JPH1047157A - Mounting device for engine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simplify the shape of a mount bracket to reduce the number of parts for reducing its weight, and to mount-support an engine at the most suitable position to effectively utilize a space for achieving a reduction in cost. SOLUTION: A chain case 6 which covers a chain to connect the crank shaft and cam shaft of an engine and is fitted to one side in the axial direction of the crank shaft of the engine is provided, and the chain case is provided with a mount fitting section 30 where a member to compose a mount device is attached, and a breather chamber 34 is provided in the mount fitting section.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mounting device for an engine, and more particularly, to a mounting bracket having a simplified shape, a reduced number of parts, and a reduced weight.
The present invention relates to an engine mounting device that can support a mount at an optimal position, can effectively use space, and can achieve cost reduction.

[0002]

2. Description of the Related Art An engine mounted on a vehicle is supported by a mount device in order to prevent vibration during operation from propagating to a vehicle body. FIGS. 10 and 11 show a conventional engine mounting device.

In FIG. 10, reference numeral 102 denotes an engine,
4 is a transmission, 106 is a chain case, 1
08 is a mounting device. In the engine 102, a chain case 106 that covers a chain connecting a crankshaft (not shown) and a camshaft is mounted on one side in the direction of the crankshaft axis A, and the transmission 104 is connected to the other side in the direction of the crankshaft axis A.

[0004] The mounting device 108 includes an engine 10
Mount brackets 116 and 118 are mounted on the intake side 112 and the exhaust side 114 of the second cylinder block 110 in a direction intersecting the crankshaft axis A, respectively, and the mount bracket 120 is mounted on the transmission 104.

[0005] The mounting device 108 supports the engine 102 and the transmission 104 on a vehicle body (not shown) via mount bushes (not shown) attached to the mount brackets 116 to 120.

In FIG. 11, reference numeral 202 denotes an engine, 204 denotes a transmission, 206 denotes a chain case, and 208 denotes a mounting device. Mounting device 20
8 has mount brackets 216 and 218 attached to the intake side 212 and exhaust side 214 of the cylinder block 210 of the engine 202 in a direction intersecting the crank axis A, respectively, and the mount bracket 220 is attached to the transmission 204.

The mount device 208 is formed by bending a mount bracket 216 attached to, for example, the intake side 212 of the cylinder block 210 so as to be located in front of the chain case 206 in order to support the mount on the inertia main shaft. ing.

The mounting device 208 supports an engine 202 and a transmission 204 on a vehicle body (not shown) on a main shaft of an inertia via a mounting bush (not shown) attached to the mounting brackets 216 to 220.

[0009] Such an engine mounting device is disclosed in Japanese Utility Model Publication No. 2-40292, Japanese Utility Model Publication No. 1-1362.
No. 6, JP-A-3-43563.

Japanese Unexamined Utility Model Publication No. 2-40292 discloses a mounting bracket seat interposed between an engine mounting bracket and the engine body near the center of an end cover attached to an end of the engine body. , Provided integrally.

Japanese Utility Model Publication No. Hei 1-136626 discloses a mounting bracket which extends from the engine body side in the left-right direction of the wheel, penetrates the timing belt cover and projects outside the timing belt cover. A horizontal insulator mounting seat surface is provided on an upper surface of a distal end portion of a protruding portion of the mounting bracket protruding outside the timing belt cover.

Japanese Utility Model Laid-Open Publication No. 3-43563 discloses at least one boss for mounting an engine mount on a side wall of a cylinder head, and ribs provided radially from the boss. Etc. are connected to each other.

[0013]

However, FIG.
In the conventional mounting device shown in FIG. 11, there is room for improvement in the mounting support position, which is disadvantageous for vibration and sound.

For example, in order to mount and support at an optimum position, as shown in FIG. 11, a mount bracket 216 attached to the intake side 212 of the cylinder block 210 is used.
Must be bent so as to be located in front of the chain case 206.

