ES1202586U - Oil driver device through compressed air and flow divider (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Oil impeller by means of compressed air and flow divider, characterized in that it is constituted from a main body (10) in which a longitudinal chamber (11) of input is established in which it adjusts threadedly a supply piece (12), to which a second connector (13) is connected, associated with an oil supply conduit (5) coming from a pumping system, it being provided that radially to said longitudinal chamber (11) a second chamber is established (17) of pressurized air inlet through a connector (15), with the particularity that the feed part (12) internally includes a duct (18) in which progressive diameter reductions are defined, based on sectors trunk-conical and cylindrical successive, while said feed piece (12) externally has an end neck that partially occupies the longitudinal chamber (11), defining between said neck and longitudinal chamber (11) steps (20) for the pressurized air, it being provided that both air and oil pressure inlets coincide in a sub-chamber (21) of smaller diameter, in which the longitudinal chamber (11) is extended, which it is extended in turn in 1 or 2 parallel cylindrical holes (22, 22', 22 "), in which/they are defined radially and in opposition a pair of ducts (24) through which the air flow -oil is divided and redirected to two circuits (6) and (7) terminated in respective connectors (25), coupling to the air-lubricant application circuits, having been provided that in the case of a single cylindrical hole participating (22), therein a helical element (26) for guiding the air-oil flow is established. (Machine-translation by Google Translate, not legally binding)

Description

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OIL DRIVING DEVICE BY COMPRESSED AIR AND DIVIDER

FLOW

DESCRIPTION

OBJECT OF THE INVENTION

The present invention relates to a device for the impulsion of oil by means of compressed air, as well as for the division of the air-oil flow in lubrication systems, and more specifically in lubrication systems specially designed for implantation in railways, in order to lubricate the wheels of the bogies by means of a series of nozzles.

The object of the invention is to provide the sector with a device that allows to carry out an impulsion of the oil by means of its pulverization in air, facilitating its transport and application through the corresponding nozzles, also affecting the invention to the means of distribution of said flow towards a pair of independent circuits in which said nozzles are installed.

BACKGROUND OF THE INVENTION

In the field of practical application of the invention, specifically railroad lubrication systems, it is usual to use pneumatic pumps that propel the oil, then be transported with air and finally be sprayed on the wheels of the bogies or elements of which be concerned.

In most cases, this air / oil supply starts in the pumping system itself, and then the flow obtained is divided when it approaches the nozzles.

In the event that the pumping equipment is mounted very far from the nozzles, and having to travel the air-oil a relatively long distance, the flow is affected by a loss of load derived from the length of the duct, which affects also to the quality of the spray on the wheels, in terms of speed of response.

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Trying to obviate this problem, it is known patent ES 2109569, which describes a lubrication system for railway bogies comprising a circuit of supply of pressurized air in which a drive lubricant pump, a feeder device participates of air to the oil flow and divider of said air-oil flow to the lubrication nozzles of the bogies, this element being separated from the oil pump.

Although with this structuring the problem of the aforementioned pressure losses is solved, the internal structure of said chamber in which the air and the oil converge does not at all facilitate a distribution as homogeneous as possible between the air and the oil to be sprayed , so that the oil, by its very nature, is concentrated in large drops and consequently heavy, which hinders its transport by air to the nozzles.

DESCRIPTION OF THE INVENTION

The oil impeller device by means of compressed air and flow divider which is recommended solves in a completely satisfactory manner the problem described above, based on a simple but effective solution.

To this end, the device is based on a pair of connectors with a non-return valve that are associated with the corresponding circuits of supply of pressurized air and oil under pressure that arrive separately, so that the main body of the device includes a longitudinal chamber in the that a supply part is arranged, to which the connector corresponding to the oil supply circuit is axially connected, while radially to said chamber a second chamber is established to which the connector associated to the pressurized air circuit is associated.

More specifically, the supply part internally includes a conduit in which progressive diameter reductions are defined, which cause an increase in pressure and, in turn, a pulverization of the oil at the exit of said part on the bottom of the longitudinal chamber, which significantly favors its transport by means of the compressed air introduced in the device, while said piece has a neck

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end that partially occupies said chamber, thereby defining a series of axial steps through which the pressurized air flows, oil and air coinciding in a sub-chamber of smaller diameter, in which the main chamber is prolonged.

So that the division of the flow is as homogeneous and equitable as possible, after said subchamber there are two conduits of the same diameter that, interchangeably, can be arranged:

-in parallel holes longitudinally -by means of helical holes

These guiding ducts flow into 2 radial and opposite holes that connect respectively with the nozzle feed circuits.

For manufacturing reasons, since the helical part is an element independent of the cavity in which it is inserted, it requires a closure plug for the access hole.

The device of the invention allows its installation as close as possible to the nozzles, so that it provides a greater and faster response capacity with respect to the operation of the pump.

