KR101350551B1 - Pump module having lubrication and cooling water flow channel molded inside - Google Patents

Abstract

The present invention relates to a pump module in which a lubricating oil and a coolant flow path are formed therein, and an object thereof is to replace a pipe related to a lubricant (LO) for smooth engine operation with an internal casting shape without external protrusion, so that a pipe or The connection and support are not present and the lubricating oil pump (LO pump) is installed inside, and at the same time, the internal flow path is composed of piping of the LT Cooling water and the HT Cooling water. To provide a pump module that is very convenient.

The configuration of the present invention is a lubricant oil inner flow passage for circulating and supplying lubricating oil circulating the engine, respectively formed therein by a casting operation so as to communicate with the external flow path; A low temperature coolant internal flow passage circulating and supplying the high temperature air compressed by the turbocharger and the low temperature coolant for cooling the oil circulating in the engine; A high temperature coolant internal flow passage circulating and supplying hot water for cooling a high temperature part such as a piston and a cylinder liner; And a lubricating oil pump mounting hole drilled by casting to insert a lubricating oil pump communicating with the lubricating oil internal flow path. The pump module includes an integrated lubricating oil and a coolant flow path formed therein.

Pump module, lubricating oil pump, engine, lubricating oil, high temperature coolant, low temperature coolant

Description

Pump module having lubrication and cooling water flow channel molded inside

The present invention relates to a pump module in which a lubricating oil and a cooling water flow path are formed therein. Specifically, a flow path of a lubricating oil pump and a cooling water pump installed in an engine is formed by a casting operation inside the module without protruding to the outside. The present invention relates to a pump module in which a pump is inserted to process a hole communicating with the pump so that lubricant oil is circulated and supplied.

Engines using fossil fuels are powered by the explosion stroke of air and fuel supplied inside the cylinder. In addition, the engine has a structure that is supplied with lubricating oil and coolant of low and high temperature for smooth operation. A lubricant oil pump and a coolant pump are installed to supply the lubricant and the coolant.

However, the conventional lubricating oil pump and the coolant pump have a problem in that the design is complicated and difficult to repair because the engine is installed with a complicated flow path.

Look in more detail below.

6 is an exemplary view showing an engine equipped with a conventional lubricating oil pump and a coolant pump, and FIG. 7 is an exemplary view showing a complicated pipe structure connected to a conventional lubricating oil pump.

In the case of the existing engine, as many pipes and external supports as shown in Figs. 6 and 7 are combined. Therefore, if the pump needs to be replaced, most of the piping system must be removed before it can be replaced.

Looking at the circle portion shown in Figure 7 shows the lower part of the lubricating oil pump protrudes from the engine block and connected to a plurality of supports and pipes.

In the case of such an external pump, there is an inlet pipe, an outlet pipe, and a pipe connection for each pump, such as a lubrication oil pump and a high temperature cooling water pump. High Temperature Cooling Water Pump and Low Temperature Cooling Water Pump The pipes are connected to these three pumps, making it difficult to assemble and disassembling the pipes placed in front of the pumps. In order to disassemble the pump, it is troublesome to remove all the installed pipes.

In addition, in the case of a pipe connection, there is a problem that space is limited because support is required.

An object of the present invention for solving the above problems is to replace the pipe associated with the lubricant (LO) for smooth engine operation to the internal casting shape without external projection so that no pipe, connection, support in the front of the pump In addition, the LO pump is installed inside, and the pump module composed of internal flow paths to the pipes of LT Cooling Water and HT Cooling Water is very convenient for pump maintenance. To provide.

The present invention to achieve the object as described above and to perform the problem for eliminating the conventional drawbacks are formed respectively by the casting operation to communicate with the external flow path,

A lubricating oil internal flow passage for circulating and supplying lubricating oil circulating in the engine;

A low temperature coolant internal flow passage circulating and supplying the high temperature air compressed by the turbocharger and the low temperature coolant for cooling the oil circulating in the engine;

A high temperature coolant internal flow passage circulating and supplying hot water for cooling a high temperature part such as a piston and a cylinder liner; And

Lubricating oil pump mounting hole perforated by the casting operation so that the lubricating oil pump communicating with the lubricating oil inner flow path;

The lubricating oil inner flow path is characterized in that the sea water pump mounting hole is formed in which the sea water pump is inserted.

The lubricating oil inner flow path is formed in communication with the outside, the lubricating oil inlet through which the lubricating oil flows; A lubricant oil outlet for discharging lubricant to the cooler; And a lubricating oil thermostatic valve for discharging lubricating oil only when the temperature is lower than or equal to a predetermined temperature.

