CN1199835A - Lubricating oil pump for engines or compressors - Google Patents

Abstract

A lubricating oil pump which is used for a multi-cylinder engine or compressor, especially for two-cycle diesel engine comprises at least one housing which is at least provided with one piston pump element, a lubricating oil pump shaft for the piston pump element and at least one output pipe. Other analogous housings can be connected with the housing according to the series arrangement, each housing comprises a fluid duct and a device which is used to selectively connect the pump element of the housing with a supply source which is shared by one or more housings, or with a single supply source, wherein the housings are connected in line and are composed of the pump elements, and the single supply source is only communicated with the pump element of the housing.

Description

The lubricating pump that is used for motor or compressor

The present invention relates to lubricating pump according to the preamble of claim 1.

According to the number of registration of Joseph V gele AG company is the cylinder that the lubricating pump of the file " T type lubricating pump " of DKS 1-900-00 (09.02) is used for lubricated medium-sized or large-sized diesel motor and compressor.Pump element is contained in the shell and distributes along a transmission shaft in the mode of parallel to an axis.Fuel sucking pipe leads to each pump element.One or two catheter pressures pass to pressure export on the outer housing cover from pump element.Lubricant oil infeeds shell by a pipe-line system having under the condition of pressing or not having pressure.As a rule, a plurality of shells are side by side arranged in the mode that becomes a row and are furnished with one and unite drive unit.Each shell has one and passes through the input hole that a pipeline is connected with supply source.It is sizable generally that pipeline spends in.Lubricating pump is complicated and expensive.The cylinder of lubricated motor lost efficacy or the situation of repairing under, cylinder must be provided with special running-in oil in running-in period.Other cylinder still is provided with standard oil during this period.In lubricating pump, change to gain to standard oil from standard oil and need spend the replacing that long time carries out pipe-line system pretty troublesomely to running-in oil or from running-in oil.In addition, because known lubricant oil pump structure and driving principle also is restricted performance, therefore be difficult to satisfy the modern medium-sized lubricating requirement that is proposed with big-block engine.

Be made up of a plurality of shell and associating drive units that contain pump element from a kind of lubricant pump that CH-A-243901 knows, shell is connected to each other by the clamping screw of longitudinal extension.

A kind of in lubricant oil and fuel system that the diesel engine that selectively drives with light-duty heavy oil uses what from GB-A-738451, know, for every type oil has been equipped with independent pump, and is provided with one integratedly and has the complex pipeline system of selectable possibility of transformation.

In a kind of lubrication system of from FR-A-676243, knowing, in lubricating loop, be provided with the cleaning and the filtrating equipment that are used for lubricant oil integratedly, and these devices can be separated selectively by means of multi-way valve.

In a kind of lubricating fitting of from GB-A-464926, knowing, provide a plurality of fuel tanks to dissimilar oiling agents, these oiling agents can be pumped to lubricating point selectively.One adjustable control valve unit is set up essential fluid respectively and is connected and cut off unwanted fluid and be connected.Lubricating point sequentially moves.

Purpose of the present invention is for providing a kind of lubricating pump of the above-mentioned type, and it is a compact structure, simple and cheap at manufacture view, and allows to carry out operational transformation (standard oil-running-in oil) with immediate mode, and does not have any sizable technology effort.

Above-mentioned purpose can realize with the feature of claim 1 according to the present invention.

Because to the shell associating fuel feeding of all lubricating pumps, therefore the fuel feeding for each pump element does not need the complicated pipelines system.Only shell need be connected to each other, so that all pump elements are accepted lubricant oil from the joint supply source.If a shell of lubricating pump need for example change over the oil of running-in oil or other type, then this change can at any time be carried out with immediate mode, needn't change or the installation pipeline system.When through the pump element of the shell that change after change when independent supply source is connected, the pump element of the unaltered shell of all other will be still by joint supply source fuel feeding.Because being the mode by the oil distributor piece, each shell forms, therefore can obtain compactness and the inevitable rigid construction of lubricating pump substantially, and might realize such driving principle, promptly produce the effective lubricating oil pump that can satisfy maximum lubricating requirement with powerful pump element.

