JPH08218886A - Lubrication mechanism for v-type diesel engine - Google Patents

Abstract

PURPOSE: To form a diesel engine, having cylinders arranged in a V-shape, in a compact manner as mush as possible, to form a lubricating mechanism for each part of the V-type diesel engine in a simple composition, and to prevent the mounting position of auxiliary devices mounted on the side of a cylinder block from becoming hard to install due to location of a main gallery. CONSTITUTION: A lubrication oil pump 55 is arranged in a gear case 3, lubrication oil is fed to a portion extending from a gear case to a lubrication oil external filter, attached to the side of a cylinder block 2, through an oil passage, and lubrication oil is fed from a lubrication filter directly to the bearing journal of a crank shaft S. Further, the direction of a group is changed so as to simply cope with the situation even when a rotation direction of the lubrication oil pump is differed but keeps a distance between a lubrication pump shaft and a crank shaft at the same value.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a diesel engine lubricating oil supply system in which cylinders are arranged in a V-shape.

[0002]

2. Description of the Related Art Conventionally, a technique relating to the construction of a V-type diesel engine has been known. For example, Japanese Patent Laid-Open No. 6-272615 and Japanese Utility Model Laid-Open No. 6-80
829 and Japanese Patent Laid-Open No. 6-299862. Further, a technique of using a single lubrication system from the crankshaft to the camshaft is disclosed in US Pat. No. 4,449,949.
Techniques such as No. 1 are known.

[0003]

In the above-mentioned prior art, the lubricating oil supply system to each part of the lubricating mechanism of the V-type diesel engine is configured to provide a main gallery and to lubricate the crankshaft. In the main gallery, a boss is provided on the side wall of the cylinder block, and a drill hole or a cast hole is bored in the boss portion. When the main gallery is formed by providing the bosses in this way, the auxiliary equipment mounted on the side wall of the cylinder block is arranged at a position avoiding this portion, and the entire width of the lubrication mechanism of the V-type diesel engine is arranged. Was getting bigger. In addition, the rotation direction of the crankshaft may differ depending on the type of machine body in which the engine is mounted, and in this case, it was necessary to change the rotation direction of the lubricating oil pump. The present invention solves the above problems with a simple configuration.

[0004]

The problems to be solved by the present invention are as described above. Next, the means for solving the problems will be described. In claim 1, the cylinder H
L and HR are arranged in a V-shape in a front view, and an intake / exhaust cam and a fuel injection pump drive cam are arranged on the same cam shaft 1 between the V-shaped cylinders. In the V-type diesel engine in which the push rods 24, 24 of the left and right cylinders and the fuel injection nozzles 26, 27 are arranged in between, the cylinder block 2 and the gear case 3 are joined, and the lubricating oil filter L is provided on the side of the cylinder block 2. Attached,
A lubricating oil pump D is configured in the gear case 3, the lubricating oil discharged from the lubricating oil pump D is supplied to the lubricating oil filter L, and the lubricating oil filter L passes through an oil passage in the cylinder block 2 to It is configured to be supplied to the bearing portion of the crankshaft S.

According to a second aspect of the present invention, in the lubricating oil pump D, the rotation directions of the pump rotors 90 and 61 of the lubricating oil pump D can be reversed left and right, and the shaft center of the pump shaft 55 of the lubricating oil pump D and the discharge hole. 56 is the same position, and the positions of the grooves 97 and 98 and the suction hole 99 are different.

[0006]

Next, the operation will be described. According to claim 1, in the V-type diesel engine in which the cylinders HL and HR are arranged in a V-shape in a front view as in the prior art, an intake / exhaust cam and a fuel injection pump drive cam are provided between the V-type cylinders. To
The fuel injection pump device and the governor device are arranged on the same camshaft 1 and on the side opposite to the crankshaft of the camshaft, and the push rods 24.2 of the left and right cylinders are arranged between the V-shaped cylinders.
4 and the fuel injection nozzles 26 and 27 are arranged, in the prior art, two cam shafts for fuel injection and a cam shaft for intake and exhaust valves are arranged instead of one cam shaft 1. It was possible to configure it, and it was possible to configure the height of the top and bottom to be low. Further, since it is not necessary to provide a main gallery in the lubricating oil supply system for each part of the lubrication mechanism of the V-type diesel engine and the crankshaft can be lubricated, the boss is provided on the side wall of the cylinder block to provide the main gallery. It is no longer necessary to provide or to form a drill hole or a cast hole in the boss portion. Therefore,
In order to configure the main gallery, it is no longer necessary to arrange auxiliary equipment mounted on the side wall of the cylinder block in a position to avoid the main gallery, and the overall width of the V-type diesel engine can be made narrow.