The low temperature coolant internal flow path includes a low temperature coolant inlet through which the low temperature coolant passing through the air cooler and the lubricating oil cooler is formed to communicate with the outside; A low temperature coolant outlet for discharging the low temperature coolant to a low temperature coolant pump; And a low temperature coolant thermostatic valve for discharging water above a predetermined temperature and recirculating the water below a predetermined temperature.

The high temperature coolant internal flow path includes two high temperature coolant inlets formed in communication with the outside and into which the high temperature coolant flows; A hot coolant outlet for discharging hot coolant to the outside of the engine; It is characterized in that the high-temperature cooling pump transfer outlet for sending the high temperature coolant to the high temperature cooling pump and the high temperature cooling water thermostatic valve for recirculating when the temperature is recyclable and for high temperature cooling water outlet for high temperature.

The present invention is a lubricating oil circulating in the engine, the high-temperature coolant and the low-temperature coolant flow path is formed by the casting operation inside the same pump module, the lubricating oil pump and the coolant pump installed in the engine by inserting the lubricating oil pump inside the pump module Most of the external piping, connections, and support are removed or reduced, which makes it easy to access and exchange during maintenance.

In addition, the pipes are assembled during the assembly of the pumps by forming the inner pipes (flow paths) in the casting-type blocks and embedding the pumps in the respective flow paths. It can replace the role of complex pipes and connections without the need for this,

In addition, the external pipe, connection (connection) and support (removal) can be removed or reduced and connected to the pump module, when maintained (maintain), it is easy to access and exchange from the front of the pump module,

In addition, in the pump module of the present invention is a useful invention having the advantage that the lubricating oil pump is completely embedded and only the lubricating oil pump head portion protruding low and more advantageous shape for maintenance, repair, and manager's safety, industrial use is expected to be greatly expected.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In describing the present invention, when it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

1 is a perspective view of a pump module according to an embodiment of the present invention, Figure 2 is an exemplary view showing three internal flow paths formed inside the pump module according to an embodiment of the present invention.

As shown, the pump module of the present invention includes a lubricating oil internal flow passage 1 for circulating and supplying lubricating oil circulating the engine, respectively formed therein by a casting operation so as to communicate with an external flow path;

A low temperature coolant internal flow passage (2) which circulates and supplies a low temperature coolant for cooling the air circulated by the turbocharger formed by the casting operation in the lower part of the lubricating oil internal flow passage (1) and the oil circulating the engine;

In the lower portion of the lubricating oil inner flow passage 1, there is formed a high temperature coolant inner flow passage 3 for circulating and supplying hot water for cooling a hot portion such as a piston and a cylinder liner formed by a casting operation.

In addition, the lubricating oil pump (not shown) in communication with the lubricating oil inner flow path is inserted into the lubricating oil pump mounting hole (4) perforated by the casting operation; is integrally configured to include.

In addition, a sea water pump mounting hole 5 into which a sea water pump (not shown) is inserted is formed in the lubricating oil inner flow path. The sea water pump is a pump that pumps sea water when required by the owner, and it is installed in the pump module in case it is needed later. The sea water pump is installed in the form of a lube oil passage where the pump is inserted together with the housing. The reason is that the pump shaft should be lubricated, so the internal lubrication is done with a small hole in the housing, and the sea water inlet / outlet is installed externally. In other words, the sea water pump has nothing to do with the internal flow path, and the sea water pump is inserted into the lubricating oil flow path so that the sea water pump is inserted together with the housing to facilitate lubrication of the gears inside the pump and to design a small portion protruding outward. will be.

The role of the low temperature cooling water (LT water) and the high temperature cooling water (HT water) flowing through the low temperature cooling water internal flow passage (2) and the high temperature cooling water internal flow passage (3) located under the lubricating oil internal flow passage. This will be described below.

Engine cooling is divided into two main categories. The first is to cool the hot air compressed by the turbocharger and the circulatory cooling to cool the oil that circulates the engine. The second is to cool hot spots such as pistons and cylinder liners.