According to the present invention, might be for example the standard oil supply source of a shell that will be replaced by running-in oil with associating be separated, and individually to the dissimilar oil of its supply, running-in oil for example, and any infringement can not arranged to the regular supply of other shell.Do not need to change pipe-line system, but must the operation cut-off device.Can for good and all or just other connection set be connected with the running-in oil source.The receiving portion that opens wide outwardly on the shell allows easily to install each pump element.Because the receiving portion mentioned intersects with fluid conduit systems in shell, therefore in alter operation without any need for connection work.

Running-in oil supply and/or consumption measuring apparatus can advantageously be connected on other joint of shell.In this case, have only the pump element of this shell be supplied with the different oil of oil type of other shell of lubricating pump, can measure the oil consumption of the pump element of this shell simultaneously, and can not damage the lubricating function in other shell.For example, can easily determine the consumption of running-in oil in this way.Obviously, standard oil also can be by described other joint supply, with the consumption by this metering oil.Can in each shell, carry out this operation individually.

Another kind of scheme is that other joint also can be designed to the receiving opening of other cut-off device.For example, the running-in oil supply source for good and all is connected on this joint.Under situation about will change, if two cut-off devices of operation, and need not carry out any change in the inside of shell.

When making shell, if the conduit of shell is done pore-forming, but with regard to the simplification on the implementation structure.The boring ratio pipe is more suitable in high pressure, and can admit at least and be used to cut-off device that shell and joint supply source are separated, has saved structure space thus.

Advantageously, pump element is directly driven by the eccentric shaft part that is bearing in the shell.At manufacture view, piece shape structure is favourable.Receiving portion, housing catheter and be used for the hole of eccentric shaft part, and the pressure control conduit can be manufactured in modern manufactory in batches.Pump element can be only from a shell side or from several shells side is packed shell into, so that as much as possible as lubrication connection.Can make each shell have very a compactness and a stable structure shape like this, also form the element of construction of the especially anti-vibration of a compactness even comprise the lubricating pump of a plurality of shells thus.

Shell preferably comprises four pump elements with the form of a compact package, and each pump element all is used as a lubrication connection.All lubrication connections and the executive component that is used for cut-off device all are arranged in same shell side, and this is favourable to technical finesse.

According to the present invention, can regulate the flow velocity of each lubrication connection individually, that is can regulate like a cork and can not produce and interfere in the inside of shell.

This structure allows to monitor reliably lubricating function.All assemblies all are contained in integratedly in the shell or by a kind of clog-free mode and are arranged on the shell.Because dual test at least in part, operational reliability is very high.

With regard to the inefficacy when the superpressure, can in all shells of heart monitoring lubricating pump.By means of rupture elements, can reach monitoring function in a kind of mode simple in structure, and under the situation that pump element lost efficacy, other pump element still bring into operation (important emergency function).

Impurity in the standard oil was carried before standard oil enters lubricating pump to be stayed at least one filter.

In addition, be provided with the auxiliary monitoring device that is used to strengthen operational reliability.

When lubricating pump is made up of a plurality of building blocks, the easy installation that in assembly process, might accomplish to save the space.

Each shell can form an independent structures unit as the building block of a pump, and the lubricating pump that size is different with performance can be pressed modular construction production by means of this unit, has saved expensive fuel feeding or Oil Guide pipeline simultaneously.

In order to satisfy specific (special) requirements, each shell is provided with at least one heating duct section therein, promptly selectively heats all shells or only heats a shell by connecting a steam heated element or a heating element is set, allowing.The heating duct section preferably forms in such a way, promptly after each opening that exposes the heating duct section on the casing wall, has set up the fluid connection by connecting adjacent shell.

In addition, lubricating pump can be equipped with a velocity measuring device in an operation of assembling easily, and it preferably is contained on last shell that leaves drive unit.

Also have, owing to can change the speed or the torque of three-phase gear motor by a frequency variator in control side, so can realize the lubricating point supply relevant with load.Under the situation that frequency variator lost efficacy, three phase motor can further move (important emergency function) with rated velocity according to normal power supply frequency.

But, also can adopt other suitable drive mechanism associating driving group to be combined in all pump building blocks in the lubricating pump.

Best, each shell has included a preassembled electrical equipment, and it for example has a core of a cable that is arranged in the cable duct tube of shell.Core of a cable can preferably pass all interconnected shells by the cable joining that matches and extend when connecting shell.The source current of electric or electronic component or/and the signal or the data that produce for monitoring or control purpose can in core of a cable, transmit.

