KR100307752B1 - Lubricant pumps for engines or compressors - Google Patents

Abstract

The present invention relates to a lubricating oil pump used in a multi-cylinder cylinder engine or a compressor, in particular a two-stroke diesel engine, comprising a plurality of housings (G) each having a plurality of pump elements (E) and lubrication for the pump elements (I). The pump shaft 1 and an outlet path 23 for connecting the pump elements E to the lubrication connecting portion 12 so as to be arranged in a row and connected to the housing G. G), the oil flow path 3 and the oil supply source are connected to the pump elements E of a series of housings G arranged so that a plurality of pump elements E are connected in a row, or any one housing (G) has a structure further provided with means for selectively connecting to the pump element (E).

Description

Lube oil pumps for engines or compressors

The present invention relates to a lubricating oil pump used in a multi-cylinder engine or a compressor, and more particularly to a lubricating oil pump for a two-stroke diesel engine.

As a conventional two-stroke diesel engine lubricant pump, Technical Data Sheet DKS-1-900-00, published in September 1992 by Joseph Vogele AG, Germany, describes the “O-schmierpumpe Typ T”. A paper entitled “Lubricant Pumps is used for medium and large diesel engines or compressors. The lubricant pumps have a circular shape along the substrate with a plurality of pump elements all contained within the engine housing. And side by side in the axial direction with respect to the drive side. In addition, one suction pipe is connected to each pump element, while one or two pressure ducts are connected to the pressure outlet of the housing cover from each pump element, and the lubricant is supplied into the housing through a hydraulic system that is not pressurized or pressurized. It is supposed to be. In most cases, a plurality of housings are arranged side by side in a lubricating oil pump to be driven by a common drive source, and each housing has an inlet connected to the lubricating oil source via a conduit.

On the other hand, the lubricating oil pump described in Swiss Patent Application Publication No. CH-A-24 39 01 has a plurality of pump elements and a plurality of housings in which one drive unit is accommodated, while connecting bolts in which these housings extend in the longitudinal direction. It is connected to each other by the structure.

In addition, the lubricating oil and fuel oil feeding device described in British Patent Application Publication No. GB-A-73 84 51 are applied to diesel engines that can be used as light heavy oil fuels. The pump is equipped with a complex pipeline system that allows each lubricant to be selectively changed.

In addition, the lubrication system described in the French patent application FR-A-676 243 is provided with a lubrication path that is equipped with a device for cleaning and filtering lubricating oil, and these devices can be selectively separated by a multidirectional valve. have.

In addition, the lubrication device known and disclosed in British Patent Application Publication No. GB-A-464 926 is provided with a plurality of reservoirs for accommodating different lubricating oils to be selectively supplied to each lubrication portion, while one adjustable valve means is provided. Each channel is connected to each other and the unnecessary channel is blocked. The supply of lubricating oil to the lubrication portion is to be made continuously in order.

However, the conventional lubricating oil pump as described above is expensive to install the pipe as a whole, and the structure is complicated and expensive to manufacture. In addition, if any one cylinder of the engine to be lubricated fails or needs repair, the cylinder must be supplied with a special commissioning oil during the commissioning period, but the other cylinders must be supplied with a standard oil during that period. It takes a lot of time and trouble to change the flow path system to change the test oil into a test oil or from a test oil to a standard oil. Moreover, the conventionally known lubricating oil pump is limited in performance due to its structure and driving principle. Because of this, it is difficult to meet the lubrication performance required in current medium and large engines.

The present invention has been invented in view of the above circumstances, and it is compact, simple in structure, and inexpensive to manufacture, but without expensive technical problems, it is possible to quickly change from standard oil to test oil for multi-cylinder engine or compression. It is an object of the present invention to provide a lubricating oil pump.

1 is a block diagram showing a cylinder lubrication system with a lubricant pump for a cylinder.

2 is a block diagram showing in detail the pump module.

3 is a partial front sectional view of a lubricating oil pump having three pump modules for all six cylinders shown in FIG.

4 is a partial plan cross-sectional view of the lubricating oil pump shown in FIG.

5 is a view showing in detail the connection of the pump head.