According to the second aspect, the rotation directions of the pump rotors 90 and 61 of the lubricating oil pump D can be reversed right and left, and the axis of the pump shaft 55 of the lubricating oil pump D and the discharge hole 5 can be changed.
Since 6 is the same position and the positions of the grooves 97 and 98 and the suction hole 99 are different, even if the rotation direction of the crankshaft may be different depending on the type of the machine body on which the engine is mounted, the rotation direction of the lubricating oil pump may be different. Can be easily changed correspondingly, and in this case, the drive gear 21 and the drive gear 43 of the lubricating oil pump can use the same parts.

[0008]

EXAMPLES Next, examples will be described. FIG. 1 is a front view of a V-type diesel engine of the present invention, and FIG.
Type diesel engine front sectional view, FIG. 3 is a right side sectional view of the same V type diesel engine, FIG. 4 is a plan view of the same type V diesel engine, and FIG. 5 is a gear case 3 and cylinder block 2 of the same type V diesel engine. 6 is a front sectional view of the cylinders HL and HR in the upper portion of the V-type diesel engine, and FIG. 7 is a lubricating oil filter L and a working machine hydraulic oil pump 12.
FIG. 8 is a front view of a vertical type V-type diesel engine of the present invention in which the crankshaft of the present invention is used in a vertical state, and FIG. 9 is a right side sectional view of the vertical type V-type diesel engine.

FIG. 10 is a right side sectional view of the vertical type, FIG. 11 is a front view of the cylinder block 2, and FIG.
Is a front sectional view of the cylinder block 2, FIG. 13 is a left side view of the cylinder block 2, FIG. 14 is a right side sectional view of the cylinder block 2, FIG. 15 is a right side view of the cylinder block 2, and FIG. FIG. 17 is a front sectional view of the lubricating oil external filter mounting seat 74 of the cylinder block 2, FIG. 18 is a plan sectional view of the lubricating oil external filter mounting seat 74, FIG. 19 is a rear view of the gear case 3, and FIG. FIG. 21 is a front view of the gear case 3, and FIG. 21 is a side sectional view showing an oil passage in the upper part of the gear case 3.

FIG. 22 is an internal view of the gear case 3 in the grooves 97 and 98 which form the lubricating oil pump D, and FIG. 23 is a drawing showing the structure of the lubricating oil pump D clockwise when viewed from the rear. 24 is a drawing showing the configuration of the lubricating oil pump D which is counterclockwise when viewed from the rear surface, and FIG.
26 is a plan view showing a state in which a rocker arm 47 is arranged, FIG. 26 is a plan view of a cylinder head 28 showing a lubricating mechanism of a pivot portion of the rocker arm 47, and FIG. 27 is a V-type diesel engine which is an essential part of the present invention. FIG. 3 is a schematic view showing the lubrication mechanism of FIG.

The V-type diesel engine of the present invention has two specifications: a horizontal type which is used with the crankshaft S horizontal and a vertical type which is used with the crankshaft vertical. Most of the parts such as the cylinder block 2 are common between the vertical type and the horizontal type, but the crankshaft S and the gear case 3 are different because the power take-out direction is different and the position of the oil pan is different. To do. Also, since the types of mounted bodies are different, the layout of the radiator R is different.

1 and 2, the V-type diesel engine of the present invention is shown in a front position with the radiator R removed. The main body of the V-type diesel engine is configured by joining the cylinder block 2 and the gear case 3. Since the cylinder block 2 is manufactured by casting, the front side is widely opened to enable extraction. Since this opening is opened as the engine rotates, bolt holes 59 are formed on the front surface of the cylinder block 2.
4 are screwed into the bolt hole 59, and the opening prevention reinforcement 5
6 is screwed. This prevents the opening of the front surface of the cylinder block 2 from being opened.