With reference now to description of drawings theme of the present invention, embodiment.Among the figure:

Fig. 1 is a sketch, shows the cylinder lubricating system with the lubricating pump that is used for cylinder;

Fig. 2 is the sketch with detail section of pump building block;

Fig. 3 has to be used for the local longitudinal sectional view of the lubricating pump of the pump building block of six engine cylinders (as Fig. 1) altogether;

Fig. 4 is the local horizontal sectional view of the lubricating pump of Fig. 3; And

Fig. 5 shows the sectional view of the details relevant with the connection of pump building block.

Be used for lubricated medium-sized or large-sized diesel motor or compressor, for example the cylinder lubricating system S of six of two stroke marine diesel engine cylinder Z1 to Z6 comprises that one as primary clustering includes the cylinder lubricating pump P of three pump building block M, many order oil distributor W, the W ' corresponding with number of cylinders and fuel tank T1, T2 (standard oil and running-in oil).Each pump building block M is contained among the box-shaped enclosure G, and this shell arranges four to be used for the pump element E on the upper and lower lubricated plane of cylinder Z1 to Z6 by order oil distributor W therein, and the delivery valve of the order oil distributor W ' by the downstream.

Belong to the eccentric shaft part 1 of the driving axis 1 that passes to an associating drive unit B ', be bearing in each shell 1 ", 1 ' ".Eccentric shaft part 1 ', directly drive each pump element and be connected to each other by coupling K for 1 ", 1 ' ".Shell G is connected to each other with mode and the joint part 2 that becomes a row.In each shell G, be provided with one section runner 3 as a continuous associating fuel supply duct 3 ', 3 ", 3 ' ", this conduit 3 is by connecting shell G and become continuous and being connected with a joint supply source C (the fuel tank T1 that for example is used for standard oil).With the first shell G or section 3 " ' the cut-off device associating of upstream, be provided with a fine filter F (suitable hole dimension is about 100 μ m).Fluid conduit systems 4 each section 3 from shell G that all pump element E in the shell all are attached thereto " is divided out branch.The one cut-off device D that is used for fluid conduit systems 4 is housed in shell G.

In addition, each shell has another joint A, and it links to each other with the pump element E of shell G by a fluid conduit systems 5.Fuel tank T2 (oil that is used for running-in oil or other type, or also be used for standard oil) can be connected with joint A, and near joint or among the joint A another cut-off device U can be set.As what be shown in broken lines, can be provided with one at joint A place (can randomly in shell G) on the fluid conduit systems 6 and consume measuring apparatus 7, perhaps another makes the fluid conduit systems 8 that fuel tank T2 links to each other with associating oil supply line 3 (also can randomly in shell G).Fuel tank T2 can randomly link to each other with each shell G.But, a plurality of shell G are linked to each other with fuel tank T2.All use under the situation of the oil product supply among the fuel tank T2 at the pump building block of all lubricating pump P, be preferably in fine filter F place and close cut-off device, and running-in oil is introduced feed line 3 by pipeline 8.Also can introduce running-in oil from the side of drive unit B or from the side of fine filter F.

A pasta and/or filter Control of Impurities device H are set at least one shell.In addition, for all shell G, lubricating pump P can preferably jointly comprise a superpressure control gear J, and it links to each other with a superpressure pipeline 9 that passes all shells.In at least one shell G, can a preload damped valve 13 be set for superpressure pipeline 9.

As Fig. 2 schematically shown in, pump element is (the illustrating with oblique arrow) that can adjust separately with regard to its flow velocity, and lead at each and to settle an optical-flow control gear N on the export pipeline 23 of a lubrication connection 12, it is preferably with an observation tube 10 and a buoy 11.At at least one optical-flow control gear N place one magnitude of current control gear O is set, for example an electricity is near switch, and its responds moving of buoy 11.The core of a cable (shielded Thin cable) that magnitude of current control gear O preferably passes through all shell G links to each other with a telltale or warning device.In addition, each outlet line 23 is protected by a safety check R, and this valve is along cutting out towards the backflow direction of pump element E.In addition, the rupture elements L that each outlet line 23 all passes through a machinery and a superpressure conduit 9 ' link to each other, this conduit 9 ' pass shell G, and the superpressure runner 9 of all shells ' formation superpressure pipeline 9 are connected with electric superpressure control gear J on pipeline 9.

The sketch of Fig. 1 and 2 differs from one another in detail, and this is that promptly each in them only schematically shows the structure and the equipment of each pump building block owing to such fact.Fig. 3 and 4 some details of explanation.