* Explanation of symbols for main parts of the drawings

A: connection part B: drive part

C: Junction Feeder D: Breaker

E: Pump element F: Filter

G: Housing H: Pollution Measuring Device

J: Overpressure regulator K: Coupling

L: Burst member M: Pump module

N: Optical flow control device O: Electrical flow control device

P: Lube oil pump R: Check valve

T: Feeder V: Flow regulator

W, W ′: Distributor X: Speed measuring device

Z1 ~ Z6: Cylinder

The present invention for achieving the above object is a plurality of housings each having a plurality of pump elements connected in a row to be interlocked with each other, the eccentricity is installed in the housing and connected to the drive source to cooperate with the pump element An lubricating oil pump for a multi-cylinder engine or a compressor, comprising a shaft portion and an outlet path connecting each of the pump elements to the lubrication connecting portion, the housing being connected to the eccentric shaft portion in order to communicate with each other. Inside the housing, a first oil passage consisting of a distribution hole formed in the housing, and another oil passage consisting of a distribution hole inside the housing to connect the first oil passage and each of the pump elements, To the flow hole inside the housing that connects the oil channel connection part and each pump element. The second oil flow path and a shutoff device for selectively separating the respective pump elements from the first oil flow path while the pump element is connected to the second oil flow path. .

Here, the blocking device is to separate the first oil flow path from each of the pump elements so that the second oil tank connecting portion of the housing is connected to the second oil tank, the second oil tank connecting portion of the housing The measuring device is installed. In addition, the connecting portion connected to the second oil tank of the housing is formed with a receiving hole for installing the blocking device to be selectively operated.

Each of the first oil passages of each of the housings is interconnected to each other to form a single line of the first lubricant supply line that passes through all of the heat-generating housings to the first oil tank.

In addition, the housing is formed of a rectangular block each supporting the eccentric shaft portion, wherein two or more receiving portions for installing the pump element therein are parallel with the axis of the eccentric shaft portion or in a 90 ° or 180 ° direction with respect to the axis. And a pair of pump elements are accommodated in the receiving portions respectively formed in the mutually adjacent outer wall of two adjacent housings among the said housing | casings.

Each of the pump elements is provided with a flow control device for adjusting the discharged flow rate, while each of the outlet paths is provided with a flow plotter equipped with a plotter in the visible tube so that the naked eye can be observed.

In addition, an overpressure path composed of through holes is formed in each of the housings, and the outlet path is connected to the overpressure paths via a rupture element, and the electric wave pressure control device is connected to the overpressure paths.

In addition, the plurality of housing screws are formed to have a length approximately equal to the length of the housing so that the plurality of housings arranged in a row are connected to each other by the connection screws so that adjacent connection portions are connected to each other. It is adapted to be screwed into the female screw portion formed inside the screw-shaped bushing which is fitted into the thickly screwed female screw portion.

One or more heating ducts are formed in the housing, each of which has a through hole through which a fruit or a heating member passes through the interior of the housing.

Therefore, in the present invention, lubricating oil can be supplied together to all the housings of the lubricating oil pump, so that a complicated distribution system for supplying oil to each pump element is not necessary. Thus, the housings can only be connected in communication with each other so that all pump elements can be supplied with lubricating oil from a common oil source. For example, even when a trial run oil or another type of lubricating oil is to be replaced in one housing in the lubricating oil pump, it can be easily changed at any time without changing the flow passage system at all. If the pump element of the changed housing is connected to each oil supply after changing the housing, lubricating oil is continuously supplied from the common oil supply to all other pump elements that do not change the housing. Here, since each housing is in the form of a distributor block, it is possible to implement an efficient lubricating oil pump that can be compact and structurally strong overall and satisfy the best lubricating performance.

It is also possible, for example, to separate the housing which is exchanged for commissioning oil from a standard oil source, so that it is possible to supply different types of lubricating oil, such as commissioning oil, individually without compromising the proper supply to other housings.

In addition, a source of commissioning oil and / or a consumption measuring device must be connected to the other of the housing, the pump element of which can supply different types of oil from the pump element of the other housing of the lubricating oil pump. Thus, the oil consumption of the pump element of this housing can be measured without compromising the lubrication function of the other housing, so that the consumption of oil for commissioning can be easily measured by this method, for example. In order to measure the consumption of standard oils, the standard oils must be supplied via different connections, which are done individually in each housing.

On the other hand, another connection can be designed as a receiving hole for another interruption device, for example, an oil supply source for commissioning is permanently connected to this connection. Even when the oil is changed, only two shutoff devices are activated and no change is required inside the housing.

In addition, the structural simplicity is achieved when the distribution duct is formed into a hole in the process of manufacturing the housing, and the distribution channel of the hole is more suitable for high pressure than the tube, and a blocking device for separating the housing from the common source is provided. By accommodating, structural space may be saved.