For this reason, the mounting device 20 shown in FIG.
8 is disadvantageous in that the shape of the mount bracket 216 is complicated, which leads to an increase in weight and cost, and a large layout space is required, so that a wasteful space becomes large in space. is there.

Further, the mounting device 208 shown in FIG.
Mount chain 216 of complicated shape from the intake side 212 of cylinder block 210
6, there is a disadvantage that the layout of the accessory driving belt is greatly restricted.

[0017]

Accordingly, in order to eliminate such inconvenience, the present invention covers a chain connecting a crankshaft and a camshaft of an engine and is attached to one side of the crankshaft axial direction of the engine. It is characterized in that a chain case is provided, a mounting portion for mounting a member constituting a mounting device is provided in the chain case, and a breather chamber is provided in the mounting portion for mounting.

[0018] The mounting bracket of the chain case is provided integrally with a mounting bracket constituting a mounting device, and the mounting bracket of the chain case comprises a mounting device. A bracket mounting seat for mounting a mount bracket is provided.

[0019]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The mounting device according to the present invention has a mounting bracket for mounting members constituting the mounting device on a chain case mounted on one side of the engine in the axial direction of the crankshaft. The mount can be supported on the inertia spindle without complicating the shape.

Further, in the mounting device of the present invention, the breather chamber is provided in the mounting portion provided in the chain case, so that the space in which the mounting portion is provided is used for an engine device other than the mounting device. be able to.

By providing a mounting bracket integrally with the mounting portion of the chain case, the number of parts and the number of assembling steps can be reduced, and the mounting portion of the chain case can be reduced. By providing a bracket mounting seat to which a mounting bracket is mounted, a breather chamber having a complicated shape can be formed.

[0022]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 3 show a first embodiment of the present invention. In FIG. 1, reference numeral 2 denotes an engine, 4 denotes a transmission, 6 denotes a chain case, and 8 denotes a mounting device.

As shown in FIG. 3, the engine 2 has an oil pan 12 mounted on a lower portion of a cylinder block 10 and a cylinder head 14 mounted on an upper portion of the cylinder block 10.
A head cover 16 is attached to the cylinder head 14.

The cylinder block 10 supports a crankshaft 18. In the cylinder head 14,
A cam shaft (not shown) for driving an intake valve and an exhaust valve (not shown) is supported. The crankshaft 18 and the camshaft are connected by a chain 20 on one side in the direction of the crankshaft axis A of the engine 2.

In the engine 2, the chain case 6 that covers the chain 20 is mounted on one side in the direction of the crankshaft axis A, and the transmission 4 is connected to the other side in the direction of the crankshaft axis A.

The mounting device 8 is, as shown in FIG.
Crankshaft axis A of cylinder block 10 of engine 2
For example, a mount bracket 24 constituting the mounting device 8 is attached to the exhaust side 22 in a direction intersecting with the mounting bracket 8, and a mount bracket 26 constituting the mounting device 8 is attached to the transmission 4. A mount bracket 28 is provided to constitute the mount device 8 when positioned.

As shown in FIGS. 2 and 3, the mounting device 8 is mounted on a chain case 6 mounted on one side of the engine 2 in the direction of the crankshaft axis A in a mounting portion for mounting members constituting the mounting device 8. 30 are provided.

In the mounting device 8 of the first embodiment, the mounting bracket 28 constituting the mounting device 8 is integrally provided on a mounting mounting portion 30 of the chain case 6. The mount bracket 28 located on the front side of the chain case 6 is provided with a mount bush mounting seat 32 to which a mount bush (not shown) constituting the mounting device 8 is mounted.

The mounting device 8 includes the mounting bracket 2
Mount bush attached to 4-28 (not shown)
, The engine 2 and the transmission 4 are supported on a vehicle body (not shown) on an inertia main shaft.

The mounting portion 30 has a rib arrangement and a box shape, and has a breather chamber 34 therein. The breather chamber 34 is defined by a breather plate 36. The blow-by gas in the oil pan 12 is supplied to the breather passage 38 in the chain case 6.
As a result, the oil is guided to the breather chamber 34, where the oil is separated, and then guided to an air cleaner or an intake passage (not shown).