Shown in Fig. 3 and 4 (a partial vertical section and a local horizontal section that the lubricating pump P of three pump building block M is arranged), drive unit B, the asynchronous motor BM that for example has a frequency variator (not shown) that links with it, be connected in through a transmission case GB with flange on the side of first shell of three shell G, and drive the eccentric shaft part 1,1 that links to each other with coupling K each other ', 1 ", 1 ' ".Pump element E is inserted in the receiving portion 19 that forms among the box-shaped enclosure G in such a way, thus they shell side towards outside outstanding, and allow from the outside for example by means of an operating grip 21 operations flows quantity regulating device V.Pasta and/or filter dirt measuring device H also are contained in shell side on this, and be adjacent with the executive component that is used for cut-off device D 22 that inserts in the housing catheter 4.Pump element E arranges in couples vertically, and is adjacent one another are, that is to say that two two make each pump building block comprise four lubrication connections 12 in the front casing side thus in last shell side, and they preferably similarly are contained in shell side.Under obsolete situation, can for example stop by corresponding other joint A of an oil extraction screw 26 sealing at housing catheter 5 places, this conduit 5 and wherein be equipped with pump element E and eccentric shaft part 1 ', the inside and outside shell chamber of 1 ", 1 ' " links to each other.

In the 3rd shell G, only be provided with two pump element E, and other two untapped receiving portion 19 usefulness one lids 24 cover.Selected section as can be seen from second shell of Fig. 3, outlet line 23 guides on the socket of lubrication connection 12 with the form of housing catheter, and rupture elements L is arranged in that outlet line 23 (in socket) is gone up and links to each other with superpressure conduit 9, the superpressure signal passed to superpressure control gear J under the failure condition that causes rupture elements L to break.

In addition, in each shell G, be provided with an observation tube 10 (the 3rd shell G place in Fig. 3 illustrates) integratedly, with as optical-flow control gear N, it is at the shell side face, towards the direction of leaving executive component 22, for example in the front casing side, each outlet line 23 has; Simultaneously, adjacent with above-mentioned optical-flow control gear N, be provided with magnitude of current control gear O, it can only be located at an observation tube place, perhaps if necessary, can be located at each observation tube place.Magnitude of current control gear O preferably links to each other with an elastic cable paper, and this elastic cable paper is contained in the cable duct tube 31 of shell G regularly and can be linked to each other with elastic cable paper among the adjacent shells G by cable joining 32 when being preferably in each shell and being connected to each other.Elastic cable paper can cause one of lubricating pump P and report to the police or the telltale (not shown).In addition, be used for eccentric axis 1 ', the outlet 30 of 1 ", 1 ' " forms at shell G.The outlet 30 of last of one exclusive shell G can be sealed by a lid 27 (Fig. 4).But, a velocity measuring device X can be installed in this part.

How the lubrication connection 12 that Fig. 4 shows shell G is arranged side by side at the shell side face, also is placed with the executive component 22 that is used for cut-off device D at the shell side face.Under the situation of the first shell G, with the housing catheter section 3 of second shell, " form the housing catheter section 3 of continuous feed conduit line 34 ' can in last shell of a row, link to each other with joint supply source C with the housing catheter section (not shown) in the 3rd shell.In Fig. 4, between the second and the 3rd shell G, be provided with locating stud 25, it makes shell centering each other.Each shell G comprises (as the second shell place schematically illustrates among Fig. 4) housing catheter 29, and they are heating duct sections, and can link to each other with heating pipeline (for example being used for steam heating), perhaps can insert a heating element as the heating stick.The heating duct section 29 of the shell G of lubricating pump can be connected to each other, so that middle heart heats all shells.Another kind of scheme is at least one heating element can be inserted among each shell G, or only insert one through among the shell G that selects, so that carry out independent heating operation.One optics pasta controller (the sight hole glass 28 among Fig. 4) also can be set in addition.

In Fig. 5, the second shell G among the row links to each other with the first shell G by means of clamping screw 15, and this screws also is bearing on the shoulder in hole of second shell with its head 16 in the threaded hole 14 of first shell separately.The 3rd shell is also linked to each other with second shell by clamping screw 15, this screw also separately with its head rest supporting on the shoulder in hole, but be screwed in tapped section of a threaded sleeve 18.This sleeve is screwed in the internal thread segment 17 of an increasing of the second shell G in head 16 back of front clamp screw 15.Thus, be arranged in order the shell of any institute requested number, rear casing separately then adopts the clamping screw 15 of same length to be fixed on the front casing with might becoming a row, and the length of above-mentioned screw is roughly corresponding to the length of shell.

