JPH0680029A - Rear wheel drive vehicle - Google Patents

Abstract

PURPOSE:To provide a rear wheel drive vehicle by which dead space can be used effectively. CONSTITUTION:A driving device of a rear wheel drive vehicle has an engine E arranged between a rear wheel driving shaft A and a rear seat 3 of a vehicle body 10. A wheel house of this rear wheel drive vehicle is extended frontward, and is extended to a bulk head 4 on the reverse side of the rear seat 3. An air cleaner 11 being an auxiliary device related to the driving device, a common air intake pipe 13 and so on are arranged in this wheel house.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rear-wheel drive vehicle,
More specifically, the present invention relates to a midship type rear wheel drive vehicle in which an engine is arranged in a seat rear area between front and rear axles.

[0002]

2. Description of the Related Art Japanese Unexamined Patent Publication No. 60-85027 and French Patent No. 1,518,295 disclose examples of midship vehicles. In these midship vehicles, the drive system such as the engine is arranged between the front and rear axles and at the rear of the seat, so that the dynamic performance of the vehicle can be improved, and at the same time, the so-called auburn hang portion (front and rear axles from the front and rear axles respectively) Alternatively, there is an advantage that the length of the vehicle body portion protruding rearward can be shortened. As a result, the degree of freedom in designing the front and rear of the vehicle is increased, the aerodynamic characteristics of the vehicle body can be improved, and the fuel consumption of the vehicle can be improved.

In the midship vehicle disclosed in Japanese Patent Laid-Open No. 60-85027, the engine is mounted in an upright posture with the axis of the cylinder bore thereof oriented in the vertical direction.
The midship vehicle of No. 518,295 is installed in a horizontal position with the axis of the cylinder bore facing forward and backward.

[0004]

Since the midship vehicle of the type described above has a structure in which the engine is arranged between the front and rear axles and at the rear of the seat, an important problem is how to secure a sufficient luggage compartment space. Become. That is, unlike a normal front engine vehicle in which the entire rear space of the seat can be used as a luggage space, this type of midship vehicle has a drive system such as an engine in the rear region of the seat, and thus can be used as a luggage space. The space behind the seat is restricted, making it difficult to secure a sufficient luggage compartment space.

On the other hand, in a midship vehicle of the type described above, when the engine is mounted in a collapsed state in which the axis of the cylinder bore is substantially horizontal, the distance between the rear wheel axle and the rear seat rear surface (bulkhead) is inevitable. Increase to. This is because the engine is mounted between the rear axle and the back of the seat in a laid-down state with the height between the cylinder head and the crank chamber oriented in the front-rear direction of the vehicle body. Compared to a midship vehicle of a type in which the rear axle and the back of the seat are mounted in a standing state in the up-and-down direction of the vehicle body, the distance between the rear wheel axle and the back of the rear seat must be large. Therefore, the space between the rear wheel axle and the seat back surface (bulkhead) becomes large.

Of this space, the vicinity of the center in the vehicle width direction, that is, the area inside the left and right wheel houses can be used as a luggage compartment. However, since the wheel house projects inward in the vehicle body on both sides in the vehicle width direction that sandwich the inner region of the space, it is difficult to use the space near the wheel house as a luggage compartment. , This part was easy to become a dead space.

The present invention has been made in view of the above problems, and is premised on a midship vehicle having a structure in which an engine is arranged between the front and rear axles and behind the seat as described above, the drive originally arranged in the engine room. It is an object of the present invention to provide a rear-wheel drive vehicle that can effectively utilize the dead space by disposing an auxiliary device related to the device in the vicinity of the wheel that is likely to become the dead space as described above.

[0008]

In order to achieve the above object, in the present invention, the axis of the cylinder bore is located in a substantially horizontal plane between the rear wheel drive shaft and the seat located in front of the rear wheel drive shaft. Assuming that a rear-wheel drive vehicle is provided with a drive device having an engine mounted in a laid-down posture, an auxiliary device related to the drive device is arranged in a wheel house in which rear wheels driven by a rear-wheel drive shaft are arranged. It is arranged in the space between the rear wheel and the vehicle body.

