JPH0427715A - Engine auxiliary machine parts fitting structure - Google Patents

Abstract

PURPOSE:To shorten the longitudinal measure of an engine room and make this fitting structure very advantageous to a measure to counter noise and vibration by fitting an auxiliary machine part to an engine mount, in the reverse direction to the other engine auxiliary machine parts, and adjusting each auxiliary machine pulley so as to be on a driving belt line. CONSTITUTION:An auxiliary machine part 5 is fitted to an engine mount member 2 for supporting the side part of an engine body elastically on a vehicle body, in the reverse direction to other engine auxiliary machine parts 3, 4, 6. An auxiliary machine pulley 12 is adjusted to be on a belt line together with the auxiliary machine pulley 13 of the auxiliary machine part 6 and a crankshaft pulley 8, and a driving belt 14 is hangingly laid thereon. Accordingly, there is no need to dispose the auxiliary machine part 5 in the state of being overhung largely in front of the engine body 1. A countermeasure to noise and vibration can be also taken since the auxiliary machine part 5 is fitted to the engine mount member 2. The formative freedom of a body front part can be thus enlarged, and this structure is also advantageous to a measure to counter vibration.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to an engine in an automobile, particularly an automobile in which the engine body is mounted horizontally in the engine room, such as an F-F type automobile (front engine/front drive type automobile). Regarding the mounting structure of auxiliary parts.

Conventional technology Figure 5 shows the mounting structure of engine auxiliary parts in a conventional F-F type car.The engine body l is placed horizontally in the engine room (E-R), and the It is elastically supported on the vehicle body by an engine mount member 2 disposed in the engine mount member 2. Oil pump for power steering3.
Water pump 4. Alternator 5. Engine auxiliary parts such as the air conditioner compressor 6 are attached to the engine body 1, biased to one side of the engine body 1 where the crankshaft pulley 7.8 is disposed, and attached to the engine body 1. ．． Drive belt I straddles lO
A drive belt 14 is hung across the crankshaft pulley 8 and auxiliary pulleys 12 and 13 to form a power transmission system. In Fig. 5, 15 is the center member of the vehicle body, 16 is the front side member, 17 is the dash panel, and I8 is the engine hood. This similar structure is shown in, for example, Japanese Utility Model Application No. 61-155383.

Problems to be Solved by the Invention As mentioned above, since the power transmission system for the engine auxiliary parts 3, 4, and 5.6 is constructed by connecting a plurality of drive belts 11.14 in multiple stages, these engine auxiliary parts 3, 4, and 5.6 are Parts 3, 4, 5.
6 is an auxiliary machine pulley 9.10 and an auxiliary machine pulley 12.1
3 must be arranged so that they do not overlap in the plane direction, and for example, one engine auxiliary part 5 must be arranged with a relatively large offset in front of the engine main body l as shown in the figure. . For this reason, the engine room (E/R
) increases in front-to-rear length, which places significant restrictions on the degree of freedom in shaping the front of the vehicle body.

In addition, since the engine auxiliary parts 5 are arranged at a distance from the engine main body l, this is not only disadvantageous in terms of anti-vibration measures, but also makes it easier for the engine auxiliary parts 5 to resonate, so the mounting bracket This results in the inconvenience of having to increase the strength of the material more than necessary.

Therefore, the present invention allows engine auxiliary parts to be placed as centrally as possible on one side of the engine body, thereby reducing the amount of overhang toward the front of the engine body and increasing the degree of freedom in shaping the front of the vehicle body. In addition, the present invention provides a mounting structure for engine auxiliary parts that is effective in terms of anti-vibration measures.

Means for Solving the Problem A plurality of engine auxiliary parts are collectively arranged on one side of an engine body placed horizontally, with the axis of each auxiliary pulley parallel to the axis of the crankshaft pulley, and at least one engine auxiliary part The machine parts are attached to the engine mount member that elastically supports the side of the engine body to the vehicle body in the opposite direction to other engine auxiliary parts, and the auxiliary machine pulleys that hang the same drive belt are aligned on the drive belt line. It is arranged as follows.

By attaching at least one engine auxiliary part to the engine mount member in the opposite direction to other engine auxiliary parts and aligning the auxiliary pulleys with each other, the drive belt can be applied to these auxiliary pulleys, and By attaching the engine mount member to the engine mount member, the protrusion of the engine auxiliary component toward the front of the engine body is reduced accordingly. Furthermore, by attaching the engine auxiliary parts to the engine mount member, a mass damper is constructed in which the elastic body of the engine mount member is used as a moving spring and the weight of the engine auxiliary part is used as a mass.

Embodiment Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings, with the same reference numerals assigned to the same parts as in the conventional structure.

In Figures 1 to 4, ■ is the engine body placed horizontally in the engine room, and on the - side there are multiple engine auxiliary parts, such as a power steering oil pump 3.
．． Water pump 4. Alternator 5. The air conditioner compressor 6 (hereinafter simply referred to as auxiliary equipment parts) is arranged so that the axis of each auxiliary equipment pulley 9, 10, 12, 13 is parallel to the axis of the crankshaft pulley 7.8.