The first cooling is a process where low temperature coolant (LT water) is compressed air close to 200 ° C through an air cooler, followed by a low cooler near 70 ° C after cooling. This is cooled by using LT water so that the temperature difference is relatively large, but the part where the blast heat is directly transferred, such as piston, cylinder liner, water jacket, etc., the second cooling circuit, is cooled by HT water at 60 ℃. Done. This is because the engine room temperature drops when the engine cools down, and the engine efficiency decreases, or low-temperature corrosion occurs. (The sulfur component in the exhaust gas cools below 100 ℃. The water vapor turns into water. This can be generated using high temperature cooling water (HT water). This principle is to cool with water of low temperature (LT) and high temperature (HT).

Figure 3 is an exemplary view showing the lubricating oil inner flow path of the pump module of the present invention, as shown in the lubricating oil inner flow path (1) is formed in communication with the outside, the lubricating oil inlet 11 is introduced; A lubricating oil outlet 12 for discharging oil to an oil cooler; And a lubricating oil thermostatic valve 13 for discharging oil only when the temperature is lower than a predetermined temperature.

More specifically, the circulation path of the lubricating oil by the lubricating oil inner flow passage 1 will be described below with reference to the drawings.

When oil flows into the lubrication oil inlet (11), the lubricating oil moves in the direction of the arrow by the embedded lubricating oil pump (not shown). After that, the lubricating oil moved by the lubricating oil pump is sent to the oil cooler to cool. After that, the lubricant thermostatic valve 13 mixes the lubricant cooled by the cooler and the lubricant not cooled, and emits only when the temperature is lower than the specified temperature. After that, it is injected into the engine for lubrication and cooling of various internal bearings. After lubrication and cooling, the lubricating oil is collected in an oil sump (not shown) on the engine floor. After that, the cycle starts again and the lubricant is sucked in by the lubricant pump and the above cycle is repeated.

For reference, a thermostatic valve such as the lubricating oil thermostatic valve is a valve that receives fluid from two flow paths and discharges the fluid at a specified temperature when the user specifies the desired temperature. For example, if you connect a pipe with 10 ~ 20 ℃ water and a pipe with 50 ~ 60 ℃ water to the thermostatic valve and set it to 30 degrees, the valve moves to control the amount of water so that only 30 ℃ water comes out. Valve.

Figure 4 is an exemplary view showing an internal low temperature water flow path of the pump module of the present invention, as shown in the low temperature cooling water internal flow path 2 according to the present invention, the air cooler and the lubricating oil cooler formed in communication with the outside A low temperature coolant inlet 21 through which the low temperature coolant passed; A low temperature coolant outlet 22 for discharging the low temperature coolant to the water storage tank outside the engine; And a low temperature coolant thermostatic valve 23 for discharging water above a certain temperature out of the engine and recirculating water below a certain temperature.

For reference, the low temperature coolant outlet 22 discharges the low temperature coolant passing through the air cooler and the lubricating oil cooler to an external storage tank that is not associated with the engine. Cold water from the low temperature coolant pump is connected to the thermostatic valve and recycled once the water and new water have been circulated to the proper temperature. In a real ship, it has a large tank for storing fresh water. In some cases, sea water is not used for engine cooling, but due to the salt, it is necessary to apply special coatings to all flow paths. Therefore, fresh water is used for cooling, which uses large storage tanks. Seawater cools the tanks and draws them back from the coolant pumps.

Specifically, the circulation path of the low temperature coolant by the low temperature coolant internal flow passage 2 will be described below with reference to the drawings.

The low temperature cooling water inlet 21 is an inlet for receiving low temperature cooling water passing through an air cooler and a lubrication oil cooler, and the low temperature cooling water introduced therethrough is a low temperature cooling water thermostatic valve. 23) is immediately discharged through the low temperature cooling water outlet 22 when there is no.

The low temperature cooling water thermostatic valve 23 discharges water at 30 ° C or higher out of the engine, and recycles water at 30 ° C or lower.

The path at the time of recirculation is supplied to the air cooler to cool the air, and then is supplied to the lubrication oil cooler to cool the lubricating oil, and then repeats the circulation path flowing into the low temperature coolant inlet 21.

5 is an exemplary view showing an internal hot water flow path of the pump module of the present invention, as shown in the high temperature coolant internal flow path 3 according to the present invention is formed in communication with the outside, the two high temperature coolant inlet through which the high temperature coolant flows in (31a, 31b); A high temperature coolant outlet 32 for discharging the high temperature coolant to the outside of the engine; The high temperature cooling pump feed outlet 33 which sends the high temperature coolant to the high temperature cooling pump and the high temperature coolant thermostatic valves 34a and 34b which are recycled when the temperature is recyclable and sent to the high temperature coolant outlet when high temperature are formed.