Further, according to the present invention, the wheel house has an extension portion extending forward, and an auxiliary device associated with the engine is arranged in the extension portion. Further, in the present invention, the extension portion of the wheel house is extended to the vicinity of the bulkhead of the seat. Further, in the present invention, a member of the intake pipe system of the engine, a member of the exhaust pipe system of the engine, and an engine auxiliary machine are arranged as auxiliary devices related to the drive device.

Further, in the present invention, the engine accessory is hydraulically driven by the hydraulic pump driven by the engine.

[0011]

According to the present invention having the above-mentioned structure, since the auxiliary device related to the drive device originally arranged in the engine room is arranged in the wheel house, the engine room can be reduced and a sufficient luggage compartment can be obtained. It becomes possible to secure a space.

[0012]

Embodiments of the present invention will now be described in detail with reference to the drawings. In this specification, the front side or the front side and the rear side or the rear side refer to the front side or the front side and the rear side or the rear side in the front-rear direction of the vehicle, respectively, and the inner side and the outer side are the inner side and the width direction of the vehicle, respectively. Refers to the outside.

Further, according to the present invention, the axis of the cylinder bore is located in or near the horizontal plane in the engine room located between the rear wheel drive shaft and the rear seat located in front of the rear wheel drive shaft. It is premised on a type of midship vehicle with an engine mounted in such a lying posture.
In the embodiment described later, the engine E is arranged so as to be offset to the left of the center line of the vehicle body 10 in the front-rear direction, and the upper space of the engine room is a luggage compartment.

1 and 2 show a wheel house of a midship vehicle of the type described above, which is the premise of all the embodiments described below. FIG. 1 is a perspective view showing the vicinity of a wheel house (left rear wheel) 1 in a state where auxiliary devices related to a drive device such as an intake pipe are not arranged, and FIG. 2 is a II-II in FIG.
It is sectional drawing in a line. As is apparent from FIG. 1, the upper side surface of the wheel house 1 extends forward from the upper portion of the suspension tower 2 and is mounted on the back side of the rear seat 3 to separate the cabin space from the rear area thereof. End with 4. The bulkhead 4 forms the front side surface of the wheel house 1. The inner side wall of the wheel house 1 is formed by the wheel house inner 5. On the other hand, the outer side wall of the wheel house 1 is constituted by a rear pillar inner 7 attached inside the rear fender 6. The wheel house inner 5 and the rear pillar inner 7 extend from the suspension tower 2 to the bulkhead 4 substantially in parallel. As a result, the wheel house 1 has the bulkhead 4
Even after the rear tire T is attached to the rear wheel drive shaft A, the space 1'is formed on the front side of the rear tire T.

In order to facilitate maintenance such as tire replacement, a portion corresponding to the rear wheel tire T on the outer side wall of the wheel house 1 is cut out in a semicircular shape as in a general vehicle. A rear side frame 8 extends in the front-rear direction of the vehicle body 10 below the wheel house inner 5 forming the inner side wall of the wheel house 1. The rear side frame 8 linearly extends below the rear seat 3 to the rear of the vehicle body 10 and rises upward behind the rear seat 3. Furthermore, it passes through the inside of the wheel house 1 and extends to the rear end portion of the vehicle body.

Further, on the upper side surface of the space portion 1'which is an extension portion of the wheel house 1, there is formed a vent hole 9 for communicating the external space with the inside of the wheel house 1. This vent 9
Thus, the engine room is in fluid communication with the external space through the wheel house 1. The air vent 9 serves to prevent heat of the engine room formed below the luggage compartment from escaping to the outside as indicated by an arrow in FIG. 2 and preventing heat from being accumulated in the luggage compartment. In addition, it also functions as a service hole for an auxiliary device associated with the drive device arranged in the space 1'which is an extension of the wheel house 1.

Next, a rear-wheel drive vehicle according to the first embodiment of the present invention will be described with reference to FIGS. In the first embodiment,
In the space 1 ′ on the front side of the rear tire T, an intake system member is arranged as an auxiliary device related to the drive device.
FIG. 3 is a vertical cross-sectional view of the vicinity of the wheel house 1 showing a state in which an intake system member such as the air cleaner 11 is arranged in the space 1 ′ on the tire front side, and FIG. 4 is a cross-sectional view thereof.
As shown in FIGS. 3 and 4, an air cleaner 11, an air guide pipe 12 for introducing outside air into the air cleaner 11, and a common intake pipe 13 for guiding the air passing through the air cleaner 11 to the engine are arranged in the space 1 ′. Has been done. As is clear from FIG. 4, a passage 14 that penetrates the rear fender 6 and the rear pillar inner 7 is formed. The outer end of the passage 14 is open to the outside of the vehicle body 10, and the inner end is connected to the air guide pipe 12. As a result, outside air is introduced into the air cleaner 11 through the passage 14. On the other hand, the common intake pipe 13 extends downward from the air cleaner 11, and further,
It bends inward so as to pass under the rear side frame 8 and extends to the engine compartment. In the engine room, the common intake pipe 13 branches into the independent intake pipe 14 and reaches the engine E. As shown in FIG. 4, the air cleaner 12
Are mounted in the wheel house 1 by being mounted and fixed on brackets 19 whose both ends are fixed to the rear pillar inner 7 and the wheel house inner 5, respectively. Incidentally, D indicates a spring / damper assembly.

The drawings after FIG. 5 show other embodiments of the present invention, and in the description of these embodiments, the same elements as those in the first embodiment are designated by the same reference numerals and the description thereof is omitted. The characteristic parts of these embodiments will be described below. Next, a rear wheel drive vehicle according to a second embodiment of the present invention will be described with reference to FIGS. In the second embodiment,
In the space 1'on the front side of the rear tire T, an exhaust system member is arranged as an auxiliary device related to the drive device.
FIG. 5 shows the wheel house 1 and its vicinity showing a state in which exhaust system members such as the first and second silencers (for example, pre-silencer and main silencer) 21 and 22 are arranged in the space 1 ′ on the front side of the tire T. FIG. 6 is a vertical sectional view of FIG. 6, and FIG. 6 is a horizontal sectional view thereof. As shown in FIGS. 5 and 6, the space portion 1 ′ is an auxiliary device related to the driving device,
Silencer 21, a second silencer 22, an exhaust pipe 23 connecting the first and second silencers 21, 22, an exhaust pipe 2 that guides exhaust gas from the engine to the first silencer 21.
4, an exhaust pipe 25 and the like for leading the exhaust from the second silencer 22 to the outside of the vehicle are housed.

The first silencer 21 is installed in the space 1'inclined toward the rear of the vehicle body 10 in an inverted state with the upstream end portion facing downward and the downstream end portion facing upward. An exhaust pipe 24 that guides the exhaust gas that has passed through a catalyst (not shown) to the first silencer 21 is connected to the upstream end of the first silencer 21. Second silencer 22
Is disposed between the first silencer 21 and the rear wheel tire T in a state substantially parallel to the first silencer 21. The second silencer 22 is arranged in an upright state with the upstream end thereof facing upward and the downstream side thereof facing downward, and the upstream end of the second silencer 22 has a first silencer 21.
Is connected to the downstream end of the exhaust pipe 23. Further, the exhaust pipe 2 is provided at the downstream end of the second silencer 22.
The exhaust gas passing through the second silencer 22 is discharged to the outside of the vehicle.

The first and second silencers 21, 22 may be housed and fixed in the space 1'by any method, but in this embodiment, a fixing tool is used.
That is, as shown in FIG. 6, one end of the fixtures 21a and 21b is fixed to the upper part of the first silencer 21, and the fixtures 21a and 21b are fixed.
By fixing the other ends of a and 21b to the rear pillar inner 7 and the wheel house inner 5, respectively, the first
The silencer 21 is fixed in the space 1 '. The second silencer 22 is also fixed in the space 1'in a similar manner. In the rear-wheel drive vehicle with this arrangement, since the silencer, which is arranged on the rear side (rear overhang portion) of the rear-wheel drive shaft, is housed in the space portion 1 ′ in the extension portion of the wheel house 1, the rear overdrive is performed. It is possible to shorten the hang.

