US3521727A - Atomizer for lubricants - Google Patents

Atomizer for lubricants Download PDF

Info

Publication number
US3521727A
US3521727A US706386A US3521727DA US3521727A US 3521727 A US3521727 A US 3521727A US 706386 A US706386 A US 706386A US 3521727D A US3521727D A US 3521727DA US 3521727 A US3521727 A US 3521727A
Authority
US
United States
Prior art keywords
lubricant
passage
medium
atomizer
container
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
US706386A
Other languages
English (en)
Inventor
Herbert Sochting
Gerhard Hitschmann
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.)
Hoerbiger Ventilwerke GmbH and Co KG
Original Assignee
Hoerbiger Ventilwerke GmbH and Co KG
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 Hoerbiger Ventilwerke GmbH and Co KG filed Critical Hoerbiger Ventilwerke GmbH and Co KG
Application granted granted Critical
Publication of US3521727A publication Critical patent/US3521727A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16N—LUBRICATING
    • F16N7/00—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated
    • F16N7/30—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated the oil being fed or carried along by another fluid
    • F16N7/32—Mist lubrication
    • F16N7/34—Atomising devices for oil

Definitions

  • the invention relates to an atomizer for lubricants and more particularly to such atomizers comprising a container for the lubricant and an atomizer head in the passage of which permitting the flow of a gaseous medium therethrough a spring-loaded automatic control valve opening in the direction provided for the ow of the medium and controlling the cross-sectional area of the passage is incorporated.
  • Atomizers of this type serve mainly for the production of a fine oil spray in compressed-air lines for the lubrication of compressed-air installations, the compressed ail delivered to the said installations owing through the passage provided in the atomizer head inside which it is supplied with a lubricant spray.
  • the transportability of the lubricant admixed to the air current is known to depend on the size of the drops of lubricant, the velocity of the air current and the length and design of the deli-very pipe. If the pim is of considerable length and presents narrow bends, a substantial portion of the lubricant will be deposited on the inner surface of the pipe and will reach the points requiring lubrication at a later stage only, and in some instances, by surges.
  • bypass atomizers wherein the medium flowing therethrough is divided into a main stream owing through a throttled cross-sectional area wherein the lubricant is admixed, and into a by-pass stream controlled by means of a check Valve
  • the check valve is occasionally designed in such a manner as to provide for a by-pass ilow in opposite directions.
  • the first-mentioned type of atomizer featuring a passage the cross-sectional area of which is infinitely variable by means of a control valve for the purpose of adapting the differential head produced and consequently, the supply of oil automatically to the amount of air owing through the passage at any given moment, a similar reverse flow of the medium is not possible because the passage lis closed by the control valve.
  • the use of atomizers comprising a control valve for the infinitely variable regulation of the dilferential head in the passage is desirable because with this type of atomizers it is possible to achieve a substantially constant mixture ratio between the passing air and the admiXed lubricant also with varying throughputs of compressed air.
  • the invention consists in an atomizer for lubricants comprising a container for the lubricant and an atomizer head connected to the container, the atomizer head having a passage for the ow of a gaseous medium therethrough, the lubricant being admixed to the medium flowing through sai-d passage, spring-loaded, automatic control valve means regulating the cross-sectional area of the said passage being incorporated in the passage and operative to open in one direction provided for the forward flow of the medium through the atomizer head, a separate backow passageway by-passing the control valve means being provided for the reverse ow of the medium in an opposite direction to the forward ow of the medium through the atomizer head, and throttling means being incorporated in the said backow passageway.
  • the throttling means is formed by a check valve incorporated in the backflow passageway and opening in the direction of the reverse flow of the medium.
  • the pressure prevailing-as viewed in the direction of the normal forward flow through the passage-on the downstream side of the control valve means where the lubricant is delivered to the passage is greater than on the upstream side in front of the control valve means so that the supply of lubricant from the container into the passage is stopped during the reverse flow.
  • the backow passageway need be narrowed only slightly by the throttling means, so that the resulting throttling of the reverse flow of the medium can be kept within tolerable loW limits. Consequently, the invention provides for an advantageous ow of the medium through the atomizer in either direction, lubricant being admixed to the medium during the normal forward ilo-w only.
  • the backflow passageway may extend through the lubricant container which communicates with the passage for the forward flow of the medium via ports located upstream and downstream of the control valve means, which embodiment requires only minor alterations of atomizer heads of conventional design.
  • an intermediate plate may be located in the lubricant container below the two aforesaid ports and partly covering the same, the said intermediate plate being preferably suspended from the atomizer head and deflecting the backflowing medium from the lubricant in the container.
  • the port located on the downstream side of the control valve means is designed with a smaller cross-sectional area than the port located on the upstream side, the throttling means being formed by the smaller port only the throttling action of which prevents any lubricant supply during the reverse flow of the medium whereas during the forward ow of the medium in the normal direction through the passage it permits the bulid-up of an adequate pressure in the lubricant container for the delivery of lubricant.
  • the port located on the downstream side of the control valve means controlled by the closing body of a spring-loaded check valve opening in the direction of the reverse yilow of the medium and forming the throttling means of the backflow passageway.
  • the ports it is possible for the ports to be of suflicient size to suit prevailing operating conditions so that even major backowing quantities are allowed to pass through the atomizer without objectionable throttling.
  • Another advantage of this arrangement resides in the fact that during the forward ow of the medium through the atomizer the backow passageway by-passing the control valve means is kept closed, so that the supply of lubricant is by no means hampered and moreover, the response limit of the atomized is kept at the desired low level.