In this embodiment, the auxiliary equipment parts 3.4 are fastened and fixed to the support blocks 26.27 formed on the engine body 1, the auxiliary equipment pulleys 9.10 and the crankshaft pulley 7 are aligned on the belt line, and the drive heald 1. ■ is hung on a rack.

Further, the auxiliary machine part 6 is fastened and fixed on a mounting seat 28 formed in the engine body l at a position below the auxiliary machine part 4 and offset forward from the auxiliary machine part 4, The auxiliary equipment part 5 is attached to the engine mount member 2 that elastically supports the side part of the engine main body l to the vehicle body in the opposite direction to the other engine auxiliary equipment parts 3, 4.6, and attached to the auxiliary equipment pulley 12.
, the auxiliary machine pulley 13 of the auxiliary machine part 6. The drive belt 14 is suspended in alignment with the crankshaft pulley 8 on the belt line.

The engine mount member 2 includes an outer cylinder 20, an inner cylinder 211, and a vibration-proof rubber 2 interposed between the outer cylinder 20 and the inner cylinder 21.
2, a bracket 24 protruding from one side of the outer cylinder 20 is fixed with a bolt 31 on a bracket 29 with a bolt 30 fixed to the side of the engine body 1, and is inserted into the inner cylinder 21. The engine body i is connected to the vehicle body side bracket 32 via the support shaft 23, thereby elastically supporting the side portion of the engine body i to the vehicle body.

A boss part 25 for attaching auxiliary parts is integrally protruded on the upper side of the outer cylinder 20 of the engine mount member 2, and the auxiliary part 5 is attached to both sides of the upper part of the boss part 25 on both sides of the boss part 25. It is rotatably mounted by connecting bolts and nuts 34 through a bracket 33 provided at the top. A bracket 35 is provided protruding from the side of the lower part of the auxiliary equipment part 5 on the side of the engine body 1, and this bracket 35 is attached to the side of the engine body 1, specifically, to the support block 27 with an adjusting part fixed at one end. 36, the tension of the drive belt 14 can be adjusted by connecting and supporting the length of the arcuate slit 37 with adjustment bolts 38 and 39 so as to be rotatable in the front and rear directions around the bolt/nut 34 connection point as a fulcrum. ing.

According to the structure of the above embodiment, the auxiliary part 5 is attached to the engine mount member 2 in the opposite direction to the other auxiliary parts 3, 4. Close to auxiliary parts 3, 4, and 6 as much as possible.

The drive belt 14 can be hung on the auxiliary equipment pulleys 12, 13 and the crankshaft pulley 8, and therefore, the auxiliary equipment parts 5 can be arranged in a large overhang to the front of the engine body l as in the past. Since it is not necessary to arrange the engine room (E-R) longitudinally, there is no need to enlarge the front-rear length of the engine room (E-R), and the degree of freedom in shaping the front of the vehicle body can be increased.

Furthermore, since this auxiliary part 5 is attached to the engine mount member 2, a mass damper is constructed in which the weight of the auxiliary part 5 is used as a mass and the vibration isolating rubber 22 of the engine mount member 2 is used as a moving spring. There is no need to attach a dedicated mass damper to the engine mount member 2 as a measure to prevent muffled noise due to engine vibration, and it is also possible to take measures against noise and vibration.

Effects of the Invention As described above, according to the present invention, at least one of the plurality of engine auxiliary parts is attached to the engine mount member on the side of the engine body in a direction opposite to the other engine auxiliary parts. Since the accessory pulleys are installed and aligned on the drive belt line, these engine accessory parts can be placed as close to the side of the engine as possible on a plane, reducing the amount of overhang toward the front of the engine body. can be sandwiched. As a result, it is possible to reduce the rear dimension of the engine room, and there is no need to use long stays to support auxiliary parts, which is very advantageous in terms of sound vibration. In addition, a mass damper can be configured by attaching auxiliary parts to the engine mount member, so noise and vibration countermeasures can be implemented without using a dedicated mass damper. This has a great practical effect of realizing cost reduction.

[Brief explanation of the drawing]

Fig. 1 is a schematic side view showing one embodiment of the present invention, Fig. 2 is a plan view of the same, Fig. 3 is a view taken in the direction of the ■ arrow in Fig. 1, and Fig. 4 shows the installed state of the engine mount. Front view similar to Figure 3;
FIG. 5 is a schematic side view showing a conventional structure. l...Engine body, 2 - Engine mount member,
3.4.5.6...Engine auxiliary parts, 7.8...
Crankshaft, 9, 10, 12.13... Auxiliary pulley 11.14... Drive belt. Ward 3, Figure 4

Claims (1)

[Claims] (1) A plurality of engine auxiliary parts are arranged together on one side of the horizontally placed engine body, with the axis of each auxiliary pulley parallel to the crankshaft pulley axis, and at least one engine auxiliary part is arranged, The engine mount member that elastically supports the side of the engine body on the vehicle body is attached in the opposite direction to other engine auxiliary parts, and the auxiliary pulleys that hang the same drive belt are aligned on the drive belt line. A mounting structure for engine auxiliary parts, which is characterized by: