JP2007253779A - Mounting device of internal combustion engine for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a mounting device of an internal combustion engine for a vehicle constituted by loading a power unit 3 constituted by connecting a transmission case 5 to an end surface 4b of the internal combustion engine 4 in an engine room 2 in the vehicle, through two-point supporting of an engine side mounting member 6 mounted on the other end surface 4c of the internal combustion engien out of the power unit, and of a transmission side mounting member 7 mounted on a distal end of the transmission case, wherein vibration of the power unit is reduced, and arrangement of various wire cables for operation in the engine room is simplified. <P>SOLUTION: The transmission side mounting member 7 and the one end surface 4b of the internal combustion engine or a connecting part to the internal combustion engine in the transmission case are connected to each other by a reinforcing member 18, and a passage 18a devised to insert a wire cable 13 for various operation in the inside of this reinforcing member is provided so as to extend in the longitudinal direction of the reinforcing member. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a mounting device when an internal combustion engine used in a vehicle is mounted in an engine room of the vehicle.

  Generally, an internal combustion engine for a vehicle has a power unit configuration by joining a transmission case with a torque converter housing to one end surface in the crankshaft direction so that the transmission case projects from the one end surface in the crankshaft direction. It is configured to be mounted in the engine room of the vehicle in the form of this power unit.

  For this mounting, conventionally, for example, as described in Patent Documents 1 and 2, etc., an engine-side mount member is attached to the other end surface of the internal combustion engine in the crankshaft direction of the power unit. A transmission-side mount member is attached to the front end of the transmission case, and is mounted in the engine room of the vehicle in a state of being supported via the two mount members.

Also, in the engine room in which the power unit is mounted, as described in, for example, Patent Document 3, an accelerator wire cable that connects a throttle valve in the internal combustion engine and an accelerator petal in the vehicle, or the transmission Various operation wire cables such as a clutch wire cable for connecting a clutch in the case and a clutch petal in the vehicle are disposed, and a flexible harness such as various electric wirings or a pressure transmission hose is disposed.
JP 2003-2070 A JP-A-2005-59806 JP 2003-343370 A

  However, as described above, in the conventional mount structure, the power unit is supported by the engine side mount member on the other end surface of the internal combustion engine of the power unit and the transmission side of the power unit at the tip of the transmission case. Due to the two-point support with the mount member, the section factor of the transmission case in the power unit is significantly smaller than the section factor of the internal combustion engine part, As a result, the bending moment due to the weight and the like of the material acts intensively.

  When various operation wire cables and flexible harnesses are installed in the engine room of the vehicle, the lengths of these cables should be increased to prevent vibrations in the power unit from being transmitted into the vehicle. However, if the length is increased, there is a greater risk of locking or disconnection in the event of a collision. There was a problem that this requires a lot of parts and labor.

  This invention makes it a technical subject to solve these problems at once.

In order to achieve this technical problem, the present invention as described in claim 1,
“A power unit in which a transmission case is joined to one end surface of an internal combustion engine in an engine room of a vehicle, at least an engine-side mount member attached to the internal combustion engine of the power unit, and the transmission case In a mounting device that is mounted by being supported by a transmission-side mounting member,
A reinforcing member is provided between the transmission-side mount member and one end surface of the internal combustion engine, or a joint portion of the transmission case to the internal combustion engine, and the reinforcing member is provided inside the reinforcing member. A passage through which one or both of the various operation wire cables and the flexible harness are inserted is provided so as to extend in the length direction of the reinforcing member. "
It is characterized by that.

  At least a reinforcing member between the transmission-side mount member and one end face of the internal-combustion engine or a joint portion of the transmission case to the internal-combustion engine in the power unit supported by the engine-side mount member and the transmission-side mount member. As a result, the truss having a structure in which the end face of the internal combustion engine or the joint of the transmission case to the internal combustion engine and the mount member on the transmission side is closed by the transmission case and the reinforcing member is formed. Since the power unit can be configured, vibration at the joint portion between the internal combustion engine and the transmission case in the power unit can be greatly reduced.

  On the other hand, since the reinforcing member can be reduced in weight by providing a passage extending in the length direction inside the reinforcing member, an increase in weight due to the provision of the reinforcing member can be reduced.

  In addition, since one or both of the various operation wire cables and the flexible harness are inserted into the passage provided in the reinforcing member, the operation wire cable or the like is in the middle. Since a relatively long part can be supported in a state protected by the reinforcing member, parts and labor for supporting the operation wire cable or the like with respect to the power unit or the vehicle are reduced accordingly. can do.

  Embodiments of the present invention will be described below with reference to the drawings.

  1 and 2, reference numeral 1 denotes a vehicle body frame in a vehicle, and an engine room 2 is formed at a front portion of the vehicle body frame 1.