The pump element is directly driven by an eccentric shaft portion supported in the housing, and has a block-like structure, which is advantageous in manufacturing. In addition, as with the pressure control duct, holes for the receiving portion, the distribution logging duct and the eccentric shaft portion can be manufactured in a series of continuous methods at the manufacturing plant. The lubricating oil pump is designed so that several pump elements are provided in the housing so that only one or as many lubricating connections on the side of the housing can be provided as possible, so that each housing forms a combination with a compact and totally shockproof structure. It is a very compact and stable structure.

In addition, the housing has a structure in which four pump elements connected to each of the lubrication connecting parts are densely arranged to form a group, and all the lubricating connecting parts and the operation unit of the blocking device are arranged on the same side of the housing to be operationally advantageous. have.

Further, the flow rate can be adjusted at each lubrication connection portion simply without entering the inside of the housing, thereby enabling a reliable detection of the lubrication function. All components may be assembled inside the housing or placed on the housing in a clear manner. The reliability of the operation is greatly improved by at least partial double retrieval.

All housings of the lubricating oil pump are inspected around failure in case of overpressure, and the inspection function is performed in a simple manner by means of a rupture element in another pump element that can still be operated in the event of a pump element failure.

Each housing is provided with one heating duct part in order to satisfy special requirements, and the heating duct part selectively heats the housing or only one housing. Superheated steam or a heating element is introduced into the heating duct portion, which is made by connecting to an adjacent housing after the connection to the distribution path is already exposed at each opening of the heating duct portion in the housing wall.

In addition, the supply of lubricating oil to the load-dependent lubrication point is made when the speed or torque of the three-phase motor is varied on the control side via the frequency converter. In case of emergency, such as when the frequency converter fails, the three-phase motor It operates at a speed determined by a normal main frequency. However, other valid drive sources may be used to jointly drive all the pump modules coupled to the lubricating oil pump.

In addition, each of the housings may be provided with electrical equipment in advance. For example, a cable device is installed in the cable duct of the housing. The cable device may, for convenience, extend through all of the housings that are joined to each other through the mating cable connectors. Signals or data prepared for supply current and inspection or control for electrical or electronic components are transmitted through the cable system.

EXAMPLE

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The cylinder lubrication system 5 for lubricating six cylinders Z1 to Z6 of a medium or large diesel engine or a compressor, such as a two-stroke marine diesel engine, is a lubricating oil pump consisting of three pump modules M as main components. P), a plurality of distributors (W, W ') corresponding to the number of cylinders, and oil tanks (71, 72) for accommodating standard oil and test run oil, respectively. ) Is provided with four pump elements (E) for supplying lubricating oil to the outlet valve via the distributor W via the upper and lower lubricating surfaces of the cylinders Zl to Z6 and the downstream distributor W '. It is to be mounted in a housing (G) in the form of a block.

Each of the housings G is provided so that the eccentric shaft portions 1 ', 1', 1 '" constituting the pump shaft 1 connected to a common drive source B are respectively supported. 1 ', 1', 1 '" are intended to drive the pump element I directly and are to be interconnected by coupling 狀). Moreover, the said some housing G is also connected so that it may be arrange | positioned continuously by the coupling part 2. As shown in FIG. In addition, the first oil flow paths 3 ', 3 ″, 3' ″ each having one hole are formed in each of the housings G, and the housings G are connected to each other so that they are continuously connected to each other. It is connected to the oil flow path (3) is connected to the lubricating oil supply source (C), for example, the oil tank (T1) containing the standard oil, and upstream of the first housing (G) of the plurality of housings (G) An oil filter F having a pore diameter of about 100 μm coupled with the blocking device is installed. In addition, one other oil flow path 4 connected to all the pump elements E of the respective housings G is provided with each of the first oil flow paths 3 ', 3 ″ and 3' ″ of the housing G. It is comprised so that it may separate | separate from each other, and the interruption | blocking apparatus D for interrupting each said other oil flow path 4 is provided in each said housing G, respectively.

