-02 | 1992-10-27 | Graco Inc. | Quick mount pump frame |
US10705554B2 (en) | 2017-04-28 | 2020-07-07 | Graco Minnesota Inc. | Solenoid valve for a portable hydraulic power unit |
US11162482B2 (en) | 2017-04-28 | 2021-11-02 | Graco Minnesota Inc. | Portable hydraulic power unit having a pump fixed to an exterior side of a fluid supply tank |
US11441551B2 (en) | 2017-04-28 | 2022-09-13 | Graco Minnesota Inc. | Portable hydraulic power unit |
USD977426S1 (en) | 2019-12-13 | 2023-02-07 | Graco Minnesota Inc. | Hydraulic power pack |
Also Published As
Publication number | Publication date |
---|---|
GB1227159A (zh) | 1971-04-07 |
DE1957919A1 (de) | 1971-02-04 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US3610783A (en) | Metering devices | |
US2576747A (en) | Liquid dispenser with means to vary a measured discharge | |
US4172033A (en) | Artificial kidney proportioning system | |
US3554673A (en) | Syringe pump | |
US2914219A (en) | Apparatus for dispensing a mixture of two liquids in any continuously variable ratio | |
US4150769A (en) | Apparatus for metering, mixing and dispensing fluids | |
US3672389A (en) | Liquid proportioning device | |
GB1296354A (zh) | ||
EP0226070A3 (en) | Pump arrangement for delivering measured quantities of at least two components | |
US3107034A (en) | Liquid supply and mixing system | |
US4556367A (en) | Solvent delivery system | |
GB1417204A (en) | Device for the mixing of liquid media | |
US3613465A (en) | Ratio linkage assembly | |
GB1268111A (en) | An apparatus for metering and dispensing liquids | |
US2863471A (en) | Proportioner | |
US1872503A (en) | Proportional pumping apparatus | |
US3514222A (en) | Metering piston pump | |
US3899106A (en) | Liquid metering device | |
US2320727A (en) | Hydraulic speed control apparatus | |
US2280656A (en) | Feeding device | |
US2847940A (en) | Measuring pumps | |
DE3919698C1 (en) | Quasi-continuously working gravimetric doser - has pump supplying processing container from intermediate container on scales and supplied from reservoir by top-up pump | |
CN220667731U (zh) | 配比可调的双液注浆泵 | |
US3742820A (en) | Power transmission | |
US3710982A (en) | Plural source dispenser with interconnected discharge volume varying means |