JP4013185B2 - Engine mounting device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an engine mounting apparatus, and more particularly to an engine mounting apparatus in which a projecting portion for fastening an engine mount body is formed on a case of a transmission member that drives a camshaft.
[0002]
[Prior art]
As a conventional engine mounting device, for example, Japanese Patent Laid-Open No. 10-47157 discloses a structure in which an engine mount bracket is integrally formed with a chain case for driving a camshaft.
[0003]
[Problems to be solved by the invention]
However, in the above prior art, because the entire engine mount bracket protrudes forward from the front wall portion of the chain case, the chain case is increased in size and weight in terms of securing the rigidity of the engine mount bracket. There is a drawback that the engine mount cannot be downsized.
[0004]
The present invention has been made in view of the above problems, and an object of the present invention is to provide an engine mounting device that allows engine mounting and downsizing of the engine mount portion in consideration of the on-vehicle state of the engine.
[0005]
[Means for Solving the Problems]
In order to solve the above-described problems and achieve the object, an engine mounting device of the present invention has the following configuration. That is,
Rotating the crankshaft by fastening a metal cover with a U-shaped cross-section having a front wall portion extending in the vertical direction with a predetermined width and a side wall portion bent from the peripheral edge of the front wall portion to the engine body In the engine formed with a case that houses a transmission member that transmits the camshaft to the camshaft, as viewed from the front side of the engine at the position of the engine mounted on the vehicle, above the side wall on one side in the width direction of the metal cover A protrusion that protrudes forward from the front wall and laterally from the side wall, and has a protruding surface that is substantially perpendicular to a perpendicular passing through the axis of the crankshaft, and an elastic body on the protruding portion A screwing member for fastening an engine mount body having a screw hole or a fastening hole of the screwing member, and slanting and supporting the engine so that the projecting surface is located on a perpendicular passing through the axis of the crankshaft , The metal Supply of pumping oil to the camshaft side between the fastening bosses on the front wall of the engine body provided concentrically corresponding to a plurality of fastening bosses to the engine body formed on the cover A storage portion for a control valve that performs control is provided .
[0006]
Furthermore, the preferably, a plurality of fastening bosses formed on the metal cover of the upper and lower at least one other across the protruding portion, wherein is formed at a position along the side wall, these fastening boss The protrusion was connected.
[0008]
Also, preferably, to form a reinforcing rib projecting forward continuous with the protruding portion from the central portion of the front wall portion of the metal cover.
[0009]
Preferably, the control valve is an oil control valve for operating a variable valve timing mechanism, the axis of the oil control valve is set in a horizontal direction, and the storage portion of the oil control valve is a front surface on the engine body side . In addition to the space between the fastening boss portions of the wall portion, the engine body located behind the engine is connected to the flange portion of the fastening surface with the manifold.
[0010]
Preferably, an auxiliary machine mounting boss is provided on the outer side of the plurality of fastening bosses provided at positions along the side wall in the vicinity of the protruding portion of the metal cover.
[0011]
【The invention's effect】
As described above, according to the first aspect of the present invention, the front wall is disposed above the side wall portion on one side in the width direction of the metal cover when viewed from the front side of the engine at the position of the engine mounted on the vehicle. Projecting sideways from the side and sideways from the side wall, forming a projecting part having a projecting surface substantially perpendicular to the perpendicular passing through the axis of the crankshaft, and fastening the engine mount body having an elastic body to the projecting part The slant support of the engine is effectively used by providing a screw member or a fastening hole for the screw member and slanting and supporting the engine so that the protruding surface is located on a perpendicular line passing through the axis of the crankshaft. In addition, an engine mount bracket can be provided at a portion having high rigidity in the storage case of the transmission member that drives the camshaft, and the engine mount bracket is located near the upper center of the engine center of gravity. Can be arranged, it is possible to improve the compactness and the engine supporting performance of the engine mount.
In addition, a control valve storage unit that controls supply of pumping oil to the camshaft side between the fastening bosses on the front wall of the engine body that are concentric with the plurality of fastening bosses on the metal cover. By providing the control valve, it is possible to increase the storage capacity of the control valve and the overall rigidity around the engine mount bracket, and it is possible to reduce the size of the engine including the control valve and improve the engine support performance. .
