KR950013201B1 - Enigne for vehicles - Google Patents

Abstract

No content.

Description

Vehicle Engine Structure

1 is a schematic side view of an engine apparatus according to a first embodiment of the present invention.

2 is a schematic front view seen obliquely from above.

3 is a cross-sectional view taken along line III-III, with the auxiliary mechanism omitted from FIG.

4 is a partial cross-sectional view taken along line IV-IV in FIG.

Fig. 5 is a schematic side view, in section, of a portion of a second embodiment of the present invention;

6 is a front view with a cross section of a second embodiment;

Fig. 7 is a plan view showing an auxiliary mechanism drive and an oil pan in the second embodiment.

8 to 10 are similar to the first figure, but in particular show a third to fifth embodiment of the invention.

11 is a schematic side view of the engine apparatus seen from the left side of the engine apparatus according to the sixth embodiment of the present invention.

* Explanation of symbols for main parts of the drawings

10,110,210,310,410,510: Engine device 11,111,211: Engine body

15,115 Transmission 16,116 Differential device

17,117: drive system 18,118: engine housing

19,119: Main housing 20,120: Lower housing

21,121: crankshaft 21a, 121a: crank pulley

22,23: Balanced shaft 24,124: Transmission shaft

25,125 Drive shaft 26,126 Oil pan

27,127: bearing part 29,129: bearing part

31 Clutch 32 Outer Gear

36: drive belt 37,137: alternator

37a, 38a, 39a: Pulley 38,138: Water Pump

39: compressor 40: idler pulley

41: water pipe 43: camshaft

44: first chain 45: intermediate shaft

46: second chain 49: clutch housing

50,150: Oil pump 51,151: Drive shaft of auxiliary equipment

60: tension device 63: torque converter housing

64: oil pump 66: oil pump

67: box-shaped wall surface 68: driven sprocket

69: idle gear 70: rotating shaft

71: support member 72: eighth web

73: drive sprocket 74: chain

75: power output gear 76: oil filter

170: drive shaft 171: pulley shaft

172,173 Acceleration gear 205 Lower block

206: surge tank 207: intake manifold

208: cylinder head 225: exhaust manifold

226: intake passage 227: fuel injection valve

229: head cover 230: the radiator

The present invention relates to a structure of an engine apparatus of a vehicle including an engine and a power train.

Background Art Conventionally, a structure is known in which an engine main body is mounted horizontally in a vehicle and a transmission and a differential device are installed in parallel with the crank shaft so that the crank shaft extends in a direction transverse to the vehicle body. (For example, Japanese Patent Application Laid-Open No. 1-31655 and US Patent No. 4915070).

In engines for automobiles, for example, relatively small and lightly loaded auxiliary devices such as oil pumps or water pumps for lubricating oils are placed on the front end of the engine and driven directly or in gear coupling with the crankshaft. High-load aids, such as power-steering pumps or alternators, are located in the side position close to the front or rear end of the engine and are driven from the end of the crankshaft through a belt or chain. Is common.

For example, in the specification of the West German Patent No. 3838073, the engine main body and the transmission are installed in a state parallel to the vehicle body and mounted in a state inclined rearward, and the engine body and the transmission are formed in front of the engine main body by the rearward inclination. The auxiliary mechanism is arranged in the space, and the auxiliary mechanism is configured to be driven by a belt that extends from the crankshaft.

However, in a front engine front drive vehicle, it is common to arrange a transmission in series with the engine main body, and as described in Japanese Patent Laid-Open No. 1-31655 described above by shortening the length in the vehicle width direction where both are combined. Even if the transmission is installed parallel to the crankshaft of the engine body and the transmission (drive system), each one requires an oil pan (oil pan), which has a complicated structure and a problem of increasing the oil capacity.

In other words, the amount of oil stored in the oil pan is usually required to reduce the oil level from the oil filter during rapid turning and rapid stopping of the vehicle, so that the amount of oil does not cause inhalation of air. By storing the oil in both the oil pan on the engine main body side and the oil pan on the transmission side, the amount of oil as a whole increases.