As a modification of the second embodiment, as shown in FIG.
Through the first and second silencers 2 as shown in FIG.
1, 22 as first and second catalysts 26, 27 (for example, direct coupling catalysts, underfoot catalysts, etc.) and exhaust pipes 28, 29 connected thereto as auxiliary devices related to the drive device. 30 may be housed in the space 1 ′ in the wheel house 1. The first and second catalysts 26 and 27 are substantially parallel to each other as in the case of the silencers 21 and 22 of the second embodiment described above.
It is arranged in the space 1 '. In this case, the silencer 31 is arranged in the rear overhang portion.

The first and second catalysts 26, 27 may be housed / fixed in the space 1'by any method, but in this embodiment, in the case of the second embodiment described above. Similarly, a fixture is used. That is, as shown in FIG. 8, the ends of the fixtures 26a, 26b are fixed to the upper part of the first catalyst 26, and the other ends of the fixtures 21a, 21b are respectively formed as the rear pillar inner 7 and the wheel house inner 5. By fixing, the first catalyst 26 is fixed in the space 1 '. The second catalyst 27 is also fixed in the space 1'in the same manner.

In the rear-wheel drive vehicle having this arrangement, the catalysts 26 and 27, which are arranged above or below the engine which is laid down in the engine room, are installed in the space 1'in the extension of the wheel house 1. Since it is housed in the engine room, the engine room can be made thin in the vertical direction, and as a result, the cargo room formed above the engine room can be made large (deep).

Next, a rear-wheel drive vehicle according to a third embodiment of the present invention will be described with reference to FIGS. In this embodiment, the battery 32 is used as an auxiliary device related to the drive device.
Is housed in the space 1'of the extension of the wheel house 1.
It is fixed. FIG. 9 is a vertical cross-sectional view of the vicinity of the wheel house 1 of a rear-wheel drive vehicle in which the battery 32 is arranged in the space 1 ′ on the front side of the tire T, and FIG. 10 is a cross-sectional view thereof. The battery 32 may be housed / fixed in the space 1 ′ by any method, but in this embodiment, the bracket 33 is used. That is, as shown in FIG. 10, the battery 32 is mounted on the bracket 33 having both ends fixed to the rear pillar inner 7 and the wheel house inner 5.
The battery 32 is fixed in the space 1 ′ by placing and fixing.

Further, a rear wheel drive vehicle according to a fourth embodiment of the present invention will be described with reference to FIGS. In this embodiment, an air conditioner pump 41, an alternator 42, and a power steering pump 43 are arranged in a space 1'which is an extension of the wheel house 1 as an auxiliary device related to a drive device. 11 is a vertical cross-sectional view of the vicinity of the wheel house 1 showing a state in which the above-mentioned accessories are arranged in the space 1'on the front side of the tire T, and FIG. 10 is a cross-sectional view thereof. The engine accessories described above are mounted on the upper bracket 48 or the lower bracket 49 mounted on the engine E toward the outside to be mounted on the engine, and are arranged in the space 1 '. More specifically, the air conditioner pump 41 is fixed to the upper bracket 48 attached to the upper side of the engine E, and is arranged so as to be located outside the cylinder head portion H of the engine E. Also, the alternator 42 is
The air conditioner pump 41 is fixed to the upper bracket 48 and is located above and behind the air conditioner pump 41. The power steering pump 43 is fixed to a lower bracket 49 attached to the lower side of the engine, and is arranged below the alternator 42. The above-mentioned accessories are arranged at a distance from the engine, and pulleys 41a, 42 for transmitting the driving force of the engine to the accessories are provided in the space between the engine and the accessories.
a, 43a, 44a, 46a, endless belt 45,
A power transmission mechanism such as 47 is arranged.