Each housing G is further equipped with an additional connection A which is connected to the pump element E of the housing G by a second oil passage 5. The connection part (A) can be connected to a special lubricating oil such as a test run oil or an oil tank (T2) in which the standard oil is accommodated. The connection part (A) is also connected to or received inside the additional blocking device (U). May be installed. As shown by the broken line in the figure, the consumption measuring device 7 may be installed at the connection portion A of the flow path 6 (in some cases, in the housing G), and the oil tank T2 is passed through the common oil flow. It can also be installed in the distribution path 8 connected to the furnace 3. Here, the oil tank (T2) may be connected to each housing (G) or a plurality of housings (G) can be connected at the same time, of course. When all the pump heads of the lubricating oil pump P are supplied with the lubricating oil contained in the oil tank T2, the oil filter F installed on the common oil flow path 3 on the oil tank T1 side. It is convenient for the starting oil to be supplied to the common oil flow path 3 through the oil flow path 8 on the other hand, by the side of the drive source B or the side of the filtration device F). You can also turn it back on.

In addition, any one of the plurality of housings G is provided with a filter-type dreg measuring and adjusting device H. In addition, the lubricating oil pump (P) is preferably provided with an overpressure control device (J) connected to the overpressure path (9) passing through all the housing (G) to be used together in the entire housing (G). Here, in the case where the overpressure path 9 is arranged inside one of the housings G, it is better to provide an impact valve 13 for setting the pressure in advance in the overpressure path 9.

As schematically shown in FIG. 2, each pump element can individually adjust each flow rate as indicated by the inclined arrow, and the optical flow rate control device N is a visible plate. ) And float 11 are arranged in each outlet path 23 leading to the lubrication connection 12. In addition, for example, the electrical flow control device 0, which is a switch which is easily sensitive to the movement of the float 11, is installed in at least one of the optical flow control devices N. The electrical flow control device 0 is It is intended to be connected to the signaling device pecking alarm device by a thin sheathed cable passing through all housings (G). Each outlet path 23 is protected by a check valve R which is closed in a direction countercurrent to the pump element E. In addition, each outlet path 23 is a through pressure duct (9 ') passing through all the housing (G) forming the overpressure path (9) to which the electrical overpressure control device (J) is connected via a mechanical rupture element (L). Will be connected.

Although the block diagrams of Figs. 1 and 2 are different from each other in detail, this is only for schematically illustrating the structure and equipment of each pump module in the drawings. Details are shown.

3 and 4 show partial cross-sectional and partial cross-sectional views of a lubricating oil pump P with three pump modules 7 for a six-cylinder engine cylinder, for example combined frequencies as shown in these figures. The drive part B of the asynchronous motor BM with a transducer (not shown) is installed to be flanged together with the power transmission device BG on the side of the first housing G of the three housings G. Thus, the eccentric shaft portions 1 ', 1 ", 1'" coupled to each other by the coupling K are driven. The temporary pump element E is inserted into a receiving portion 19 formed in the housing G in the form of a block, and these pump elements E protrude from the side of the housing G so as to operate the handle 21 from the outside. It is configured to operate the flow control device (V) with). On the other hand, on the upper surface of the housing G, the drive member 22 for the shutoff device D into which the residue measuring device H for measuring the height of the lubricating oil surface and the filter clogging state is inserted into the oil flow passage 4. Will be installed next.

Each of the pump elements E is disposed adjacent to the axial direction, that is, each pump module is arranged on the upper surface of the housing (G), two on the front of the housing (G). Therefore, each pump head is provided with four lubrication connecting portions 12 held on the upper surface as well. When not in use, if the connection part A is blocked by the oil discharge screw 26, for example, the inner chamber of the housing G in which the pump element E and the knitting shaft parts 1 ', 1 ", 1'" are located. The oil flow passage 5 is connected to be blocked.

In the third housing G, only two pump elements I are installed, while the unused two receiving portions 19 are covered with a cover 24. As shown in the front sectional view of the second housing G shown in FIG. 3, the lubrication connecting portion 12 is inserted into the outlet path 23 leading to the oil flow path, and the bursting element L is inserted into the outlet path 23. ) Is inserted so that the bursting element (L) is ruptured and broken so that it is connected to the overpressure path (9) to transmit an overpressure signal to the overpressure control device (J).

In addition, as shown in FIG. 3, the housing G is provided on the front surface of the housing G in which the exit paths 23 are disposed, for example, a surface separated from the actuating element 22 therein. The visual plate 10 constituting the optical flow rate control device N arranged at the side is coupled, and following the optical flow rate control device N, any one of the visual tube 10 or, if necessary, to each visible tube 10. By installing the electric flow rate controller 0, the optical flow rate controller N and the electric flow rate controller 0 are integrated. The electrical flow control device 0 is firmly attached to the cable path 31 of the housing G, so that the cable duct of the neighboring housing G when the housing G is coupled to each other, preferably a cable It is connected to the cable duct that can be coupled by the connector (32). This cable duct may be connected to a warning device or a signal device (not shown) of the lubricating oil pump (P). In addition, an outlet opening 30 for the eccentric shaft portions 1 ', 1 ″, 1 ′ ″ is formed in the housing G. The outlet opening 30 of the last housing G in the row of housings is formed in the housing G. The cover 27 may be covered as shown in FIG. However, it is also possible to equip this part with a speed measuring device (X).