In addition, in order to reduce the amount of oil, oil pans are formed by deep drawing or baffle peates are formed at the bottom of the oil pans. It is disadvantageous in terms of cost.

In addition, since the front end and the rear end of the oil pan of the engine are relatively useless spaces, there is a need to utilize this portion to realize a miniaturized arrangement of the auxiliary mechanism.

However, by arranging the auxiliary mechanism in the part of the oil pan, it is necessary to reinforce the supporting part of the auxiliary mechanism so that bearing rigidity can be secured against the tension of the belt, or to pass the auxiliary drive shaft which is electrically connected to the crank shaft back and forth. If space is needed, the volume of the oil pan must be reduced in any way, and the capacity of the oil is not secured.

Therefore, in the prior art, the useless space of the part of the oil pan could not be fully utilized for the arrangement of the auxiliary equipment.

In addition, in an engine for a vehicle or the like, the engine body may be inclined to one side with respect to a vertical plane passing through the crankshaft due to an inclined structure such as an arrangement in the engine compartment, but in this case, the center of gravity of the engine body is on one side. There is a problem that, by deflecting or moving upward, the eccentricity of the weight is further promoted by the arrangement of the auxiliary mechanism, so that rolling of the vehicle body is likely to occur.

Further, if the drive system is arranged at the rear of the engine, the drive system is not adequately cooled by the flow of air while running, and an external oil cooler for cooling the transmission oil is required, which is desirable in terms of space, cost and weight. Not.

The first object of the present invention in the above-described considerations and techniques is to provide an engine device structure capable of reducing the amount of oil required without compounding the structure of the oil pan.

Another object of the present invention is to provide a structure of an engine apparatus in which a transmission disposed at the rear of the engine can be effectively cooled by the flow of air generated by the running of the vehicle.

It is another object of the present invention to provide a structure of an engine device in which belts and chains for driving the main tool and the auxiliary mechanism are simply arranged.

Another embodiment of the present invention is to provide a structure of the engine apparatus which can lower the engine cover without significantly increasing the size of the engine apparatus in the longitudinal direction of the vehicle body.

The engine device according to the present invention includes a drive system having an engine and a transmission, and the engine device is horizontally mounted to the vehicle body together with the drive system located at the rear of the engine.

The engine and drive system are installed in a single engine housing, and an oil pan common to the engine and drive system is mounted on the lower side of the engine housing below the engine and drive system.

The length of the oil pan in the transverse direction of the vehicle body is shorter than that of the engine housing, and the auxiliary mechanism is disposed in one space of the oil pan under the engine housing.

According to the present invention, since the oil pan is common to the engine and the drive system, even if an appropriate amount of oil is stored in the oil pan to prevent the oil level from lowering than the oil filter during rapid start, stop or sharp turn, the oil pan is required. The total amount of oil to be reduced is reduced, at the same time the number of owned parts is reduced, and the engine arrangement is simplified in structure.

If the oil pan is actually located in the center of the engine and drive system, the oil level fluctuation will be suppressed at the same time as when the vehicle is turning sharply, and thus the amount of oil will be small.

Since the oil pan in the transverse direction of the vehicle body is smaller in size than the engine housing, the flow of air generated when the vehicle body travels impinges on the transmission at the rear of the engine and can effectively cool it.

In addition, the auxiliary mechanism can be simply arranged by arranging the auxiliary mechanism in one space of the oil pan under the engine housing.

EXAMPLE

1 to 4, the engine apparatus 10 according to the first embodiment of the present invention is horizontally mounted on the front surface of the vehicle body (not shown) to the left facing the front side in FIG. 1, and the front wheel of the vehicle body. (Not shown) is driven.

The engine device 10 includes a four-cylinder engine body 11 having a cylinder head 12, a transmission system 17 composed of a transmission 15, and a differential device 16.

The engine body 11 and the drive system 17 are installed in a single engine housing 18.

The crankshaft 21 is provided in the said engine main body 11 along the horizontal direction of a vehicle, and the upper part of the engine main body 11 is inclined backward (right direction of FIG. 1).

In addition, in the engine main body 11, balanced shafts 22 and 23 are arranged on both sides of the upper part of the engine housing 18 for the purpose of reducing vibration of the engine.