An output pulley 44a is attached to the output shaft 44 of the engine E. On the other hand, one end is rotatably attached to the engine E, and the other end is attached between the engine E and the air conditioner pump 41 to a rotary shaft 46 integrally connected to the input shaft of the air conditioner pump 41. A relay pulley 46a is attached to the end of the rotating shaft 46 on the engine E side, and a relay pulley 41a is attached to the end of the air conditioner pump 41 side. An alternator pulley 42a and a power steering pulley 43a are attached to the input shafts of the alternator 42 and the power steering pump 43, respectively. The output pulley 44a and the relay pulley 4
An endless belt 45 is wound around 6a.
Further, the relay pulley 41a and the alternator pulley 42a
An endless belt 47 is stretched around the power steering pulley 43. As a result, the rotation of the output shaft 44 of the engine E is transmitted to each of the air conditioner pump 41, the alternator 42, and the power steering pump 43 by the transmission mechanism.

Next, a rear wheel drive vehicle according to a fifth embodiment of the present invention will be described with reference to FIGS. 13 to 14. In this embodiment, accessories such as the air conditioner pump 41 are arranged in a space 1'which is an extension of the wheel house 1 as an auxiliary device related to the drive device. It is common to the rear-wheel drive vehicle of the embodiment. However, in the fourth embodiment, the accessories are engine mounts, whereas in the rear-wheel drive vehicle of the fifth embodiment, the accessories are vehicle mounts.
Different from the embodiment. The details will be described below.

FIG. 13 is a longitudinal sectional view of the arrangement structure of an auxiliary device relating to the drive device of the rear-wheel drive vehicle of the fifth embodiment, and FIG. 14 is a transverse cross-sectional view. In the present embodiment, two vehicle body side brackets are provided on the outer surface of the rear side frame 8 that extends below the outside of the rear seat 3 to the rear of the vehicle body 10, bends upward and inward near the rear end of the rear seat, and then extends rearward again. 54a and 54b are attached.

As is apparent from FIG. 13, the first bracket 54a is fixed to the rear side frame 8 near the rear end of the rear seat 3, and the second bracket 54b is attached to the rear side near the front part of the rear tire T. It is fixed to the frame 8. Further, the first and second brackets 54a, 5
A stay 55 having a substantially M-shaped cross section is attached by connecting 4b. The power steering pump 53 is attached to the lower side of the first bent portion of the stay 55. The power steering pump 53 is supported by a stopper 56 from below. Also, the second of the stay 55
Below the bent part of the
1 is attached. The air conditioner pump 51 is supported by a stopper 57 from below. Further, an alternator 52 is directly attached to the rear side frame 8 and arranged on the front side of the power steering pump 53.

Further, in the cylinder head H of the engine E,
A rotating shaft 58 extending outward in the vehicle width direction is rotatably attached. An input pulley 58a is attached to an end of the rotary shaft 58 on the engine E side, that is, a base end, and a first output pulley 58b and a second output pulley 58c are attached to the other end. ing. An output pulley 59a is attached to the output shaft 59 of the engine E, and an endless belt 60 is stretched around the output pulley 59a and the input pulley 58a on the rotary shaft 58.

Further, an endless belt 71 is attached to the first output pulley 58b, the power steering pump pulley 53a attached to the input shaft of the power steering pump 53, and the alternator pulley 52a attached to the input shaft of the alternator 52. It has been passed over. on the other hand,
An endless belt 62 is stretched over the second output pulley 58c and the air conditioner pump pulley 51a attached to the input shaft of the air conditioner pump 51. As a result, the output shaft 59 of the engine E
Is transmitted to the air conditioner pump 51, the alternator 52, and the power steering pump 52 by the transmission mechanism, and drives them.

Finally, a rear wheel drive vehicle according to a sixth embodiment of the present invention will be described with reference to FIGS. In this sixth embodiment, auxiliary machinery is mounted on the vehicle body and the wheel house 1
In the point that it is arranged in the space portion 1 ′ which is an extension portion of
The same as the embodiment. However, in the sixth embodiment, the accessories are driven by the hydraulic pump, which is the difference from the fifth embodiment. The difference will be mainly described below.