It only remains to indicate finally that the device described is optimal for the application of lubricants that incorporate solid additives.

DESCRIPTION OF THE DRAWINGS

To complement the description that will then be carried out and in order to help a better understanding of the features of the invention, according to a preferred example of practical realization thereof, a set of drawings is accompanied as an integral part of said description. where, with an illustrative and non-limiting nature, the following has been represented:

Figure 1 shows a sectional view of the device of the invention with two holes.

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of distribution by means of the insertion of a helical piece.

Figure 2.- Shows a sectional view of the device of the invention with 2 distribution holes by means of longitudinal holes.

Figure 3.- Shows a schematic plan view of the bogie of a railroad in which a lubrication system for it participates in which an oil impeller device is installed by means of compressed air and flow divider made in accordance with the object of the present invention.

PREFERRED EMBODIMENT OF THE INVENTION

In view of the figures summarized, it can be seen how the oil impeller device by means of compressed air and flow divider that is recommended, referenced in general with (1) in figure 3 is intended to be implanted in a lubrication circuit in which it participates a source of pressurized air supply (2) and a pumping system (3) of lubricant, the device being designed to combine the flow supplied by both pipes (4) and (5) in order to achieve maximum understanding for the same, as well as to divide the flow obtained so that it is redirected through two independent circuits (6 and 7) to respective nozzles (8) through which to apply the oil sprayed and propelled by the air on the wheels (9 ) from the bogie.

Well, according to the invention, the dividing device is constituted from a main body (10) in which a longitudinal input chamber (11) is established in which it adjusts a feeding piece (12), to which a second connector (13) is connected, by means of which the device is associated to the oil supply line (5), this connector (13) having a non-return valve (14) to avoid back pressure.

On the other hand, the pressurized air coming from the conduction (4) perpendicularly accesses the longitudinal chamber (11) through a connector (15) that is threaded to a radial chamber (17) that communicates radially to the longitudinal chamber ( 11), said connector (15) also having the corresponding non-return valve (16) to avoid back pressure.

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Well, the feeding piece (12) internally includes a conduit (18) in which progressive diameter reductions are defined, based on successive trunk-conical and cylindrical sectors, which facilitates the division of the oil droplets, breaking this in micro-drops, configuration that causes an increase in the pressure of the oil at the outlet (19) of said piece, in correspondence with the bottom of the longitudinal chamber (11).

At the same time, the mentioned feeding piece (12) has an end neck that does not fully occupy the longitudinal chamber (11), but between them some steps (20) are defined through which the pressurized air flows, coinciding with oil and air in a subchamber (21) of smaller diameter, in which the longitudinal chamber (11) is prolonged.

Well, this sub-camera (21) extends along the main body (10), indistinctly in 2 modes:

-in a cylindrical hole (22) that extends to the opposite end of said main body, ending in an access plug (23) inside said hole, where a helical part (26) is established, perpendicular to which they establish and in diametral opposition, two conduits (24), finished off in respective connectors (25).

-in two cylindrical and parallel holes (22 ’and 22’) from which perpendicularly respective conduits (24) terminated in the corresponding connectors (25) emerge.

In both cases, the air-oil flow to the circuits (6) and (7) associated with the nozzles (8) is distributed equivalently through the pair of ducts (24).

Claims (1)

5 10 fifteen twenty 25 30 1a.- Oil impeller device by means of compressed air and flow divider, characterized in that it is constituted from a main body (10) in which a longitudinal inlet chamber (11) is established in which a feed piece is threadedly adjusted (12), to which a second connector (13) is connected, associates with an oil supply line (5) from a pumping system, having provided that a second chamber is established radially to said longitudinal chamber (11) (17) of pressurized air inlet through a connector (15), with the particular feature that the supply part (12) internally includes a duct (18) in which progressive diameter reductions are defined, based on successive trunk-conical and cylindrical sectors, while said feed piece (12) externally has an end neck that partially occupies the longitudinal chamber (11), defining between said neck and longitudinal chamber (11) steps (20) for pressurized air, having provided that both air and oil pressure inlets coincide in a sub-chamber (21) of smaller diameter, in which the longitudinal chamber (11) is prolonged, which in turn extends into 1 or 2 parallel cylindrical holes (22, 22 ', 22' '), in which / are defined radially and in opposition a pair of ducts (24) through which the air-oil flow is divided and redirected towards two circuits (6) and (7) terminated in respective connectors (25), of coupling to the air-lubricant application circuits, having provided that in the event that a single cylindrical orifice (22) participates, it establish a helical element (26) to guide the air-oil flow. 2a.- Oil impeller device by means of compressed air and flow divider, according to claim 1a, characterized in that the connector (13) of the pressurized oil supply system includes an anti-return valve (14). 3a.- Oil impeller device by means of compressed air and flow divider, according to claim 1a, characterized in that the connector (15) of the pressurized air supply system includes an anti-return valve (16).