On the other hand, below the engine main body 11, the drive shaft (differential shaft) 25 which extends to both sides from the transmission shaft 24 and the differential apparatus 16 is arrange | positioned in parallel with the crank shaft 21. As shown in FIG.

The engine housing 18 is comprised of the crankcase part 18a which comprises the cylinder block part of the engine main body 11, and the transmission case part 18b which mounts the drive system 17. As shown in FIG.

The transmission case part 18b is located lower than the crankcase part 18a.

The engine housing 18 is linearly divided into the main housing 19 and the lower housing 20 up and down at a position passing through the center of the crankshaft 21. An oil pan 26 is mounted below the lower housing 20.

On the divided surface of the main housing 19 and the lower housing 20, a bearing portion 27 for supporting the crankshaft 21 is formed, and at the rear side of the bearing portion 27, the main housing ( The bearing 29 for supporting the drive shaft 25 is formed in the divided surface of the 19 and the lower housing 20. As shown in FIG.

At one end of the engine main body 11, a clutch 31 is disposed at an extension of the crankshaft 21, and the output of the clutch 31 is applied to the outer gear 32 (FIG. 3). It is input to the transmission shaft 24 which passed through.

The output of the transmission shaft 24 is transmitted via the differential device 16 to the drive shaft 25 extending from the differential device 16 in the transverse direction of the vehicle body on the rear lower side of the engine body 11.

In the case of driving the rear wheel in addition to the residual wheel, the central differential is provided adjacent to the differential device 16, and the propeller shaft extending backward is connected to the central differential by a truncator. The oil pan 26 is disposed substantially in the center of the engine body 11 and the drive system 17.

In the longitudinal direction of the vehicle body, the oil pan 26 extends from the bottom of the engine body 11 (cylinder block) to the bottom of the drive system 17 near the drive shaft 25.

In the transverse direction of the vehicle body, the oil pan 26 is shorter than the engine housing 18, is disposed to be biased to the clutch 31, and the clutch 31 is located below the end lower housing of the oil pan 26. The space S and the transmission case portion 18b formed apart from each other extend beyond the end of the oil pan 26 in the transverse direction of the vehicle body.

The oil pan 26 is fixed to the lower portion of the lower housing 20 along the inclined surface, and the bottom of the oil pan 26 is deep at the front portion and shallow at the rear portion.

The upper surface of the lower housing 20 has a lower portion of the gear train of the crankcase portion 18a and the transmission 15 and the differential device 16 having the bearing portion 27 for supporting the crankshaft 21 at the opposite end. It consists of the transmission case part 18b surrounding a lower part, and 18a and 18b are integrally formed mutually.

In addition, the lower surface of the lower housing 20 is formed in an open spherical shape that is smaller than the open portion of the upper surface and coincides with the upper surface shape of the oil pan 26.

In the above-described engine device 10, various auxiliary mechanisms are arranged, and this auxiliary mechanism is mainly arranged in the space S on the side of the oil pan 26 separated from the clutch 31, and a crank pulley. It is driven by the belt 36 spanned by 21a.

The alternator 37 is disposed on the upper front surface of the engine housing 18, and the water pump 38 is disposed on the lower front surface of the engine housing 18.

Moreover, the air conditioner compressor 39 is arrange | positioned in the center lower part of the engine housing 18. As shown in FIG.

The alternator 37, the water pump 38, and the air conditioner compressor 39 have pulleys 37a, 38a, and 39a, respectively, and the drive belt 36 has a crank pulley 21a and a pulley ( 37a) -38a, and is disposed between the crankshaft 21 of the idler pulley 40 and the compressor 39 for an air conditioner.

The auxiliary mechanisms 37, 38, 39 and the differential device 16 are arranged in an arc shape around the crankshaft 21.

A water pipe 41 for supplying cooling water is connected between the water pump 38 and the upper portion of the engine housing 18 (cylinder block) of the engine body 11.

As shown in FIG. 1, the auxiliary mechanisms 37, 38, and 39 are located below the dividing surface of the engine housing 18, and the camshaft 43, the equilibrium shafts 22, 23, and the like are dividing surfaces. It is located at the top.