  • the said check valve is preferably secured to the intermediate plate located in the container.
  • the atomizer shown comprises a lubricant container 1, topped by 'an atomizer head 2 and a drip cowl 3 preferably made of a transparent material.
  • a passage 4 is provided through which the medium to be supplied with lubricant, such as for example, air to be used for the operation of compressed-air installations is passed.
  • a control valve 5 the hollow closing body of which is guided in the passage by means of three guide lugs and loaded in the closin g direction by means of a comparatively weak spring 7 resting on ⁇ a mandrel 6.
  • the mandrel 6 is secured by means of a screw bolt 8 in the axis of the passage 4.
  • the control valve 5 When the medium flows through the passage 4 in the direction of the arrows, which may be called the normal forward direction, the control valve 5 uncovers a crosssectional area the size of which varies depending on the quantity of the medium owing therethrough, thereby producing 'a certain pressure drop or diiferential head which is used to deliver the lubricant from the container 1 into the passage 4.
  • the section of the passage 4 located upstream the control valve 5 as viewed in the direction of ow of the medium communicates via a port 9 with the container l, whereas the lubricant inlet 10 in the passage 4 is located on the downstream side of the control valve 5 where the lpressure prevailing during the flow of the medium is lower than the pressure prevailing on the upstream side of the control valve.
  • the lubricant in the container 1 is delivered 4 through the standpipe 11 and a delivery duct 12 located in the atomizer head 2 and in the drip cowl 3 to the drip cowl 3, where it drips into a recess 14 provided at the bottom of the cavity 13, from where it passes nally through another duct 15 at the inlet 10 into the passage 4.
  • a suction filter 16 made of porous bronze, for example, as well as a check valve 17 are provided, the said check valve preventing the lubricant from flowing back into the container 1, thereby ensuring a brief response time of the atomizer.
  • a backflow passageway by-passing the control valve which in the embodiment of the invention shown extends through the lubricant container 1 and is defined by the above-mentioned port 9 and by an additional port 18vconnecting the passage 4 with the container 11 on the side of the control valve 5 opposite port 9.
  • Port 18 is controlled by means of a check valve 19 whose closing body carrying a packing is pressed against the port 18 by the action of a spring 20 and opens in the direction of the reverse flow.
  • an intermediate plate 21 is secured to the standpipe 11 in spaced relation to the atomizer head 2, the said intermediate plate preferably also holding the check valve 19 in position.
  • the intermediate plate 21 closes the container only in part, so that the pressure of the medium normally owing through the passage 4 in the direction of the arrows prevailing in front of the control valve 5 is able to impinge upon the lubricant level in the container 1 for the purpose of initiating the delivery of lubricant.
  • the control valve 5 uncovers, against the action of its spring 7, a section of the cross-sectional area of the passage 4 of a size depending on the amount of the medium flowing therethrough, so that it is possible for the medium to be delivered susbtantially unimpaired to the associated installations.
  • lubricant is delivered from the container 1 at the inlet 10 of the passage 4 and admixed to the medium owing therethrough as a ne spray.
  • the amount of lubricant thus supplied to the medium can be accurately determined by counting the drops falling into the cavity 13 of the drip cowl 3 and regulated as required by means of a throttle incorporated in the delivery duct 12 designated by reference 22 and only partly sho-wn in the drawing.
  • the check valve 19 produces a minor differential head between the sections of the passage 4 located on both sides of the control valve 5, so that the pressure prevailing at the lubricant inlet 10 of the passage is slightly higher than the pressure prevailing in front of the control valve 5 and consequently, in the container 1, thus preventing the delivery of lubricant to the passage 4.
  • the size of this differential head can be selected as required by appropriately dimensioning the spring 20 of the check valve 19.
  • the atomizer according to the invention is suitable not only for the lubrication of compressed-air installations but it also permits atomization of any kind of material and its admixture to a medium flowing through the passage. lFor example, it can be used to advantage for the atomization of an anti-freeze agent. Furthermore, it is possible to employ it for insecticide purposes.
  • the embodiment of the invention as hereabove described may be modied in such a manner that instead of traversing the lubricant container the reverse ow passes through a separate duct in the atomizer head or through a pipeline connected to it on the outside.
  • An atomizer for lubricants comprising a container for the lubricant and an atomizer head connected to the container, the atomizer head having a passage for the ow of a gaseous medium therethrou-gh, the lubricant being admixed to the medium flowing through said passage by means of an inlet opening provided in the passage, springloaded automatic control valve means incorporated in the passage and regulating at a point upstream of the said inlet opening the cross-sectional area of the said passage and being operative to open in one direction provided for the forward flow of the medium through the atomizer head, said passage having a separate backow passageway bypassing a portion of the ow passage which is that portion in which there are provided the control valve means, and the inlet opening for the lubricant, said backow passageway serving for the reverse ow of the medium in an opposite direction to the forward ilow of the medium through the atomizer head, and throttling means provided in the said backflow passageway.
  • the throttling means being formed by a check valve incorporated in the backow passageway and opening in the direction of the reverse flow of the medium.
  • An atomizer according to claim 3 wherein an intermediate plate is provided in the lubricant container below the two ports so as to partly cover the said container, the said intermediate plate diverting the backilowing medium from the lubricant in the said container.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Mechanical Engineering (AREA)
  • Nozzles (AREA)
  • Safety Valves (AREA)
US706386A 1967-02-24 1968-02-19 Atomizer for lubricants Expired - Lifetime US3521727A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT183367A AT267975B (de) 1967-02-24 1967-02-24 Zerstäuber für Schmierstoffe u.dgl.

Publications (1)

Publication Number Publication Date
US3521727A true US3521727A (en) 1970-07-28

Family

ID=3521983

Family Applications (1)

Application Number Title Priority Date Filing Date
US706386A Expired - Lifetime US3521727A (en) 1967-02-24 1968-02-19 Atomizer for lubricants

Country Status (6)

Country Link
US (1) US3521727A (de)
AT (1) AT267975B (de)
DE (1) DE1625223A1 (de)
FR (1) FR1553605A (de)
GB (1) GB1163869A (de)
SE (1) SE319049B (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20190211779A1 (en) * 2018-01-11 2019-07-11 Ford Global Technologies, Llc Methods and systems for a lubricating device

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS521370A (en) * 1975-06-24 1977-01-07 Konan Denki Kk Lubricator
CH621493A5 (de) * 1976-07-16 1981-02-13 Festo Maschf Stoll G

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2105490A (en) * 1934-07-14 1938-01-18 Sullivan Machinery Co Lubricator
US3023849A (en) * 1960-05-16 1962-03-06 Watts Regulator Co Air line lubricator
US3131786A (en) * 1962-04-30 1964-05-05 Master Pneumatic Inc Air line lubricator
US3244257A (en) * 1964-01-13 1966-04-05 Aro Corp Airline oiler
US3266597A (en) * 1963-06-25 1966-08-16 Hoerbiger Ventilwerke Ag Atomizer

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2105490A (en) * 1934-07-14 1938-01-18 Sullivan Machinery Co Lubricator
US3023849A (en) * 1960-05-16 1962-03-06 Watts Regulator Co Air line lubricator
US3131786A (en) * 1962-04-30 1964-05-05 Master Pneumatic Inc Air line lubricator
US3266597A (en) * 1963-06-25 1966-08-16 Hoerbiger Ventilwerke Ag Atomizer
US3244257A (en) * 1964-01-13 1966-04-05 Aro Corp Airline oiler

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20190211779A1 (en) * 2018-01-11 2019-07-11 Ford Global Technologies, Llc Methods and systems for a lubricating device
US10968868B2 (en) * 2018-01-11 2021-04-06 Ford Global Technologies, Llc Methods and systems for a lubricating device

Also Published As

Publication number Publication date
DE1625223A1 (de) 1970-07-16
AT267975B (de) 1969-01-27
GB1163869A (en) 1969-09-10
SE319049B (de) 1969-12-22
FR1553605A (de) 1969-01-10

Similar Documents

Publication Publication Date Title
US2887181A (en) Air line lubricator
US5505566A (en) Powder injector
KR910020364A (ko) 공기 라인 윤활기를 갖는 공구 및 작업부재 윤활 시스템
US2747688A (en) Lubricator
US3029029A (en) Dual-orifice return flow nozzle
USRE24291E (en) Device for introducing atomized liquid into gas under pressure
US2835267A (en) Air line lubricator
US3521727A (en) Atomizer for lubricants
US2842159A (en) Injector valve
US3572469A (en) Air line lubricating device
US2308773A (en) Lubricator
GB1327848A (en) Air line lubricator
US3243014A (en) Process for mixing gas with oil in droplet form in pneumatic installations for the purpose of mist lubrication, and an arrangement for carrying out the process
US3244257A (en) Airline oiler
US3759449A (en) Device for producing coolant mist
US2751045A (en) Venturi plug
US3131786A (en) Air line lubricator
US3901263A (en) Regulating valve for fuel metering device, especially for the combustion chamber of an aerojet engine
US3411609A (en) Airline oiler
US3266597A (en) Atomizer
US3064760A (en) Liquid mist generating device
US3439777A (en) Oil mist lubricator
US2564309A (en) Lubricator with secondary air circuit
US3217731A (en) Hydraulic flow control valve unit
US1959909A (en) Lubricant nipple