Although can be from the outside approaching element is arranged, each pump building block M has a pressure-tight and compact structure, so that the integral body of lubricating pump P becomes very compact.Because compact box-shaped enclosure and attachment portion 2 with big bearing capacity, and because the plane bearing of the shell side of interconnected shell, lubricating pump P has big natural rigidity, thereby it is without any need for the bottom girder or the supporting element of costliness, and still anti-vibration, this is a particular importance to starting and the ending phase that drives.Each shell G assigns to be described with four receiving portions that are used for four pump elements by way of example.But also can be connect another to pump element E to same eccentric shaft part from another shell side.In addition, three adjacent pump element E might be set in each shell side, or also can make shell that one or two corresponding pump element only is housed and be shell G smaller, in addition compacter.Because intrinsic rigidity and compact structure, lubricating pump P can be directly or as shown in Figure 4, to be fixed on the pump carrier or on the lubricated motor, in order mating with board, to be provided with fastening point on each shell G with board 33.

Claims (19)

1. one kind is used for multicylinder engine or compressor, the lubricating pump of two-stroke diesel engine (P) particularly, it comprises that at least one is furnished with the shell of at least one piston pump member (E) (G) therein, a lubricated pump shaft (1 that is used for said pump element (E), 1 ', 1 "; 1 ' ") and at least one export pipeline (23) that passes at least one lubrication connection (12), other similar shell (G) can link to each other with above-mentioned shell (G) by arranged in series, it is characterized by, each above-mentioned shell (G) comprise fluid conduit systems (3 ', 3 "; 3 ' ", 5,4) and be used for selectively the pump element (E) of above-mentioned shell (G) or be connected to one by the total supply source (T1 of a plurality of shells, C) or be connected to the device of an independent supply source (T2), a described a plurality of shells proportionately row mode connect and also all contain pump element each other, and described supply source (T2) leads to the pump element (E) of above-mentioned shell (G).

2. lubricating pump as claimed in claim 1, it is characterized by, in above-mentioned shell (G), be provided with one as one section of fuel supply duct (3 ', 3 ", 3 ' ") fluid conduit systems, the section of it and other similar shell (G) (3 ', 3 ", 3 ' ") form a continuous associating oil supply line (3) together, described similar shell and above-mentioned shell proportionately a row mode link to each other; Each said pump element (E) inserts in the outwardly open receiving portion (19) of above-mentioned shell (G) from the outside, and links to each other with above-mentioned section (3 ', 3 ", 3 ' "); Between said pump element (E) and above-mentioned section, be provided with the cut-off device (D) of operation selectively; And each above-mentioned shell (G) comprise one structurally with above-mentioned section (3 ', 3 ", 3 ' ") joint that separate, that be preferably used in independent supply source (T2) (A).

3. lubricating pump as claimed in claim 2 is characterized by, and the consumption measuring apparatus (7 ') of importing oily supply source (T2) and/or being used for the pump element (E) of above-mentioned shell (G) can be connected with the joint (A) of above-mentioned shell (G).

4. lubricating pump as claimed in claim 2 is characterized by, and described joint (A) forms as a receiving opening, and it is used for one of above-mentioned independent supply source (T2) other the cut-off device that can activate selectively (D).

5. lubricating pump as claimed in claim 2, it is characterized by, above-mentioned section (3 ', 3 ", 3 ' "), from above-mentioned section with from above-mentioned other joint (A) to the fluid coupled (4 of above-mentioned receiving portion (19), 5) export pipeline (23) in the outside all forms inner shell conduit, preferably shell aperture, and from the said pump element to shell; And above-mentioned cut-off device (D) is accommodated in one of above-mentioned housing catheter.

6. lubricating pump as claimed in claim 2 is characterized by, and above-mentioned shell (G) is a square box and contains an eccentric shaft part (1 ', 1 ", 1 ' "); At least each two receiving portion (19) that are used for a corresponding pump element (E) is arranged and/or vertically abreast around 90 ° of axis bias or 180 °, and above-mentioned receiving portion roughly along the axis of above-mentioned eccentric shaft part radially.