As described above, the mounting device 8 of the first embodiment
Is provided with a mounting part 30 for mounting members constituting the mounting device 8 on a chain case 6 mounted on one side of the engine 2 in the direction of the crank axis A, and
By providing the mount bracket 28 integrally with the mounting portion 30 for mounting, the mount can be supported on the principal axis of inertia without complicating the shape of the mount bracket 28.

For this reason, the mounting device 8 can simplify the shape of the mounting bracket 28, reduce the weight, reduce the cost, and effectively use the space without wasting space. In addition, the mount can be supported at an optimum position, which is advantageous for vibration and sound.

In addition, the mounting device 8 can reduce the number of parts and the number of assembling steps by integrally providing the mounting bracket 28 on the mounting portion 30 of the chain case 6.

In the mounting device 8, the breather chamber 34 is provided in the mounting portion 30 provided in the chain case 6, so that the space in which the mounting portion 30 is provided can be reduced to an engine device other than the mounting device. It can also be used for a blow-by gas device.

For this reason, this mounting device 8 can achieve effective use of space and can achieve cost reduction.

FIGS. 4 to 9 show a second embodiment of the present invention. In the second embodiment, portions that perform the same functions as in the first embodiment will be described with the same reference numerals.

That is, in FIG. 1, 2 is an engine, 4 is a transmission, 6 is a chain case, and 8 is a mounting device. In this engine 2, as shown in FIG. 9, an oil pan 12 is attached to a lower portion of a cylinder block 10,
The cylinder head 14 is mounted on the upper part of the cylinder block 10, and the head cover 16 is attached to the cylinder head 14.

The cylinder block 10 supports a crankshaft 18. In the cylinder head 14,
A cam shaft (not shown) for driving an intake valve and an exhaust valve (not shown) is supported. The crankshaft 18 and the camshaft are connected by a chain 20 on one side in the direction of the crankshaft axis A of the engine 2.

As shown in FIG. 1, the engine 2 has the chain case 6 for covering the chain 20 attached to one side in the direction of the crankshaft axis A, and the transmission 4 connected to the other side in the direction of the crankshaft axis A. I have.

The mounting device 8 is, as shown in FIG.
Crankshaft axis A of cylinder block 10 of engine 2
For example, a mount bracket 24 constituting the mounting device 8 is attached to the exhaust side 22 in a direction intersecting with the mounting device 8, a mount bracket 26 constituting the mounting device 8 is attached to the transmission 4, and on the inertia main shaft on the front side of the chain case 6. A mount bracket 28 is provided to constitute the mount device 8 when positioned.

The mounting device 8 includes a chain case 6 attached to one side of the engine 2 in the direction of the crankshaft axis A.
Further, a mounting portion 30 for mounting a member constituting the mounting device 8 is provided.

As shown in FIGS. 4 and 5, the mounting device 8 of the second embodiment includes a mounting portion 3 for the chain case 6.
0, the mounting bracket 28 constituting the mounting device 8 is not provided integrally but is provided separately, and a bracket mounting seat 40 to which the mounting bracket 28 is mounted is provided. The mount bracket 28 located on the front side of the chain case 6 is provided with a mount bush mounting seat 32 to which a mount bush (not shown) constituting the mounting device 8 is mounted.

The mounting device 8 supports the engine 2 and the transmission 4 on a vehicle body (not shown) on a main shaft of the vehicle via mount bushes (not shown) attached to the mount brackets 24 to 28.

Further, in the mounting portion 30 for mounting,
As shown in FIGS. 6 to 8, a breather chamber 34 is provided.
The breather chamber 34 is defined by a breather plate 36. The blow-by gas in the oil pan 12 is guided to the breather chamber 34 by the breather passage 38 in the chain case 6, where the oil is separated, and later to an air cleaner or an intake passage (not shown).