[0012]
According to the invention of claim 2, a plurality of fastening bosses formed on the metallic cover, the top and bottom at least one across the protruding portion is formed at a position along the side wall, with these fastening boss By connecting the protrusion, the rigidity of the protrusion can be increased.
[0014]
According to the invention of claim 3 , by forming the reinforcing rib that protrudes forward from the central portion of the front wall portion of the metal cover to the protruding portion, the rigidity of the protruding portion can be further increased.
[0015]
According to the invention of claim 4 , the control valve is an oil control valve for operating the variable valve timing mechanism, the axis of the oil control valve is set in the horizontal direction, and the storage portion of the oil control valve is the front surface on the engine body side . In addition to the space between the fastening bosses on the wall, it is connected to the flange on the fastening surface of the engine body located behind the engine, and the mounting rigidity between the front wall of the engine body and the case is controlled by oil. It can be set high by effectively using the valve in the storage part, and the rigidity of the entire engine mount can be improved.
[0016]
According to the fifth aspect of the present invention, the auxiliary machine mounting boss part is provided on the outer side of the plurality of fastening boss parts provided along the side wall part in the vicinity of the protruding part of the metal cover. The bracket for mounting the machine is not required, the configuration of the auxiliary machine mounting part can be simplified, and the weight of the engine can be reduced.
[0017]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
[0018]
FIG. 1 is an external view of an engine chain cover including an engine mounting device according to an embodiment of the present invention. FIG. 2 is a diagram viewed from the X direction of FIG. FIG. 3 is a view seen from the Y direction of FIG. FIG. 4 is a detailed view of FIG.
[0019]
As shown in FIGS. 1 to 4, the engine mounting device of the present embodiment includes a chain 4 for transmitting the driving force of the crankshaft 1 to each camshaft (not shown) and sprockets 5 and 6 coaxial with the camshafts. A chain cover is formed by fastening a metal cover 10 for housing the cylinder block 2 and the cylinder head 3 which are engine bodies. ,
The metal cover 10 includes a front wall portion 11 that extends in a vertical direction with a predetermined width, and a side wall portion 12 that is bent from a peripheral edge 11 a of the front wall portion 11.
[0020]
Above the side wall 12 on one side in the width direction of the metal cover 10, a protrusion 13 is formed protruding forward from the front wall 11 and laterally from the side wall 12. The protrusion 13 has a crankshaft. A projecting surface 13a that is substantially perpendicular to the perpendicular line L1 passing through the axis of 1 and the vicinity of the center of gravity of the engine is formed.
[0021]
The projecting portion 13 is provided with a bolt 14 or a fastening hole 15 for the bolt 14 to be fastened with an engine mount having an elastic body. The projecting portion 13 integrally formed with the metal cover 10, the bolt 14 or the fastening hole 15 is used to mount the engine mount. A bracket 40 is formed. Then, by supporting the so-called horizontally mounted engine in which the crankshaft 1 extends in the direction of the axle (not shown) via the engine mount bracket 40, the engine head is slanted forward of the vehicle body by about 12 °. Mounted.
[0022]
As a result, the engine mount bracket 40 can be provided in a portion where the rigidity of the chain case (metal cover 10) is high, and the engine can be slant supported, and the engine mount portion can be made compact. Further, since the projecting surface 13a is positioned on the perpendicular line L1 passing through the axis of the crankshaft 1 and the vicinity of the center of gravity of the engine, the engine is supported, so that engine vibration can be effectively suppressed.
[0023]
A plurality of fastening boss portions 16 to the engine main body (cylinder block 2 and cylinder head 3) protruding forward from the front wall portion 11 are formed at positions along the vertical side wall portion 12 with the protruding portion 13 interposed therebetween. The fastening boss portion 16 and the substantially central portion of the protruding portion 13 are connected to increase the rigidity.
[0024]
A reinforcing rib 18 is formed on the front wall 11 of the metal cover 10 so as to protrude forward from the central fastening boss 16a to the cylinder head 3 at the central portion thereof.