In addition, the auxiliary mechanisms 37, 38, and 39 are located on the side of the engine body 11 opposite the drive system 17, that is, on the front surface of the engine body 11.

On the upper portion of the cylinder head 12, a pair of camshafts 43 are disposed. The cam shaft 43 and the balance shafts 22, 23 are driven in the following manner.

That is, the intermediate shaft 45 is driven by the crankshaft to the first chain 44 and the camshaft 43 is driven by the intermediate shaft 45 decelerated by the second chain 46.

In addition, the balance shafts 22 and 23 are driven by the intermediate shaft 45 accelerated to the third chain.

As shown in FIG. 2, the clutch 31 is accommodated in the clutch housing 49, and the power steering oil pump 50 is disposed at the lower part of the clutch housing 49 and at the side of the oil pan 26. As shown in FIG.

The auxiliary drive shaft 51 extends inside the oil pan 26 and protrudes outward from the oil pan 26 at the left side of the oil pan 26 (see FIG. 2).

The auxiliary drive shaft 51 is connected to an oil pump for lubrication of the engine body 11 inside the oil pan 26 (not shown in FIG. 3), and for power steering outside the oil pan 26. It is connected to the oil pump 50.

The auxiliary mechanism drive shaft 51 is driven by the crankshaft 21 by a gear and a chain in the oil pan 26 and drives the oil pump.

In the first embodiment of the present invention, the engine oil for lubrication of various parts such as the piston of the engine body 11 and the bearing portion 27 of the crankshaft 21, the transmission 15, and the differential device of the drive system 17 ( The transmission oil for lubrication of various parts such as the shaft and the gear of 16) is stored in a common oil pan 26.

The engine oil and the transmission oil are the same oil, and the number of parts is reduced by using the same oil pan 26 for the engine oil and the transmission oil, the structure of the engine device is simplified, and the assembly of the engine device is easy.

The air flow introduced from the front of the vehicle while driving touches the front of the engine device 10 to cool it.

Part of the flow of air is guided by the water pump 38, the compressor 39, and the pulleys 38a, 39b, as shown by arrows C in FIGS. It passes through the side surface 26 and touches the transmission case part 18b of the rear part of the crankcase part 18a, and it cools the drive system 17 effectively.

In addition, by changing the depth of the oil pan 26 corresponding to the inclination of the engine main body 11, the overall height of the engine main body 11 can be made low while ensuring the required volume of the oil pan 26.

The air conditioner compressor 39 is disposed in the substantially center of the crankshaft 21 and the drive shaft 25 so that the air conditioner compressor 39, the crankshaft 21 and the drive shaft 25 are disposed at the apex of a triangle. By mounting directly on the top surface, the rigidity of the cross section of the stop point portion of the vibration of the differential device 16 can be maximized, and the vibration performance due to bending vibration during the engine operation, the reliability degradation due to deformation of the bearing, etc. The same can be suppressed by the use of rigidity of the assistive device.

Further, in the first embodiment, the engine body 11 is disposed on the divided surface of the engine housing 18, and the auxiliary mechanisms 37-39 are provided on the side of the engine opposite to the drive system 17. 11, the weight of the drive mechanism 17 on the rear side of the engine body 11 is balanced by the weight of the auxiliary mechanisms 37-39 on the front side of the engine body 11. Therefore, the deflection of the center of gravity of the engine apparatus 10 is suppressed, the center of gravity of the engine apparatus 10 is lowered at the same time, and the vibration and noise of the engine main body 11 are suppressed.

In addition, since the drive belt 36 for driving the auxiliary mechanisms 37-39 is arranged not to cross the chains 44 and 46 for driving the main mechanism of the engine body 11, The overall length of the engine device 10 in the width direction can be reduced without the interference of the drive belts 36 with the chains 44 and 46.

An engine apparatus 10 according to a second embodiment of the present invention will be described next with reference to FIGS. 5 to 7.

The parts shown in FIGS. 1 through 4 in FIGS. 5 through 7 are displayed by adding 100 to the relevant reference numbers given in FIGS. 1 through 4.

In FIGS. 5-7, the engine apparatus 110 is horizontally mounted on the front surface of a vehicle body toward the front surface to the left in FIG. 5, and is to drive the front wheel (not shown) of a vehicle body.

The engine device 110 includes a four-cylinder in-line engine device 111 having a cylinder head 112 and a drive system 117, and is composed of a transmission 115 and a differential device 116.

The engine 111 and the drive system 117 are housed in the same engine housing 118.

The engine 111 extends in the vehicle body width direction and has a crankshaft 121 having a crank pulley 121a at one end. The upper portion of the engine 111 is inclined to the rear of the vehicle body with respect to the vertical plane including the longitudinal axis of the crankshaft 121.

The transmission shaft 124 and the drive shaft (differential shaft) 125 extending in the opposite direction from the differential apparatus 116 are arranged in parallel with the crank shaft 121 on the rear side of the engine.

The engine housing 118 is linearly divided into the main housing 119 and the lower housing 120 according to the surface passing through the shaft of the crank shaft 121.

An oil pan 126 of an integral structure is mounted to the lower part of the lower housing 120.

Receiving portion 127 for supporting the crank shaft 121 is formed on the divided surface of the main housing 119 and the lower housing 120.

The bearing part 129 for supporting the drive shaft 125 is formed in the divided surface of the main housing 119 and the lower housing 120 at the rear part of the bearing part 127.

A surge tank 61 is disposed close to the lower housing 120 on the side of the engine 111 on the opposite side of the transmission 115, and the intake pipe 62 is bent upwards to form a cylinder head. (112).

As shown in FIG. 5, the oil pan 126 is actually triangular in shape in the axial direction of the crankshaft 121, and is formed to fill the space formed by the rear slope of the engine 111. As shown in FIG.

As clearly shown in FIG. 6, in the longitudinal direction of the engine 111, the oil pan 126 is located at the front end of the lower housing 120 from a position close to the torque converter housing 63 (FIG. 6). The distance extends to a position shorter than the right end), and extends over the entire length of the transmission 115 on the transmission side.

Thus, a space S adjacent to the front end of the oil pan 126 is formed below the lower housing 120.

An auxiliary mechanism drive shaft 151 penetrating the oil pan 126 in a direction parallel to the crank shaft 121 is provided in the portion of the oil pan 126 on the engine 111 side.

Then, at the rear end of the engine 111 (the left end in FIG. 6) and below the torque conveyor housing 63, an oil pump 64 for an automatic transmission is disposed close to the oil pan 126. On the outside of the oil pump 64 for automatic transmission, the oil pump 150 for power steering is arrange | positioned. The pumps 64 and 150 are connected in series to one end of the auxiliary drive shaft 151.

Moreover, the water pump 138 is arrange | positioned at the front end (right end of FIG. 6) of the oil pan 126 in the said space S, and this is connected to the other end part of the auxiliary drive shaft 151. As shown in FIG.

An oil pump 66 for engine lubrication is disposed near the wall facing the water pump 138 and is also connected to the auxiliary drive shaft 151.

As described above, the auxiliary mechanism drive shaft 151 is installed in the portion of the engine 111 side of the oil pan 126 and is different from the upper side of the engine 111 with respect to the vertical plane including the axis of the crank shaft 121. In addition, since the engine 110 is located at the position of lowering the center of gravity of the engine 110, the weight of each of the auxiliary devices 64, 66, 138, and 150 disposed on the auxiliary drive device 151 is increased. The weight eccentricity by the inclined structure of 111 is corrected, and the center of gravity of the engine 110 is lowered.

In the oil pan 126, a box-shaped wall surface 67 is formed near the side wall away from the oil pump 66 for engine lubrication, and the auxiliary drive shaft 151 penetrates the box-shaped wall surface 67, A driven sprocket 68 is mounted on the auxiliary mechanism drive shaft 151 in 67.

An extension 67a of the box-shaped wall surface 67 is formed in the oil pan 126 at the rear end of the engine 111 and at the portion of the box-shaped wall surface 67 near the transmission 115. A supporting member 71 for supporting the rotation shaft 70 of 69 is fixed to the upper end surface of the extension portion 67a.

An idle gear 69 is disposed at a position opposite to the eighth web 72 on the rear end portion of the crank shaft 121, and a driving sprocket 73 is provided on the rotation shaft 70 of the idle gear 69. It is fixed.

The driven and drive sprockets 68 and 73 are interconnected by a chain 74.

A power output gear 75 is disposed in a portion of the eighth web 72 of the crankshaft 121, and the gear is engaged with the idle gear 69 described above.

The output power of the engine is via the power output gear 75, and then through the auxiliary drive shaft 151, idle gear 69, drive sprocket (73), chain 74 and driven sprocket 68 Forwarded to 151.

Thus, the oil pump 64 for the automatic transmission, the oil pump 150 for the power steering, the water pump 138, and the oil pump 66 for engine lubrication are driven.

Reference numeral 76 in FIGS. 6 and 7 denotes an oil filter. In the engine device in the second embodiment, the auxiliary mechanism is simply arranged by using the space S formed adjacent to one end of the oil pan 126, and at the same time, the bias of the weight of the engine device 110 is such that It can be calibrated by the arrangement of the instrument.

Next, the engine device 210 according to the third embodiment of the present invention will be described next with reference to FIG.

The engine device 210 of the third embodiment is actually the same as the engine device 10 of the first embodiment, and the former is different from the latter mainly in the arrangement of the auxiliary mechanism.

In FIG. 8, the same reference numerals are assigned to the same parts in FIGS.

In contrast to the first embodiment, the air conditioner compressor 39 is actually located directly under the crankshaft 21 in the center of the entire engine unit, while in the third embodiment the air conditioner compressor 39 is also the engine body. It is arrange | positioned on the side surface of 11 so as to oppose the drive system 17.

For this reason, the alternator 37 and the water pump 38 are arrange | positioned above. That is, the alternator 37, the water pump 38, and the air conditioner compressor 39 are vertically arranged in this order from the top of the front side of the crankshaft 21.

The passage method of the drive belt 36 was changed according to the change of arrangement of the auxiliary mechanism.

In this embodiment, the weight of the front surface of the engine device is larger than that of the first embodiment, and the weight on the front surface of the engine device is more balanced by the weight of the drive system 17, although the center of gravity is higher than that of the first embodiment. It is becoming.

The engine device 310 according to the fourth embodiment of the present invention will now be described with reference to FIG.

The engine device 310 in the fourth embodiment is actually the same as the engine device 10 in the first embodiment, and the former is different from the latter in that the water pump 38 is mainly driven by the drive belt 36. Instead, the tensioning device 60 is disposed, and the positions of the alternator 37 and the air conditioner compressor 39 are different.

In FIG. 9, components that are the same as the reference numerals given in FIGS. 1 to 4 will be omitted here.

In the fourth embodiment, the air conditioner compressor 39 is disposed below the drive system 17, and the alternator 37 is disposed on the side of the crankshaft 21 opposite to the air conditioner compressor 39.

By arranging the alternator 37 and the compressor 39 at a long distance from each other, the vibration of the compressor 39 can be absorbed by the elasticity of the drive belt 36, and the drive belt 36 can be excessively subjected to excessive load. It is protected and the reliability of the drive belt 36 is improved.

On the effect of the tensioning device 60 supporting the rotation on the idler 40 between the crankshaft 21 and the compressor 39 and transmitting a tensile force to the drive belt 36 in the direction of the arrow downstream of the compressor 39. The vibration generated by the compressor 39 is effectively absorbed.

In this embodiment, the water pump 38 is driven by driving means for driving the oil pump 50 (see FIG. 2).

An engine apparatus 410 according to a fifth embodiment of the present invention will be described next with reference to FIG.

The engine device 410 in the fifth embodiment is practically the same as the engine device 310 in the fourth embodiment, and the former is different from the latter mainly in the structure and arrangement of the alternator.

That is, in this embodiment, the alternator 137 has a drive shaft 170 and a pulley shaft 171, and the pulley 137a is fixed to the pulley shaft 171.

Then, the drive belt 36 passes through the pulley 137a. The pulley shaft 171 is disposed on the side surface of the drive shaft 170 in a direction opposite to the crank shaft 21 and the compressor 39.

The pulley shaft 171 is fixed to the pulley shaft 171 and the drive shaft 170, respectively, and the diameter is connected to the drive shaft 170 by cone accelerator gears 172 and 173 rather than the pulley 137a.

With this arrangement, the distance between the alternator and the pulley of the crankshaft 21 is longer than that in the fourth embodiment, and thus the contact angle between the pulley and the drive belt 36 becomes large.

In addition, since the distance between the pulley of the alternator and the pulley of the compressor 39 becomes long, the vibration can be more effectively absorbed by the belt.

As an effect of the accelerator gears 172, 173, the drive shaft 170 rotates at a faster speed than that of the pulley shaft 171, so that the required speed of the alternator 137 is obtained.

An engine apparatus 510 according to the sixth embodiment of the present invention will be described next with reference to FIG.

The engine device 510 in this embodiment is very similar to the engine device 110 in the second embodiment, and therefore, the difference between them will be described here.

In this embodiment, the surge tank 206 is disposed adjacent to the lower block 205 that forms the edge of the cylinder block of the engine body 211 on the front of the engine body 211, and the surge tank 206 is disposed. An inlet manifold 207 that connects to each cylinder is curved upward and connected to the cylinder head 208.

An exhaust manifold 225 is connected to the cylinder head 208 from the rear.

A fuel injection valve 227 for injecting fuel from the top of the cylinder head 208 in the intake passage 226 is mounted to the cylinder head 208.

The intake manifold 207 connecting the surge tank 206 and the cylinder head 208 is bent upward, and the inlet manifold for intake manifold (207) is located in the middle of the intake manifold 207. The fuel injected from the fuel injection valve 227 mounted at the position moved toward the engine from 207 cannot flow to the surge tank 206.

In this embodiment, the fuel injection valve 227 is mounted on the cylinder head 208, but the fuel intake manifold 207 is positioned so that the fuel injection valve 227 is located on the side of the final shop near the engine body 211. It may be attached to.

Reference numeral 230 in FIG. 11 denotes a radiator.

In this embodiment, since the surge tank 206 is disposed below the front surface of the engine body 211, and the intake manifold 207 is curved upward from the surge tank 206, the engine cover 208 is a radiator. Determined by the height of 230, the head cover 229 is not limited by the intake cylinder, and becomes relatively low as shown in FIG.

In addition, since the auxiliary mechanism is disposed on the side of the oil pan 126, in the longitudinal direction of the vehicle body, the size of the engine device 510 becomes small.

Claims (13)

An engine device including the engine bodies 11, 111, and 211 and the transmissions 15 and 115 is a transmission 15 disposed at the rear of the engine bodies 11, 111, and 211. And 115 are mounted horizontally on the vehicle body, and the engine bodies 11, 111, 211 and transmissions 15, 115 are housed in a single engine housing 18, 118. The oil pans 26 and 126 common to the engine bodies 11, 111 and 211 and the transmissions 15 and 115 are the engine bodies 11, 111 and 211. It is attached to the lower part of the engine housings 18 and 118 below the transmission 15 and 115, and the length of the oil pans 26 and 126 in the width direction of a vehicle body is the engine housing 18. Shorter than (118), and the auxiliary mechanism is disposed in one space of the oil pan (26), 126 under the engine housing (18), (118). 2. The engine apparatus of a vehicle according to claim 1, wherein the differential devices (16, 116) are arranged on the rear of the engine bodies (11), (111), (211). 2. The engine apparatus of a vehicle according to claim 1, wherein the engine bodies (11), (111), and (211) are inclined rearward, and the oil pans (26) and (126) are actually triangular in cross section. 2. The auxiliary mechanism drive shafts 51, 151 pass through the oil pans 26, 126 in the width direction of the vehicle body, and the auxiliary mechanisms each of the auxiliary mechanism drive shafts 51, 151. Engine device of the vehicle, characterized in that connected to the end. The auxiliary drive shaft (51), (151) passes through the box-shaped wall surface (67) formed near one wall surface of the oil pans (26), (126), and the driven sprocket (68) is a box. Of the vehicle, characterized in that it is mounted to the auxiliary drive shafts (51) (151) in the wall (67), and the driven sprocket (68) is connected to the crank shafts (21), (121) of the drive sprocket (73). Engine unit. The oil pump 64 for the automatic transmission and the oil pumps 50, 150 for the power steering are connected to one end of the auxiliary drive shafts 51, 51 in series with each other. , The water pump (38), (138) is connected to the other end of the auxiliary drive shaft (51), (151). The main housing (19) according to claim 4, wherein the engine housings (18) and (118) extend along the axis of the crankshaft (21) and (121) of the engine bodies (11), (111), and (211). ), 119 and the lower housing 20, 120 is linearly divided into the oil pans 26, 126 are mounted on the lower housing 20, 120, the crankshaft The bearing parts 27 and 127 for supporting the 21 and 121 are formed in the divided surfaces of the main housings 19 and 119 and the lower housings 20 and 120, and drive shafts ( 25, 129 bearings 29, 129 for supporting the crankshaft 21, 121 is the main housing 19 at the rear of the bearings 27, 127 for supporting the crankshaft 21, 121 , 119 and the lower housing (20), the engine device of the vehicle, characterized in that formed on the divided surface. The surge tank 206 of the intake cylinder is disposed in front of the engine bodies 11, 111, and 211 near the edge of the engine block, and the surge tank 206 is connected to the cylinder. The intake manifold 207 for connecting to the head 208 is bent upward from the surge tank 206 and connected to the cylinder head 208, and the exhaust manifold 225 is connected to the engine body 11, 111. And (211) are connected to the cylinder head (208) from the rear of the engine device of the vehicle. The main housing (19) according to claim 1, wherein the engine housings (18) and (118) extend along the axis of the crankshaft (21) and (121) of the engine bodies (11), (111), and (211). ), 119 and the lower housing 20, 120 is linearly divided, and the oil pans 26, 126 are mounted on the lower housing 20, 120 and the crankshaft ( The bearing parts 27 and 127 for supporting the 21 and 121 are formed on the divided surfaces of the main housings 19 and 119 and the lower housings 20 and 120, and the drive shaft 25 ), (125) bearings 29, 129 for supporting the crankshaft 21, 121, the main housing (19), in the rear of the bearings (27, 127) for supporting (119) and the engine unit of the vehicle, characterized in that formed on the divided surface of the lower housing (20, 120). The surge tank 206 of the intake cylinder is disposed in front of the engine bodies 11, 111, and 211 near the edge of the engine block, and the surge tank 206 is connected to the cylinder. The intake manifold 207 for connecting to the head 208 is bent upward from the surge tank 206 and connected to the cylinder head 208, and the exhaust manifold 225 is connected to the engine body 11, 111. And (211) are connected to the cylinder head (208) from the rear of the engine device of the vehicle. An alternator (37), (137) is disposed above the front surface of the engine housing (18), (118), and the water pump (38) (138) is the engine housing (18) (118). Air conditioner compressor (39) is disposed in the lower center of the engine housing (18), (118), alternator (37), (137) and water pump (38), (138). And the compressor 39 has pulleys 37a, 38a and 39a, respectively, and a drive belt 36 and an engine body 11 passing through the pulleys 37a, 38a and 39a. A vehicle engine apparatus characterized by being driven by crank pulleys (21a) and (121a) fixed to crank shafts (21) and (121) of (111) and (211). According to claim 1, wherein the drive shafts (25), (125) to the transmission (15), (115) in parallel with the crank shafts (21), (121) of the engine body (11), (111), (211) The main mechanisms of the engine bodies 11, 111, and 211 are arranged on a line through which the crank shafts 21, 121 and the drive shafts 25, 125 pass, and the auxiliary mechanism An engine apparatus of a vehicle, characterized in that it is disposed below the main mechanism of the engine body (11), (111), (211) and in front of the engine body (11), (111), (211). The portion of the engine housing (18) (118) in which the transmissions (15) and (115) are accommodated extends in the width direction of the vehicle body through the one end edges of the oil pans (26) and (126). An engine apparatus of a vehicle, characterized in that.