Cylinders HL and HR are provided on the cylinder block 2 side. And the cylinder HL,
Cylinder heads 28 and 29 are mounted and fixed on the upper part of the HR, and cylinder head covers 36 and 37 are fixed on the cylinder heads 28 and 29. Fuel injection nozzles 26 and 27 are arranged on the cylinder heads 28 and 29, respectively. The fuel injection nozzles 26 and 27 include V-shaped cylinders HL and HR, a cylinder head 28,
29 and the cylinder head covers 36 and 37. Then, from the fuel injection pump P arranged at the rear of the governor case A, the high pressure fuel pipe 10
The discharged high-pressure fuel is supplied via 1.

As shown in FIG. 2, push rods 24, 24 are interposed between the cam shaft 1 inside the cylinder block 2 and the rocker arms 47, 47 inside the cylinder head covers 36, 37. The push rod 24 is arranged between the V-shaped cylinders formed by the cylinders HL and HR. Further, the governor case A mounted on the upper surfaces of the cylinder block 2 and the gear case 3 is fixed inside the push rods 24. A governor device G is configured inside the governor case A.

Left and right pistons 6 and 7 are slidably fitted inside the cylinders HL and HR, and the pistons 6 and 7 and the crankshaft S are connected by connecting rods 5 and 4. There is. A cam shaft 1 is arranged at a position between the cylinders HL and HR, and an intake / exhaust cam 31 and a fuel injection pump driving cam 30 are formed on the cam shaft 1. As shown in FIG. 1, pulleys 14 and 15 are fixed to a portion where the front end of the crankshaft S projects from the gear case 3, and a belt 18 is provided between the pulley 15 and the pulley 13 of the working machine hydraulic oil pump 12. It is wound.

The V-belt 17 is wound between the pulley 14 fixed to the portion where the crankshaft S protrudes from the gear case 3 and the fan shaft 40 of the radiator fan F at the upper part, and the V-belt 17 of the radiator R is wound. The radiator fan F is being driven. The radiator fan F supports a portion of the fan shaft 40 by a bearing base 60, and the bearing base 60 is fixed to the front surface of the gear case 3. The bearing base 60 is shown in FIG.
As described above, the mounting position can be changed between the state in which the fan shaft 40 is located below and the state in which the fan shaft 40 is located above. This makes it possible to change the position of the radiator fan F and further change the position of the radiator R.

A main body formed by the cylinder block 2 and the gear case 3 has a starter K arranged on the right side and a working machine hydraulic oil pump 12 arranged on the left side of a recess formed below the left and right cylinders HL and HR. are doing. As shown in FIG. 7, a lubricating oil filter L is disposed behind the working machine hydraulic oil pump 12 at a position hidden by the working machine hydraulic oil pump 12. A cooling water pump 8 is fixedly installed on the upper left side of the front surface of the gear case 3, and cooling water is supplied from a cooling water hole 39 to a jacket on the outer circumference of the left cylinder HL, and an outer circumference of the right cylinder HR is provided. Cooling water is supplied to the jacket through a cooling water pipe 38.

Exhaust pipes 34 and 35 are connected to the front surfaces of the cylinder heads 28 and 29, respectively. The exhaust pipes 34 and 35 are connected to the exhaust muffler M of FIG. In the case of the horizontal type, the exhaust muffler M is arranged at the upper part of the V type diesel engine,
The radiator R is arranged at the front of the engine. Further, a regulator lever 41 projects upward from a governor device G arranged between the V-shaped cylinder heads 28 and 29. In addition, the fuel injection nozzle 26
The glow plug 42 is inserted and fixed toward the pre-combustion chamber 44 into which the tip of the fuel injection nozzle 26, 27 is inserted, at the side of the portion where 27 is screwed into the cylinder head 28, 29.

In FIG. 2, a balance weight 46 is attached to the circumference of the crankshaft S, and a fuel injection pump P arranged at a position behind the governor case A is shown. Further, the rocker arm 47 inside the cylinder head cover 36 is pushed up from the intake / exhaust cam 31 via the push rod 24, and the other end of the rocker arm 47 presses the intake / exhaust valve 48 to open / close.

In FIG. 3, at the front end of the crankshaft S,
A drive gear 21 is fixedly installed inside the cylinder block 2, and the drive gear 21 meshes with a drive gear 43 of a lubricating oil pump supported and arranged inside the gear case 3 at a position on the left side in a front view. There is. The drive gear 21 meshes with the cam shaft gear 20 fixed on the cam shaft 1 at the upper side. The cam shaft gear 20 meshes with the governor shaft gear 19 on the governor shaft 9 of the governor device G arranged above.
A governor weight 25 is disposed in a portion where the governor shaft 9 is disposed inside the governor case A, and the governor weight 25 opens and closes when the governor shaft 9 rotates, thereby rotating the L-shaped governor lever 45. The adjustment rack of the fuel injection pump P is slid. A regulator lever 41 is provided so as to project from the governor case A, and the number of rotations can be changed by the operation of the operator.

A fuel feed pump drive cam 58 for driving the fuel feed pump Q is provided on the cam shaft 1 on the cylinder block 2 side, and then four intake and exhaust cams 31 are projected. Two fuel injection pump driving cams 30 are provided on the flywheel W side in a protruding manner. The governor case A in which the governor device G is disposed is disposed on the upper surface of the portion where the cylinder block 2 and the gear case 3 are joined, and fuel is injected onto the bracket 50 portion of the extension of the governor case A. The pump P is fixed. In addition, a bracket 4 is provided upward from the cylinder block 2.
9 is provided so as to support the air cleaner C on the bracket 49. A flywheel W is attached to a portion of the crankshaft S protruding rearward from the cylinder block 2 via a fan spacer 51. Further, connecting rods 4.5 are pivotally supported at positions between the balance weights 46 of the crankshaft S. An oil filter 52 is fixed to the lower portion of the cylinder block 2 and is projected from the oil pan portion inside the gear case 3.

In FIG. 4, a plan view of a V-type diesel engine is shown. The lubricating oil filter L is arranged at a position behind the cylinder HL, and is arranged side by side behind the working machine hydraulic oil pump 12 shown in FIG. 1.
A fuel oil filter 22 is suspended from the side of the fuel injection pump P, and a bracket is projected from the cylinder block 2 or the governor case A to support it. Further, a fuel feed pump Q is obliquely arranged on the front surface of the cylinder HL, and a driving rod of the fuel feed pump Q is projected into the cylinder block 2 so that the fuel feed pump above the cam shaft 1 is driven. It is in contact with the drive cam 58. The position of the fuel feed pump Q is illustrated in the front view of FIG. And the fuel injection nozzle 26.
A fuel return oil pipe 100, 100, 100 from the portion of 27 and the fuel injection pump P is extended to the fuel oil filter 22.

FIG. 5 shows an enlarged view of the horizontal type radiator R and the gear case 3. In the drawing, particularly, a portion to be illustrated is that a governor case A is placed on the upper portion of the cylinder block 2 and the gear case 3, and the governor case A is extended to form a spacer bracket which is a mounting table of the fuel injection pump P. This is the part that constitutes 50. A lubricating oil pump shaft 55 is pivotally supported on the gear case 3, and a driving gear 43 of the lubricating oil pump is fixed to an end of the lubricating oil pump shaft 55.
Meshes with. Further, pump rotors 90 and 61 are attached to the lubricating oil pump shaft 55. The pump rotor 61 is a gear fixed to the lubricating oil pump shaft 55, and the pump rotor 90 meshes with the 61 and slides on the outer periphery to rotate.

Further, in FIG. 6, the cylinders HL and HR are
The enlarged part of the part is shown. In FIG. 6, a lubricating oil filter L is arranged below the cylinder HL on the same side as the working machine hydraulic oil pump 12.
Further, the fuel injection nozzle 2 is provided between the push rods 24.
6 and 27 are arranged, and further, the governor device G and the fuel injection pump P are arranged at a position between the push rods 24 and 24.

In FIG. 7, the pulleys 13, 15, 16 are shown.
The working machine hydraulic oil pump 12 is shown, and the lubricating oil filter L is arranged at a position behind the working machine hydraulic oil pump 12. Further, the lubricating oil filter L is arranged below the fuel oil filter 22 and laterally of the cylinder block 2. The lubricating oil filter L is located behind the working machine hydraulic oil pump 12 when viewed from the front. A starter K is arranged at a position on the right side of the cylinder block 2, which is opposite to the position of the lubricating oil filter L and the position of the auxiliary machine N such as the working machine hydraulic oil pump 12.

As shown in FIG. 4, the fuel oil filter 22 is arranged on the flywheel W side of the cylinder block 2. When the vertical type is used, the fuel oil filter 22 is lower than the radiator R, but the highest position of the cylinder block 2. And even in the case of the horizontal type, it is arranged at the highest position of the fuel supply circuit up to the fuel injection pump P, which is higher than the fuel injection pump P, the cylinder heads 28 and 29, and the cylinder head covers 36 and 37. -ing As a result, the fuel oil that has passed through the fuel oil filter 22 can be deflated. The fuel oil filter 2
Up to 2 is supplied by the fuel feed pump Q driven by the above-mentioned fuel feed pump drive cam 58.

In FIGS. 8, 9 and 10, a vertical type V diesel engine is shown.
In this case, the gear case 3 is fixed to the working machine with the cylinder block 2 facing upward and the gear case 3 facing downward, so that the gear case 3 constitutes the main oil pan. To accommodate this, gear case 3
Has a structure that protrudes deeply downward. In addition, since there are many work machines below, the crankshaft S has a shape in which a power take-out portion is provided so as to project downward.

Further, in the case of the horizontal type, the radiator R arranged on the gear case 3 side is located below and cannot be arranged, and is arranged above the opposite side. The radiator fan F is fixed to the crankshaft S. Then, as shown in FIGS. 8 and 12, in this configuration, around the bolt for connecting the cylinder block 2 and the gear case 3 is positioned by the pipe knock 57 around the opening prevention reinforcing member 56. A screw bolt 63 is screwed inside the pipe of the pipe knock 57 to fix the cylinder block 2 and the gear case 3. In this way, the pipe knock 5
By providing 7, the lower part of the cylinder block 2 can be prevented from expanding and the cylinder block 2 can be positioned.

The configuration of the lubricating oil pump D will be described with reference to FIGS. 19 to 22. The lubricating oil pump D is a gear case 3
The lubricating oil pump shaft 55, on which the pump rotors 90 and 61 are mounted, is arranged in the concave portion configured as described above, and is driven by the driving gear 43 of the lubricating oil pump. When the pump rotors 90 and 61 rotate, the lubricating oil is sucked through the suction holes 99 provided in the groove 98, and the other groove 9
Discharge to 7. A discharge hole 96 is formed in the groove 97, and the lubricating oil is discharged by applying pressure to the discharge hole 96. A relief valve 65 is disposed on the discharge hole 96 side, and is configured to eject the lubricating oil for safety when the pressure exceeds a certain level.

Then, the lubricating oil which has passed through the discharge hole 96 and the relief valve 65 is inherited from the oil passage 64 of the gear case 3 to the oil passage 66 of the cylinder block 2 in FIG.

23 and 24, it may be desired that the vertical type and the horizontal type have different specifications, or even if the same type has different crankshaft S rotation directions. As shown, the gear case 3 is divided into two types. In the case of FIG. 23, the rotation direction of the pump rotors 90 and 61 is clockwise when viewed from the rear surface, and in the case of FIG. 24, the rotation direction is counterclockwise when viewed from the rear surface. However, in both cases, the distance a between the shaft center of the crankshaft S and the shaft center of the lubricating oil pump shaft 55 is the same, and the drive gear 21 and the drive gear 43 of the lubricating oil pump can use common parts. Is configured. The distance a is the same, but the rotation axis of the pump rotor 90 is different.

Next, the route after the lubricating oil discharged from the lubricating oil pump D enters the oil passage 64 from the oil passage 64 will be described. FIG. 27 shows the entire lubricating oil path. That is, the lubricating oil discharged from the lubricating oil pump D is
It passes through the oil passage 66 in the cylinder block to reach the lubricating oil filter L. The lubricating oil filter L passes through an oil passage 70 bored in the cylinder block 2 and reaches an internal oil passage 88 bored in the crankshaft S. A portion branched from the passage to the internal drilling oil passage 88 is supplied from the oil passage 76 to lubricate the journal portion at the rear end of the camshaft 1. The internal oil passage 88
Supply lubricating oil into the connecting rods 4 and 5. The lubricating oil reaching the opposite end of the crankshaft S lubricates the journal portion of the camshaft 1 from the oil passage 79.

Lubricating oil that has lubricated the journal at the front end of the camshaft 1 reaches the cylinder block 2 from the branch oil passages 84 and 82, passes through the bolt hole of the cylinder block 2 and the hole penetrating the cylinder head 28, and the rocker. Lubricate the arm 47. An oil passage system from the gear case 3 to the rocker arm 47 will be described with reference to FIGS. 11 to 25. FIG.
In FIG. 1, an oil passage 66 joined to and connected to the oil passage 64 of the cylinder block 2 is shown. The oil passage 66 is shown in FIG.
2, it passes through the boss portion of the cylinder block 2 and reaches the discharge hole 73 at the portion of the lubricating oil external filter mounting seat 74 shown in FIG. From the discharge hole 73, it enters the outside of the lubricating oil filter L attached to the lubricating oil external filter mounting seat 74, passes through the filter inside the lubricating oil filter L, and is filtered. From Figure 17 and Figure 1
8, the bearing journal 71 of the cylinder block 2 is reached.

An oil passage 72 is provided before reaching the bearing journal 71.
14, and an oil passage 76 is bored from 72 to the bearing journal 75 of the camshaft 1 in the upper part of FIG. 14 to lubricate the bearing journal 75 of the camshaft 1. The bearing journal 71 passes through an internally bored oil passage 88 inside the crankshaft S shown in FIG. 27 and is discharged to a bearing journal 80 provided in the gear case 3 shown in FIG. The oil passes through the oil passage 79 upward from the bearing journal 80, reaches the bearing journal 77 of the cam shaft 1 provided in the gear case 3, and lubricates the front portion of the cam shaft 1. The bearing journal 77 passes through the branched oil passages 84 and 82 branched to the left and right, and reaches the horizontal oil passages 83 and 81 at the upper end of the branched oil passages 84 and 82.

The horizontal oil passages 83 and 81 reach the oil passages 86 and 93 of the cylinder block 2 with the cylinder block 2 and the gear case 3 joined together. The oil passage 83 is shown in FIG.
As shown in FIG. 26, the cylinder head 29 is communicated with the insertion hole 79 of the head bolt for fixing it to the cylinder block 2, passes through the rocker arm shaft, and lubricates each rocker arm.

[0036]

Since the present invention is constructed as described above, it has the following effects. Since the cylinders HL and HR are arranged in a V-shape when viewed from the front, the V-shape is constituted.
Type diesel engine, an intake / exhaust cam and a fuel injection pump drive cam are arranged on the same camshaft 1 between V-shaped cylinders, and a fuel injection pump device is provided on the side opposite to the crankshaft of the camshaft. Since the governor device is arranged and the push rods 24, 24 and the fuel injection nozzles 26, 27 of the left and right cylinders are arranged between the V-shaped cylinders, in the prior art, the camshaft for fuel injection and the intake and exhaust valves are used. The two cam shafts were arranged, but it was possible to form one cam shaft 1 and to lower the vertical height. Further, unlike the prior art, it is possible to configure the cylinder for providing the main gallery because the crankshaft can be configured to be lubricated without the need for providing the main gallery in the system for supplying the lubricating oil to each part of the lubrication mechanism of the V-type diesel engine. It is no longer necessary to provide a boss on the side wall of the block or to form a drill hole or a cast hole in the boss portion. Therefore, in order to configure the main gallery, it is not necessary to arrange auxiliary equipment mounted on the side wall of the cylinder block in a position to avoid the main gallery, and the overall width of the V-type diesel engine can be made thin. It was.

As described in claim 2, the rotation directions of the pump rotors 90 and 61 of the lubricating oil pump D can be reversed right and left,
The shaft center of the pump shaft 55 of the lubricating oil pump D and the discharge hole 56 are at the same position, and the positions of the grooves 97 and 98 and the suction hole 99 are different. Therefore, the engine may rotate the crankshaft depending on the type of the machine body to be mounted. Even if the directions are different, it is possible to easily change the rotation direction of the lubricating oil pump, and in this case, the drive gear 21 and the driving gear 43 of the lubricating oil pump can use the same parts. Of.