7. lubricating pump as claimed in claim 2, it is characterized by, on above-mentioned two shell sides, above-mentioned shell (G) comprises a pair of adjacent receiving portion (19) separately, and export pipeline separately (23) passes to a lubrication connection (12) that is arranged on the shell side from this part; And all lubrication connections (12) all are arranged in the shell side, at this place, also are provided with an executive component (22) that is used for above-mentioned cut-off device (D).

8. lubricating pump as claimed in claim 1 is characterized by, and each said pump element (E) comprises first-class velocity modulation regulating device (V), and it can be freely approaching a shell side when said pump element (E) is inserted into above-mentioned receiving portion (19).

9. lubricating pump as claimed in claim 1, it is characterized by,, be preferably in the shell side of leaving above-mentioned lubrication connection (12) at the shell side face, each lubrication connection (12) all is furnished with an optical-flow control gear (N), and it for example has a buoy (11) in an observation tube (10); And near above-mentioned optical-flow control gear (N), be provided with a magnitude of current control gear (O), it for example be furnished with one aim at buoy near switch, to be used at least one lubrication connection (12) of above-mentioned shell (G).

10. lubricating pump as claimed in claim 1 is characterized by, and above-mentioned shell (G) contains a continuous superpressure conduit (9 '), and it forms a superpressure pipeline (9) with the superpressure conduit (9) of above-mentioned other shell (G); And each export pipeline (23) is connected with above-mentioned superpressure conduit (9 ') by a rupture elements (L); One electric superpressure control gear (J) links to each other with above-mentioned superpressure pipeline (9).

11. lubricating pump as claimed in claim 2 is characterized by, and in oil supply line (3), in the front that along the feeding direction is first shell (G), a meticulous fuel feeding filter (F) is set, it preferably has the hole dimension about 100 μ m.

12. lubricating pump as claimed in claim 1 is characterized by, at least one shell (G) comprises a preferred electric supervisory device (H, 28), to be used to monitor the degree of pasta and/or filter pollution.

13. lubricating pump as claimed in claim 1 is characterized by, (BG) first shell (G) on links to each other other shell (G) for B, BM with being connected to a drive unit respectively by means of interior clamping screw (15); Each clamping screw (15) roughly forms and is screwed in the internal thread segment (14,18) by outer cover length; And above-mentioned internal thread segment is located between two adjacent shells (G), and in a wresting-in type sleeve (18), and this sleeve is screwed in the internal thread segment (17) of increasing of shell of head (16) back of clamping screw (18) of front.

14. lubricating pump as claimed in claim 1, it is characterized by, each shell (G) forms a pump building block (M) by means of two pairs of pump elements (E), to be used for the cylinder (Z1 to Z6) of lubricated motor, corresponding pump element (E) preferably is connected to order oil distributor on the above-mentioned export pipeline (23) by one, and (W W1) supplies with lubricant oil the outlet valve of lubricated plane and engine cylinder; And, by the total drive unit (B) of all pump building blocks (M) with link to each other and link to each other by first of the interconnected pump building block of arranged in series with the oily supply source of associating.

15. lubricating pump as claimed in claim 1, it is characterized by, above-mentioned shell (G) comprises at least one heating duct section (29), and it is preferably used in introduces a heat medium or a heating element, and it can be connected on the heating duct section (29) of adjacent shells (G) by casing wall selectively.

16. lubricating pump as claimed in claim 1 is characterized by, above-mentioned shell (G) comprises that one is used for the outlet opening (30) of an eccentric shaft part (1 ', 1 ", 1 ' "); And, in the zone of above-mentioned outlet opening (30), be provided with the fastener that is used for a lid (27) or a velocity measuring device (X).

17. lubricating pump as claimed in claim 14 is characterized by, above-mentioned drive unit (B) comprises that one has the three-phase gear motor of frequency variator (BM, BG), above-mentioned three-phase gear motor preferably can be in response to load operation.

18. lubricating pump as claimed in claim 14 is characterized by, above-mentioned drive unit (B) but comprise motor, a direct current motor or an oil hydraulic motor of a change poles.

19. lubricating pump as claimed in claim 1 is characterized by, above-mentioned shell comprises a continuous cable conduit (31), and it can link to each other with the cable duct tube (31) of above-mentioned other shell (G), and comprises a core of a cable that has a cable joining (32) at least.

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