Specifically, the circulation path of the hot coolant by the hot coolant internal flow passage 3 will be described below with reference to the drawings.

Water from the HT water inlet (about 60 ° C.) is introduced from the outside through the two hot coolant inlets 31a and 31b. At this time, select one of two places to enter.

After that, the hot water introduced is sent to the high temperature cooling water pump (HT water pump) through the high temperature cooling pump transport outlet 33.

After that, the high temperature cooling water pump (HT water pump) supplies high temperature water to cool high temperature parts such as a piston, a cylinder liner, and a water jacket.

After the high temperature coolant thermostatic valve (34a, 34b) is introduced into the recirculated path in the case of reusable temperature, if the high temperature (80 ℃ or more) has a path to discharge to the outside through the hot coolant outlet 32 and .

The present invention is not limited to the above-described specific preferred embodiments, and various modifications can be made by any person having ordinary skill in the art without departing from the gist of the present invention claimed in the claims. Of course, such changes will fall within the scope of the claims.

1 is a perspective view of a pump module according to an embodiment of the present invention,

Figure 2 is an exemplary view showing three internal flow paths formed inside the pump module according to an embodiment of the present invention,

Figure 3 is an exemplary view showing an internal lubricating oil flow path of the pump module of the present invention,

Figure 4 is an exemplary view showing an internal low temperature water flow path of the pump module of the present invention,

Figure 5 is an exemplary view showing an internal high temperature water flow path of the pump module of the present invention,

6 is an exemplary view showing an engine equipped with a conventional lubricating oil pump and a cooling water pump,

7 is an exemplary view showing a complicated pipe structure connected to a conventional lubricating oil pump.

<Description of the symbols for the main parts of the drawings>

(1): Lubricant oil flow path (2): Low temperature coolant oil flow path

(3): Internal flow path of high temperature coolant (4): Lube oil pump mounting hole

(5): Sea water pump mounting hole (11): Lubrication inlet

(12): Lubricant oil outlet (13): Lubricant thermostatic valve

(21): low temperature cooling water inlet (22): low temperature cooling water outlet

(23): Low temperature coolant thermostatic valve (31a, 31b): High temperature coolant inlet

(32): high temperature cooling water outlet (33): high temperature cooling pump feed outlet

(34a, 34b): High temperature coolant thermostatic valve

Claims (5)

Each formed inside by casting to communicate with an external flow path, A lubricating oil internal flow passage 1 for circulating and supplying lubricating oil circulating in the engine; A low temperature coolant internal flow passage (2) which circulates and supplies the low temperature coolant for cooling the air circulated by the turbocharger and the oil circulating in the engine; A high temperature coolant internal flow passage (3) for circulating and supplying hot water for cooling a high temperature part such as a piston and a cylinder liner; And Including integrally, including; a lubricating oil pump mounting hole (4) perforated by a casting operation so that the lubricating oil pump communicating with the lubricating oil inner flow path is inserted The lubricating oil internal coolant (1) is a pump module having a lubricating oil and a cooling water flow path formed therein, characterized in that a sea water pump mounting hole (5) is formed in which the sea water pump is inserted. delete The method according to claim 1, The lubricating oil inner flow path 1 is formed to communicate with the outside, A lubricating oil inlet 11 into which lubricating oil flows; A lubricating oil outlet 12 for discharging lubricating oil to an oil cooler; And a lubricating oil thermostatic valve (13) for discharging lubricating oil only when the temperature is lower than or equal to a predetermined temperature. The method according to claim 1, The low temperature cooling water inner flow passage (2) is formed in communication with the outside, A low temperature coolant inlet 21 through which the low temperature coolant passed through the air cooler and the lubricating oil cooler is introduced; A low temperature coolant outlet 22 for discharging the low temperature coolant to the water storage tank outside the engine; And a low temperature coolant thermostatic valve (23) configured to discharge the water above a predetermined temperature out of the engine and to recycle the water below the predetermined temperature. The method according to claim 1, The high temperature coolant inner flow passage (3) is formed in communication with the outside, Two hot coolant inlets 31a and 31b into which hot coolant is introduced; A hot coolant discharge port 32 discharging hot coolant to the outside of the engine; Lubricating oil characterized in that the high temperature cooling pump feed outlet 33 for sending the high temperature coolant to the high temperature cooling pump 33 and the high temperature coolant thermostat valve 34a and 34b for recirculating at a recirculating temperature and for high temperature coolant discharge to the high temperature coolant outlet. And a pump module having a cooling water flow path formed therein.

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