[Brief description of drawings]

FIG. 1 is a front view of a V-type diesel engine of the present invention.

FIG. 2 is a front sectional view of a V-type diesel engine of the present invention.

FIG. 3 is a right side sectional view of the same V-type diesel engine.

FIG. 4 is a plan view of the same V-type diesel engine.

FIG. 5 is a gear case 3 of the same V-type diesel engine.
FIG. 3 is a right side sectional view of a cylinder block 2 and a radiator R.

FIG. 6 is a cylinder HL at the top of a V-type diesel engine,
Front sectional drawing of the part of HR.

7 is a plan view showing the arrangement of a lubricating oil filter L and a working machine hydraulic oil pump 12. FIG.

FIG. 8 is a front view of a vertical type in which the crankshaft of the V-type diesel engine of the present invention is used in a vertical state.

FIG. 9 is a right side sectional view of a vertical type V-type diesel engine.

FIG. 10 is a right side sectional view of the vertical type in the same manner.

FIG. 11 is a front view of a cylinder block 2.

FIG. 12 is a front sectional view of a cylinder block 2.

FIG. 13 is a left side view of the cylinder block 2.

FIG. 14 is a right side sectional view of a cylinder block 2.

FIG. 15 is a right side view of the cylinder block 2.

FIG. 16 is a plan view of a cylinder block 2.

FIG. 17 is a front sectional view of a lubricating oil external filter mounting seat 74 of the cylinder block 2.

FIG. 18 is a plan sectional view of a lubricating oil filter external mounting seat 74.

FIG. 19 is a rear view of the gear case 3.

FIG. 20 is a front view of the gear case 3.

FIG. 21 is a side sectional view showing an oil passage in the upper part of the gear case 3.

FIG. 22: Grooves 97.9 constituting the lubricating oil pump D
FIG. 8 is an inner view of the gear case 3 at the portion 8;

FIG. 23 is a drawing showing a configuration of a lubricating oil pump D that is clockwise when viewed from the rear surface.

FIG. 24 is a drawing showing a configuration of a lubricating oil pump D that is counterclockwise when viewed from the rear surface.

FIG. 25 is a plan view showing a state in which a rocker arm 47 is arranged on the upper surface of the cylinder block 2.

FIG. 26 is a plan view of a cylinder head 28 showing a lubricating mechanism of a pivotal support portion of a rocker arm 47.

FIG. 27 is a schematic view showing a lubrication mechanism of a V-type diesel engine, which is a main part of the present invention.

[Explanation of symbols]

 A Governor case C Air cleaner D Lubricating oil pump G Governor device HL, HR Cylinder M Exhaust muffler K Starter L Lubricating oil filter N Auxiliary machinery Q Fuel feed pump 1 Camshaft 2 Cylinder block 3 Gear case 4,5 Conrod 22 Fuel oil filter 55 Lubricant pump shaft 97/98 Groove 96 Discharge hole 90/61 Pump rotor

Claims (2)

[Claims] 1. Cylinders HL and HR are arranged in a V shape in a front view, and an intake / exhaust cam and a fuel injection pump drive cam are arranged on the same camshaft 1 between V-shaped cylinders. V
Between the left and right cylinder push rods 2
In a V-type diesel engine in which 4/24 and fuel injection nozzles 26/27 are arranged, the cylinder block 2 and the gear case 3 are joined, and a lubricating oil filter L is attached to the side of the cylinder block 2 to A lubricating oil pump D is formed in a portion, the lubricating oil discharged from the lubricating oil pump D is supplied to the lubricating oil filter L, and the lubricating oil filter L passes through an oil passage in the cylinder block 2 to move the crankshaft S. A lubrication mechanism for a V-type diesel engine, which is configured to be supplied to a bearing portion. 2. The lubricating oil pump D according to claim 1, wherein the rotation directions of the pump rotors 90 and 61 of the lubricating oil pump D can be reversed to the left and right, and the axis of the pump shaft 55 of the lubricating oil pump D and the discharge The holes 56 should be in the same position and the groove 9
7. A lubrication mechanism for a V-type diesel engine, characterized in that the positions of the intake holes 99 are different from those of the intake holes 99.