FIG. 15 is a vertical cross-sectional view of the left rear wheel of the vehicle body 10 showing the arrangement structure of an auxiliary device related to the drive device in the rear-wheel drive vehicle of the sixth embodiment, and FIG. 16 is a cross-sectional view thereof. Is. The engine E is in the laid-down state in which the cylinder head H faces the front direction of the vehicle body 10 (the front direction of the vehicle) as in all the above-described embodiments, and the front and rear of the vehicle body 10 are arranged between the rear wheel drive shaft and the rear seats. It is mounted on the left side of the center line of the direction. A transmission M is arranged on the center side of the vehicle body 10 of the engine E.

An output shaft 61 of the engine E extends from the engine E outward in the width direction of the vehicle body 10, and an output pulley 61a is attached to the tip of the output shaft 61. Further, on the outer side in the width direction of the vehicle body 10 on the cylinder head H side of the engine E,
A hydraulic pump 62 is attached. An input shaft 62a of the hydraulic pump 62 extends outward from the hydraulic pump 62 in the width direction of the vehicle body 10, and an input pulley 62b is attached to the tip thereof. The input pulley 62b is aligned with the output pulley 61a on the engine output shaft 61, and both pulleys 61a,
An endless belt 63 is stretched between 62b. As a result, the rotation of the engine output shaft 61 drives the hydraulic pump 62.

A first bracket 64a is mounted outwardly in the width direction of the vehicle body 10 near the midpoint between the rear wheel drive shaft of the left rear side frame 8 and the bulkhead 4, and the rear seat of the rear side frame 8 is mounted. The second bracket 64b is attached to the lower bent portion outward in the width direction of the vehicle body 10. Further, a plate-shaped stay 64c connects the brackets 64a and 64b. That is, one end of the stay 64c is attached to the first bracket 64a, and the other end is attached to the second bracket 64b.

A hydraulic motor 65 is attached to the stay 64c.
An air conditioner pump 66 and an alternator 68 are attached. The hydraulic motor 65 is fixed to the lower side surface of the stay 64c outside the width direction of the vehicle body 10 of the cylinder head H of the engine E. The air conditioner pump 66 is fixed to the upper side surface of the stay 64c on the front side of the hydraulic motor 65. Further, above the hydraulic motor 65 and the air conditioner pump 66, an alternator 68 is fixed to the upper side surface of the stay 64c. As a result, the air conditioner pump 65 and the alternator 68 are mounted on the vehicle body.

The hydraulic motor 65 has an output shaft 65a extending outward, and the air conditioner pump 66 and the alternator 68 also have input shafts 66a 68a extending outward. At the end of the output shaft 65a of the hydraulic motor 65, the hydraulic motor pulley 65b is provided.
Is the input shaft 66a of the air conditioner pump 66
Air conditioner pump pulley 66b at the end of
However, an alternator pulley 68b is attached to the end of the input shaft 68a of the alternator 68, respectively. These pulleys 65b, 66b, 68b are arranged in the same plane, and an endless belt 69 is stretched around them. As a result, the hydraulic motor 65 drives the air conditioner pump 66 and the alternator 68.

A hydraulic pipe system 67 for supplying hydraulic pressure to the hydraulic motor 65 and driving it is connected to the hydraulic pump 62 described above. The hydraulic pipe system 67 includes an oil cooler 67 for cooling oil, which is connected to each other.
c and an oil reservoir tank 67d. The oil cooler 67c is arranged so as to extend in the width direction of the vehicle body 10 just below the hip point of the rear seat. The oil reservoir tank 67d is fixed to the bulkhead 4 and the inner surface of the rear side frame 8 above the oil cooler 67c. The hydraulic pipe system 67 further includes a hydraulic supply pipe 67a that connects the hydraulic pump 62 and the hydraulic motor 65, a hydraulic motor 65, and an oil cooler 67c.
And a perfusion pipe 67 that connects the oil reservoir tank 67d and the hydraulic pump 62.
including e and. Therefore, the oil pressurized by the hydraulic pump 62 is supplied to the hydraulic pump 65 by the hydraulic supply pipe 67a to drive the hydraulic pump 65, and further passes through the hydraulic pipe 67b, the oil cooler 67c, the oil reservoir tank 67d, and the irrigation pipe 67e. The hydraulic pump 62 is perfused.

Therefore, the rotation of the output shaft of the engine E hydraulically drives the air conditioner pump 65 and the alternator 68. It should be noted that the present invention is not limited to the above-described embodiments, and various changes and modifications can be made within the technical scope described in the claims.

[0040]

According to the present invention described in detail above, since the auxiliary device related to the drive device is arranged in the wheel house, it is possible to effectively use the portion that easily forms the dead space and reduce the engine room. It becomes possible to take a large luggage compartment.

[Brief description of drawings]

FIG. 1 is a perspective view of a wheel house without auxiliary devices associated with a drive unit.

FIG. 2 is a sectional view taken along line II-II in FIG.

FIG. 3 is a longitudinal sectional view showing the arrangement structure of the first embodiment of the present invention.

FIG. 4 is a sectional view taken along line IX-IX in FIG.

FIG. 5 is a longitudinal sectional view showing the arrangement structure of the second embodiment of the present invention.

6 is a sectional view taken along line XI-XI in FIG.

FIG. 7 is a vertical sectional view showing an arrangement structure of a modified example of the second embodiment.

8 is a sectional view taken along line XIII-XIII in FIG. 7.

FIG. 9 is a vertical sectional view showing an arrangement structure of a third embodiment of the present invention.

10 is a cross-sectional view taken along line XX of FIG.

FIG. 11 is a vertical sectional view showing the arrangement structure of the fourth embodiment of the present invention.

FIG. 12 is a sectional view taken along line XII-XII in FIG. 11.

FIG. 13 is a vertical sectional view showing the arrangement structure of the fifth embodiment of the present invention.

FIG. 14 is a plan view of the fifth embodiment.

FIG. 15 is a vertical sectional view showing an arrangement structure of a sixth embodiment of the present invention.

FIG. 16 is a plan view of the sixth embodiment.

[Explanation of symbols]

 A Rear wheel drive shaft D Spring / damper assembly E Engine H Cylinder head M Transmission T Tire 1 Wheel house 1'Space 2 Suspension tower 3 Rear seat 4 Bulkhead 5 Wheel house inner 6 Rear fender 7 Rear pillar inner 8 Rear side frame 9 Ventilation Mouth 10 Car body 11 Air cleaner 12 Air guide tube 13 Air guide tube 21 First silencer 22 Second silencer 26 First catalyst 27 Second catalyst 32 Battery 41 Air conditioner pump 42 Alternator 43 Power steering pump

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification code Office reference number FI technical display location F02B 67/00 F 7541-3G 67/08 7541-3G

Claims (8)

[Claims] 1. A drive unit having an engine mounted between the rear wheel drive shaft and a seat located in front of the rear wheel drive shaft in a laid-down posture such that the axis of the cylinder bore is located in a substantially horizontal plane. In a rear-wheel drive vehicle including: a drive device, an auxiliary device related to the drive device is arranged in a space between the rear wheel and a vehicle body in a wheel house in which the rear wheel driven by the drive shaft is arranged. A characteristic rear-wheel drive vehicle. 2. The wheel house has an extension part extending forward, and an auxiliary device related to the engine is arranged in the extension part.
Rear-wheel drive vehicle described in. 3. The rear wheel drive vehicle according to claim 2, wherein an extension portion of the wheel house extends to the vicinity of the bulkhead of the seat. 4. The rear-wheel drive vehicle according to claim 1, wherein the auxiliary device related to the drive device is a member of an intake pipe system of the engine. 5. The rear-wheel drive vehicle according to claim 1, wherein the auxiliary device related to the drive device is a member of an exhaust pipe system of the engine. 6. The rear-wheel drive vehicle according to claim 1, wherein the auxiliary device related to the drive device is an engine auxiliary machine. 7. The rear-wheel drive vehicle according to claim 6, wherein the engine accessory is hydraulically driven by a hydraulic pump driven by an engine. 8. The rear-wheel drive vehicle according to claim 7, wherein the hydraulic pump is attached to an engine, and the engine accessory is hydraulically driven by the hydraulic pump.