[0025]
An extending portion 17 is formed on the outer side of the plurality of fastening boss portions 16 provided on the front wall portion 11 of the metal cover 10, and an auxiliary equipment mounting boss portion 19 is provided on the extending portion 17. ing. The auxiliary machine 30 is an alternator, for example, and is attached to the auxiliary machine mounting boss part 19 and the boss part on the cylinder block 2 side.
[0026]
Thus, by providing the protruding portion 13 at the bent portion of the front wall portion 11 and the side wall portion 12, the engine and the auxiliary device can be supported by the portion having high rigidity, and in particular, the bracket for attaching the auxiliary device or the like becomes unnecessary.
[0027]
Further, between the cylinder block 2 on the engine body side concentrically provided corresponding to the plurality of fastening boss portions 16 and the fastening boss portions 26a and 26b on the front wall portion of the cylinder head 3, toward the camshaft side. A housing portion 21 for the oil control valve 20 is provided for operating a variable valve timing mechanism that controls the supply of the pressure-feed oil.
[0028]
With the axis L2 of the oil control valve 20 in the horizontal direction, the storage portion 21 of the oil control valve 20 is located on the rear side of the engine in addition to a portion having a high rigidity where the fastening boss portion 26b of the front wall portion of the cylinder head 3 is disposed. The cylinder head 3 is formed so as to be continuous with the flange portion 23 of the fastening surface 22 a with the intake manifold 22.
[0029]
Thereby, the mounting rigidity between the front wall portion of the cylinder head 3 and the chain case can be set high by effectively using the mounting of the oil control valve 20 to the storage portion 21, and the rigidity of the entire engine mount bracket 40 portion can be increased. It can be improved.
[0030]
Note that the present invention can be applied to modifications or variations of the above-described embodiment without departing from the spirit of the present invention.
[Brief description of the drawings]
FIG. 1 is an external view of an engine chain cover including an engine mounting device according to an embodiment of the present invention.
FIG. 2 is a diagram viewed from the X direction of FIG.
3 is a view seen from the Y direction of FIG. 1;
FIG. 4 is a detailed view of FIG. 1;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Metal cover 11 Front wall part 12 Side wall part 13 Protrusion part 16 Boss part 17 Extension part 19 Boss part 40 for mounting auxiliary equipment Engine mount bracket

Claims (5)

Rotating the crankshaft by fastening a metal cover with a U-shaped cross-section having a front wall portion extending in the vertical direction with a predetermined width and a side wall portion bent from the peripheral edge of the front wall portion to the engine body In an engine formed with a case that houses a transmission member that transmits to the camshaft,
In a state as viewed from the engine front side of the engine position mounted on a vehicle, the side wall above the one side in the width direction of the metal cover, protrudes laterally from forward from the front wall portion and the side wall portions A projecting portion having a projecting surface substantially perpendicular to a perpendicular passing through the axis of the crankshaft, and a threaded member or a threaded member for fastening an engine mount body having an elastic body to the projecting portion. A fastening hole is provided, and the engine is slanted and supported so that the projecting surface is located on a vertical line passing through the axis of the crankshaft .
Pumped to the camshaft side between the fastening bosses of the front wall on the engine body side concentrically provided corresponding to a plurality of fastening boss parts to the engine body formed on the metal cover An engine mounting device comprising a storage portion for a control valve for controlling oil supply . A plurality of fastening bosses formed on the metal cover of the upper and lower at least one other across the protruding portion, wherein is formed at a position along the side wall portion, connecting said projecting portions with these fastening boss The engine mounting device according to claim 1, wherein: The engine mounting device according to claim 1 or 2, wherein a reinforcing rib is formed to project forward from the central portion of the front wall portion of the metal cover to the projecting portion. The control valve is an oil control valve for operating a variable valve timing mechanism, and the axis of the oil control valve is set in the horizontal direction, and the storage portion of the oil control valve is a fastening boss on the front wall portion on the engine body side. The engine mounting device according to claim 1 , wherein the engine mounting device is connected to a flange portion of a fastening surface with a manifold of an engine main body located behind the engine in addition to between the portions.   The auxiliary machine mounting boss portion is further provided on the outer side of the plurality of fastening boss portions provided at positions along the side wall portion in the vicinity of the protruding portion of the metal cover. Engine mounting device.

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