JP2539797Y2 - Front midship car - Google Patents

Description

[Detailed description of the invention] (Industrial application field) This invention relates to a front midship car in which an engine is mounted behind a front axle.

(Prior Art) (Industrial Application Field) Various forms of passenger cars have been proposed and put into practical use, and have characteristics such as mobility and livability. Among them, a passenger car that is called a front midship car and has an engine mounted between the axles has the feature that stable mobility (steerability) can be obtained because the center of gravity of the car can be placed between the axles. ing. Conventionally, what is called a front midship car,
This is a so-called front engine / front drive system in which the center of the engine is positioned behind the front axle to drive the front axle.

(Problems to be solved by the invention) The front midship car has an engine and accessories attached to it near the front axle. In order to obtain stable steering characteristics, it is desirable that the center of gravity of the vehicle be located between the front axle and the rear axle as much as possible. The problem of having to widen comes up. In order to improve the livability while suppressing the overall length of the vehicle, a two-seater cabin structure has to be adopted, and four-seater and five-seater types cannot be used. You will be regulated. In order to increase the indoor length, which is the most important factor for livability, under certain vehicle width regulations, it is necessary to rely on the extension of the wheel base. On the other hand, from a styling point of view, placing a power plant such as an engine on the front axle would cause the engine hood to be at a high position, causing the wedge
There is a problem that a shape type body structure cannot be adopted.

Therefore, the present invention aims to provide a front midship car that emphasizes styling while improving comfort and mobility.

(Means for Solving the Problems) In the front midship car of the present invention, a back bone is disposed at a position behind the front axle and below the center front end of the vehicle interior, and the inside of the back bone is provided. The power plant of the vertical engine is stored in the power plant, and the master back, alternator, and cooler / compressor driven by the engine are separated from the engine body and in front of the power plant and on the front axle or behind the front axle. It is characterized by being arranged in.

(Operation) The power plant is stored and operated in the back bone behind the front axle, and can cope with any of front wheel drive, rear wheel drive and four wheel drive. The engine accessories are arranged at a position in front of the power plant away from the engine main body, and are operated by a driving force of the engine or an electric motor.

Hereinafter, the present invention will be described in detail based on the illustrated embodiment.

1 and 2, reference numeral 1 denotes a vertical engine, reference numeral 2 denotes a front wheel, reference numeral 3 denotes a rear wheel, and reference numeral 4 denotes a back bone. Vertical engine 1
The power plant 1a, such as an engine body and a clutch and a transmission attached thereto, is disposed at a position behind the axles of the front wheels 2,2. More specifically, the power plant 1a is stored inside the backbone 4. A rear drive shaft 6 is connected to a center differential gear box 5 of the power plant 1a. This shaft 6 is connected to a rear drive shaft 8 near the center bearing 7. The shaft 8 is connected to a rear differential gear box 9 that drives the rear wheels 3. The front wheel 2 and the rear wheel 3 are suspended by, for example, a multi-link suspension. A front drive shaft 10 is connected between the center differential gear box 5 and a front differential gear box 11 for driving the front wheels 2. The exhaust port 12 of the engine 1 includes an exhaust pipe 13, an exhaust gas after-treatment device 14,
It is connected to a muffler 16 via an exhaust pipe 15. In FIG. 1, reference numeral 18 denotes a fuel tank, and reference numeral 19 denotes a filler neck. The fuel pipe (not shown) is connected to the engine 1 through the back bone 4. Rear drive shafts 6,8 and exhaust pipes 13,14
Is also passed through the back bone 4.

The steering wheel 20 is a steering gear
Connected to box 22. In FIG. 2, reference numeral 21 denotes a master back, 23 denotes an accelerator pedal, and 24 denotes an accelerator pedal.
Indicates a brake pedal. The vehicle shown is a right-hand drive vehicle equipped with an automatic transmission, and when a manual transmission is provided, a clutch pedal is provided. An auxiliary drive shaft 25 extending forward from the engine 1 and connected to the crankshaft includes a cooler compressor 26, as shown in FIG.
An alternator 27 is rotationally connected via a rotation transmission means such as a belt. The fan 29 of the radiator 30 is also driven by the accessory drive shaft 25. As described above, most of the engine accessories driven by the engine main body are arranged in front of the engine main body and at a position away from the engine behind the front axle. By separating the accessories from the engine 1, the vertical engine is disposed so as to be diffused in the vehicle longitudinal direction and the width direction as a whole, so that the length of the top of the engine body can be shortened and the accessories The height of the storage space can be reduced. Therefore, it is possible to realize a wedge-shaped body in which the front part of the body is lowered. The fan 29 may be driven by an electric motor.

The accessory drive shaft 25 may extend the crankshaft itself. However, the accessory drive shaft 25 drives each accessory using an oil motor connected to the oil passage of the engine body as a drive source for the accessories. In this case, there is an advantage that the degree of freedom in the layout of the directions and positions of the accessories is increased, the engine hood can be lowered, and an engine having good vibration resistance can be configured.

In FIG. 3, reference numeral 31 denotes a floor pan, and a toe board 32 is provided in front of the floor pan.
In the figure, reference numeral 33 denotes a dash panel, reference numeral 34 denotes a front seat, and reference numeral 35 denotes a rear seat.

In the illustrated embodiment, the center differential gear
The four-wheel drive type front midship car that drives the front and rear wheels via the box 5 has been described as an example. However, the present invention is also applicable to a front-wheel drive and rear-wheel drive two-wheel drive type front midship car. It can be implemented.

(Effect of the Invention) As described above, according to the present invention, the power plant is housed inside the back bone 4 provided below the center front end of the vehicle compartment, and is located ahead of the power plant and on the front axle or behind the front axle. The master back 21, the alternator 27, and the cooler / compressor 26 of the engine accessories are located away from the engine body, so the power plant is smaller because the accessories are not directly attached to the power plant. By doing so, the toe board 32 can be disposed to be advanced to a position immediately after the front wheels 2,2. This means that the interior length can be increased and the livability can be improved, and the side doors with large openings are set for two-door vehicles, and the side doors are large enough for four-door vehicles.・ It means that a door can be provided. In addition, not only the side door but also the area of the window glass can be increased, so that the open air property is enhanced.

By storing the power plant in the backbone, the load sharing of the front axle can be reduced to about 55%, and the weight sharing of the front and rear axles is improved. As a result, the yaw moment of inertia can be reduced, and the exercise performance is greatly improved.

[Brief description of the drawings]

FIG. 1 is a side view of a front midship car showing one embodiment of the present invention, FIG. 2 is a plan view of the same, FIG. 3 is a side view showing a vehicle interior, FIG. FIG. 5 is a front view of the same. 1 ... Engine, 2 ... Front wheels, 3 ... Rear wheels, 4 ... Back bone, 5 ... Center differential gear box, 6,8
… Rear drive shaft, 9… Rear differential gear box, 10… Front drive shaft, 11… Front differential gear box,
16… muffler, 18… fuel tank, 20… steering wheel, 21… master back, 23… accelerator pedal, 24… brake pedal, 25… auxiliary drive shaft, 26… cooler compressor, 27… Alternator, 29…
Fan, 30 radiator, 32 toe board, 33 dash panel, 34 front seat, 35 rear seat.

Claims (1)

(57) [Scope of request for utility model registration] A backbone is disposed at a position rearward of a front axle and below a center front end of a vehicle interior, and a power plant of a vertical engine is housed inside the backbone. A front midship car wherein a master back, an alternator, and a cooler compressor driven by an engine are arranged in front of the power plant and on or behind the front axle, away from the engine body.