As described above, the mounting device 8 of the second embodiment
Is provided with a mounting part 30 for mounting members constituting the mounting device 8 on a chain case 6 mounted on one side of the engine 2 in the direction of the crank axis A, and
By providing the bracket mounting seat 40 to which the mounting bracket 28 is mounted on the mounting portion 30 for mounting, the mounting can be supported on the main shaft of inertia without complicating the shape of the mounting bracket 28.

Therefore, in the mounting device 8, the shape of the mounting bracket 28 can be simplified, the weight can be reduced, the cost can be reduced, and the space can be effectively used without wasting space. In addition, the mount can be supported at an optimum position, which is advantageous for vibration and sound.

Further, in the mounting device 8, the breather chamber 34 having a complicated shape can be formed by providing the bracket mounting seat 40 on which the mounting bracket 28 is mounted on the mounting mounting portion 30 of the chain case 6.

In the mounting device 8, the breather chamber 34 is provided in the mounting portion 30 provided in the chain case 6, so that the space in which the mounting portion 30 is provided can be reduced. It can also be used for a blow-by gas device.

For this reason, the mounting device 8 can effectively utilize the space and can reduce the cost.

[0050]

As described above, according to the mounting apparatus of the present invention, the mounting portion for mounting the members constituting the mounting apparatus is provided on the chain case mounted on one side of the engine in the axial direction of the crankshaft. The mount can be supported on the main axis of inertia without complicating the shape of the bracket.

Therefore, the mounting device can simplify the shape of the mounting bracket, reduce the weight,
The cost can be reduced, the space can be effectively used without wasting space, and the mount can be supported at an optimum position, which is advantageous for vibration and sound.

Further, in the mounting device of the present invention, since the breather chamber is provided in the mounting portion provided in the chain case, the space in which the mounting portion is provided can be used for an engine device other than the mounting device. be able to.

For this reason, this mounting device can achieve effective use of space and can achieve cost reduction.

By providing a mounting bracket integrally with the mounting portion of the chain case, the number of parts and the number of assembling steps can be reduced, and the mounting portion of the chain case can be reduced. By providing a bracket mounting seat to which a mounting bracket is mounted, a breather chamber having a complicated shape can be formed.

[Brief description of the drawings]

FIG. 1 is a schematic plan view of an engine showing an embodiment of an engine mounting device according to the present invention.

FIG. 2 is a first view of an engine mounting device according to the present invention;
It is a front view of the chain case which shows an Example.

FIG. 3 is a side view of a chain case.

FIG. 4 shows a second embodiment of the engine mounting device according to the present invention.
It is a front view of the chain case which shows an Example.

FIG. 5 is a side view of the chain case.

FIG. 6 is a sectional view of a chain case.

FIG. 7 is a rear view of the chain case to which the breather plate is attached.

FIG. 8 is a rear view of the chain case with the breather plate removed.

FIG. 9 is a sectional view of a chain case portion of the engine.

FIG. 10 is a schematic plan view of an engine showing a conventional example of an engine mounting device.

FIG. 11 is a schematic plan view of an engine showing another conventional example of an engine mounting device.

[Explanation of symbols]

 2 Engine 4 Transmission 6 Chain case 8 Mounting device 10 Cylinder block 12 Oil pan 14 Cylinder head 16 Head cover 18 Crankshaft 20 Chain 22 Exhaust side 24 Mount bracket 26 Mount bracket 28 Mount bracket 30 Mounting mounting portion 32 Mount bush mounting seat 34 Breather Chamber 36 Breather plate 38 Breather passage 40 Bracket mounting seat

Claims (3)

[Claims] 1. A chain case which covers a chain connecting a crankshaft and a camshaft of an engine and is mounted on one side of the engine in the axial direction of the crankshaft. A mounting device for an engine, comprising: a mounting portion for mounting; and a breather chamber provided in the mounting portion for mounting. 2. The engine mounting device according to claim 1, wherein a mounting bracket constituting a mounting device is integrally provided on the mounting mounting portion of the chain case. 3. The engine mounting device according to claim 1, wherein a bracket mounting seat for mounting a mounting bracket constituting the mounting device is provided on the mounting mounting portion of the chain case.