JP2002115560A - Multi-cylinder engine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a multi-cylinder engine improved so as to make an electrode terminal of an electric apparatus for engine hard to contact with a car body at collision time. SOLUTION: This multi-cylinder engine, having an electric apparatus for engine, arranges an electrode terminal 19 of the electric apparatus (for instance, alternator 4 in the embodiment) in a location opposed to a cylinder train direction end face of a part (for instance, intake manifold 15 in the embodiment) fixed to a position adjacent to the electric apparatus. In this way, even when a car body is deformed at collision time, by protecting with the intake manifold or the like, the electrode terminal is made hard to contact with the car body.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a multi-cylinder engine provided with an electric device for an engine.

[0002]

2. Description of the Related Art Various electric devices are attached to a main body of a multi-cylinder engine. For example, an alternator for charging a battery that supplies power to an electric device provided in an automobile is disposed on a side of a crank pulley end of an engine body, and its electrode terminal is disposed on a side surface or a back surface of the alternator. That was common.

[0003]

However, the electrode terminal of the conventional alternator is provided at a position directly facing the vehicle body frame, the radiator, etc., so that when the vehicle collides, it comes into contact with the deformed vehicle body and short-circuits. There was a fear.

[0004] The present invention has been devised to solve such problems of the prior art, and its main objects are as follows.
An object of the present invention is to provide a multi-cylinder engine improved so that electrode terminals of an electric device for an engine hardly come into contact with a vehicle body in a collision.

[0005]

In order to achieve the above object, according to the present invention, a multi-cylinder engine provided with an engine electric device is connected to an electrode terminal of the electric device (for example, the alternator 4 in the embodiment). 19 is provided at a position opposed to an end face in the cylinder row direction of a component (for example, the intake manifold 15 in the embodiment) fixed at a position adjacent to the electric device.

With this configuration, even if the vehicle body is deformed at the time of a collision, it is protected by the intake manifold or the like, so that the electrode terminals hardly come into contact with the vehicle body.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The configuration of the present invention will be described below in detail with reference to the accompanying drawings.

FIG. 1 shows an in-line multi-cylinder engine to which the present invention is applied as viewed from a crank pulley side. An oil pump 2 for a power steering device, a tensioner pulley 3, an alternator 4, a water pump 5 for cooling the engine, and a compressor 6 for air conditioning are arranged on the side of the crank pulley end of the engine body 1 of the in-line multi-cylinder engine from above. They are arranged in this order. These auxiliary machines have a so-called serpentine type formed by a single (common) endless belt 13 wound between pulleys 7 to 11 provided on each of the auxiliary machines and a crank pulley 12, thereby forming a crankshaft. Although they are collectively driven by power, the oil pump 2 for the power steering device, the alternator, and the 4 and the air conditioning compressor 6 are separated from the engine body 1 to the right in FIG. 1, the tensioner pulley 3 and the engine cooling water pump 5
Are disposed close to the engine body 1.

In this way, the plurality of accessories 2 to 6 are compactly arranged on one side of the engine body 1 and the plurality of accessories 2 to 6 can be reliably driven by one endless belt 13. ing.

As shown in FIGS. 2 and 3, an intake manifold 15 is provided on the side of the cylinder head 14 where these accessories are provided. In addition, FIG.
The figure shows a state in which the alternator 4 is removed and all the other auxiliary machines are removed. This intake manifold 1
Reference numeral 5 denotes four independent intake pipes A1, A2, and A3 for each cylinder.
A4 is arranged in parallel in the cylinder row direction, and each intake pipe A1, A2, A3, A4 has one end connected to the cylinder head 14 and the other end connected to the cylinder head 1
After being extended in the direction away from 4, it is curved, extended downward along the side surface of the cylinder block 16, further curved toward the cylinder block 16, and then toward the coupling end side with the cylinder head 14. That is, it extends upward, and has a shape that is entangled like a cochlea as a whole.

At the center where the intake pipes A1, A2, A3 and A4 are wound, an intake collecting chamber connected to a throttle body and a rotary valve for changing the intake pipe length stepwise are provided. However, description of these will be omitted.

As described above, the alternator 4 located at the middle of the plurality of auxiliary machines is separated from the engine body 1 to the right in FIG. 1, but in order to fix the alternator 4 at such a position, The alternator 4 is provided on a side surface of the cylinder block 16 via a bracket 17 for raising the height.
It is bolted up and down. The bracket 17 has a cooling water passage 18 connected to a cooling water pump.
Are formed. In this way, the bracket 17 is used not only as a raising member but also as a multifunctional member.

On the end face of the alternator 4 on the side opposite to the pulley,
An electrode terminal 19 for connecting to a battery (not shown) is provided. The electrode terminal 19 is connected to the intake manifold 1
5, when the engine main body 1 is placed laterally with respect to the vehicle body, the body frame deformed at the time of collision abuts against the intake manifold 15, which serves as a protective barrier and serves as a protective barrier. The terminal 19 is prevented from contacting the vehicle body frame.

A starter motor 21 is provided in a gap G between the intake manifold 15 and the cylinder block 16, and is provided between the starter motor 21 and the air conditioning compressor 6 in the cylinder row direction. A thermo case 24 integrated with a hose port 23 and having a built-in thermostat valve is provided at a portion located below the intake manifold 15 with the alternator mounting bracket 1.
7 is attached to a part integrally formed.

[0015]

As described above, according to the present invention, it is possible to prevent an electrode terminal of an electric machine such as an alternator from contacting a body frame or the like deformed at the time of a collision. A great effect can be achieved in reducing the possibility of causing.

[Brief description of the drawings]

FIG. 1 is a front view of a crank pulley side of an in-line multi-cylinder engine according to the present invention.

FIG. 2 is a front view of only a main part of the engine shown in FIG. 1;

FIG. 3 is a diagram showing an obliquely upward view of the engine shown in FIG. 1 from below.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Engine main body 4 Alternator 15 Intake manifold 19 Electrode terminal

Claims (2)

[Claims] 1. A multi-cylinder engine including an electric device for an engine, wherein an electrode terminal of the electric device is disposed at a position opposed to an end face in a cylinder row direction of a component fixed at a position adjacent to the electric device. A multi-cylinder engine. 2. A multi-cylinder engine including an engine electrical device, wherein the engine electrical device is an alternator, and an electrode terminal of the alternator is disposed at a position facing an end face of the intake manifold in the cylinder row direction. A multi-cylinder engine characterized by that.