FIG. 4 shows how the lubricating connection 12 of the housing G is arranged side by side on the side of the housing G where the actuating element 22 for the shut-off device D is located. In this case, the oil passage 3 ', which forms the continuous common oil passage 3 with the oil passage 3' of the second housing and the oil passage of the third housing (not shown), is the last housing of the row of housings. In (G), it is connected to the oil supply source (C). In addition, a centering bolt 27 is provided between the second and third housings in FIG. 4 so that the positions of the housings G are the same. In addition, each housing G has a heating duct, as shown in the third housing G of FIG. 4, which can be connected to a heating duct, for example, a heating duct for steam heating, or into which a heating element such as a heating rod can be inserted. 27, these heating ducts 29 are preferably mutually coupled to heat all the housings. Alternatively, the heating element may be inserted only in each housing G or the selected housing G so that at least one heating element can be individually heated. On the other hand, if necessary, as shown in FIG. 4, an optical level control means made of an inspection mirror 28 may be further provided.

5 is a view showing in detail the connection part of the pump module, in which the second housing G of the row of housings is fitted into the threaded hole 14 of the first housing G, and the screw head 16 is screwed into the screw hole of the second housing G. It is connected to the first housing G by the screw 15, which is caught and supported by the stepped portion formed therein. Similarly, the third housing G is supported by the screw head 16 of the set screw 15 at the stepped portion of the screw hole, but is screwed into the enlarged screw hole 17 of the second housing G. The coupling screw 15 is coupled to the second housing G by the coupling screw 15 coupled to the female screw portion of the bushing 18 formed inside and outside the screw head 16 of the front screw 15. . In this way, the rear housings can be securely coupled to the front housings, respectively. In this case, the required number of housings 7 can be secured by using a screw 15 having a length approximately equal to the length of each housing. You can arrange them one by one.

On the other hand, despite being an externally adjustable component, each pump module (M) is made compact so that the pressure does not leak, the lubricating oil pump (P) can be designed very compact as a whole. A compact block-shaped housing G and a coupling part 2 having excellent load capacity are provided, and the sides of the mutually coupled housings G are flatly coupled so that the lubricating oil pump P has sufficient intrinsic rigidity ( It has a domestic vibration resistance, which has a particularly important vibration resistance when starting and stopping without the need for an expensive substrate or reinforcing member. In addition, although the housing G described above has been described as having four support parts for four pump elements as an example, the other pair of pump elements I are added to the same eccentric shaft portion from the other side of the housing G. It can also be combined. In addition, three adjacent pump elements (I) may be installed on the side of each housing (G), the housing (G) may be made smaller and more compact, and only one or two pump elements (E) may be installed. have. In addition, due to its high rigidity and compact design, the lubricating oil pump P may be directly installed on the mounting table or the engine to be lubricated, and the housing G may be integrally gathered as shown in FIG. It may be installed via the mounting plate 33.

As described above, according to the present invention, the compact shape is simple and can be manufactured at low cost, and the standard oil and the test run oil can be exchanged at high speed without any technical difficulty. By maintaining the rigidity, it is possible to obtain a lubricating oil pump of an engine or a compressor having a high operating reliability.

Claims (17)

A plurality of housings G arranged in a row in a row so as to communicate with each other with a plurality of pump elements E, and installed in these housings G and connected to a drive source B, Eccentric shaft portions 1 ', 1 ", 1'", which are to cooperate with each other, and an outlet path 23 which connects said pump elements E to the lubricating oil outlet 12, so that said housing G is said eccentric. In the lubricating oil pump (P) for an engine or a compressor having a multi-cylinder in which a two-stroke diesel engine is formed which is connected in series communication along the axis of the shaft portions (1 ', 1 ", 1'"), each housing ( In the inside of G), the first oil flow passages 3 ', 3 ", 3'" made up of the distribution hole inside the housing, and the first oil flow passages 3 ', 3 ", 3'" and the said Another oil supply line 4 consisting of a distribution hole in the housing to connect each pump element E, the first of the housing G A second oil flow passage 5 consisting of a distribution hole in the housing connecting the two oil tank connectors A and the pump elements E, and the pump element E is connected to the second oil flow passage 5; And a shut-off device (D) for disconnecting the pump elements (I) from the first oil passages (3 ', 3 ", 3'") to be selectively separated while being connected to the engine. Or lubricant pumps for compressors. The first oil supply line (3 ', 3 ", 3" ") is separated from each pump element (E) by said shut-off device (D), and the Lubricating oil pump for an engine or a compressor, characterized in that the second oil supply tank connection portion (A) is connected to the second oil supply tank (72). The lubricating oil pump for an engine or compressor according to claim 1, wherein an oil consumption measuring device (7) is installed at the connection portion (A) of the housing (G). According to claim 1, The connecting portion (A) connected to the second oil tank (T2) of the housing (G) is characterized in that the receiving hole is further provided with another blocking device (U) that can be selectively operated Lubricant pumps for engines or compressors. The oil tank of claim 1, wherein the first oil passages 3 ′, 3 ″, 3 ′ ″ of all the housings G are interconnected, respectively, and penetrate the first oil tanks through all the heat-generating housings G. 3. Lubricating oil pump for an engine or a compressor, characterized in that to form a first line of lubricating oil supply line (3) leading to (T1). The block (4) according to claim 1, wherein the housing (G) is a quadrilateral block for supporting the eccentric shaft portions (1 ', 1 ", 1'"), respectively, wherein at least two pump elements (E) are installed therein. For the engine or the compressor, characterized in that the receiving portions 19 are arranged to be parallel to the axial direction of the eccentric shaft portions 1 ', 1 ", 1'", respectively or in a 90 ° or 180 ° direction with respect to the axis. Lube oil pump. The method according to claim 6, wherein each of the pair of pump elements (E) is to be accommodated and installed in the receiving portion (19) respectively formed in the outer wall of the two adjacent housings (G) adjacent to each other. Lubricating oil pump for an engine or a compressor. The lubricating oil pump for an engine or compressor according to claim 1, wherein each of said pump elements (E) is provided with a flow rate adjusting device (V). 2. An engine or compressor according to claim 1, characterized in that an optical flow rate adjusting device (N) is installed in each of said outlet paths (23) and said visual tube (10), and is provided with a plotter (11) for visual observation. Lube oil pump. An overpressure path (9 ') having a distribution hole is formed in each of the housing (G), and the outlet path (23) is provided with a rupture element (L) in the overpressure path (9'). An electrical overpressure control device (J) is connected to the wave pressure path (9 ') while being connected by a medium. The plurality of housing screws (15) according to claim 1, wherein the plurality of housings (G) arranged in a row are connected to each other so that adjacent connecting portions (2) are connected to each other by the coupling screws (15). And a male screw portion formed at the front end, and screwed to the female screw portion 14 formed inside the threaded bushing 18 fixed to the female screw portion 17 formed thick in each housing G. Lubricating oil pump for an engine or a compressor, characterized in that configured. The engine housing according to claim 1, wherein one or more heating ducts 29 are formed in the housing G, each of which has a through hole through which a fruit or a heating member passes through the inside of the housing G. G) One or more heating ducts 29 or a compressor lubricating oil pump, each of which consists of a through-hole of a housing or a heating member. The engine or compressor according to claim 1, wherein the drive unit B includes a three-phase electric motor, a DC motor, a hydraulic motor, which operates in response to a load with a frequency converter BM and a reduction gear BG. Lubricating oil pump. The lubricating oil pump for an engine or a compressor according to claim 1, wherein said other oil flow passage is provided in a through hole in a housing forming a child. Each of the pump elements E is installed in a receiving portion 19 consisting of a socket opened outwardly of the housing G so that these pump elements E can be inserted, while the other oil distribution to this receiving portion 19. Lubricating oil pump for an engine or a compressor, characterized in that the furnace (4) and the second oil flow path (5) is formed to cross. 2. The outlet passage (23) according to claim 1, characterized in that the outlet path (23) consists of a distribution hole in the housing (G) from the respective pump elements (E) to the lubrication connecting portion (12) located at the face of the housing (G). Lube oil pumps for engines or compressors. 10. The switch according to claim 9, wherein the plotter (11) of the optical flow control device (N) cooperates with the outlet flow path (23) of the charging unit (23) and the lubrication connection portion (12). Lubricating oil pump for an engine or a compressor, characterized in that to achieve.

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