  On the other hand, reference numeral 3 denotes a power unit comprising an internal combustion engine 4 and a transmission case 5 joined to one end face 4b in the direction of the crank axis 4a of the internal combustion engine 4.

  When the power unit 3 is mounted in the engine room 2 with the crank axis 4a facing sideways in a plan view, the other end surface portion of the internal combustion engine 4 of the power unit 3 is attached to the other end surface. The vehicle body frame 1 is supported by the vehicle body frame 1 via the side mount member 6, while the transmission case 5 of the power unit 3 is supported by the transmission side mount member 7 attached to the upper surface of the transmission case 5. 1 is supported.

  An intake manifold 9 having a throttle valve 8 is attached to the rear longitudinal side of the internal combustion engine 4, and an exhaust manifold 11 having an exhaust turbocharger 10 is attached to the front longitudinal side. A throttle valve 8 in the intake manifold 9 is connected to an accelerator petal 12 provided in the vehicle body frame 1 through an accelerator wire cable 13 so as to be opened and closed by the accelerator petal 12. Needless to say, the accelerator wire cable 13 is composed of a flexible cable conduit and a wire inserted through the flexible cable conduit, as is well known.

  Although not shown, either or both of the internal combustion engine 4 and the transmission case 5 are provided with mount members for restricting rotation between the vehicle body frame 1 and the vehicle body frame 1.

  On the other hand, the transmission case 5 includes a torque converter housing 5a that is joined to one end face 4b of the internal combustion engine 4 and power transmission shafts 16 and 17 to the pair of left and right front wheels 14 and 15. It has.

  Reference numeral 18 denotes a reinforcing member configured in a rod shape, and the reinforcing member 18 is disposed on the upper surface side of the transmission case 5 so as to extend in the direction of the crank axis 4a, and at one end thereof. The fixed flange 19 is fixed to the transmission-side mount member 7 by fastening bolts, and the flange 20 fixed to the other end is fastened to one end surface b of the internal combustion engine 4. For example, a reinforcing member 18 is provided between the transmission-side mount member 7 and the one end surface 4b of the internal combustion engine 4 so as to be connected therebetween.

  The flange 20 at the other end of the reinforcing member 18 is fixed to one end surface 4b of the internal combustion engine 4 with respect to the torque converter housing 5a which is a joint portion to the internal combustion engine 4 in the transmission case 5. Alternatively, it may be configured to be fixed to both the one end surface 4b of the internal combustion engine 4 and the torque converter housing 5a.

  As a result, between the transmission unit mount member 7 and the joint portion of the power unit 3 supported at two points between the one end surface 4b of the internal combustion engine 4 or the transmission case 5 and the internal combustion engine 4, the transmission case 5 Since the truss can be configured to be closed with the reinforcing member 18, vibrations in the joint portion of the power unit 3 between the internal combustion engine 4 and the transmission case 5 can be greatly reduced.

  As shown in FIG. 3, the reinforcing member 18 is formed into a pipe-like hollow body, and a passage 18a is provided in the inside thereof so as to extend in the length direction. The accelerator wire cable is provided in the passage 18a. The middle part of 13 is inserted.

  By making the reinforcing member 18 a hollow body and providing a passage 18a extending in the length direction in the inside thereof, the weight of the reinforcing member 18 can be reduced.

  On the other hand, a state in which a relatively long part of the accelerator wire cable 13 is protected by the reinforcing member 18 by inserting a part of the accelerator wire cable 13 into the passage 18a. Can be supported.

  It should be noted that the insertion of the accelerator wire cable 13 into the passage 18a in the reinforcing member 18 is performed by opening both ends of the reinforcing member 18 or from this portion, or the hole 18b is formed in the reinforcing member 18. It is configured to perform through this hole 18b.

  Further, the reinforcing member 18 is not limited to a hollow body and provided with a passage 18a therein, but the reinforcing member 18 'whose cross section is V-shaped or U-shaped as shown in FIG. As shown in the figure, a C-shaped reinforcing member 18 ″ can be provided so that groove-shaped passages 18a ′ and 18a ″ are provided therein.

  Furthermore, the passage 18a, 18a ', 18a "in the reinforcing members 18, 18', 18" is not limited to the insertion of the accelerator wire cable 13, but instead of this, the clutch wire is also inserted. Various operation wire cables such as cables can be inserted, or flexible harnesses such as various electric wirings or pressure transmission hoses can be inserted.

It is a top view which shows the front part of a vehicle. FIG. 2 is a cross-sectional view taken along the line II-II in FIG. 1. It is a perspective view which shows a reinforcement member. It is a perspective view which shows another reinforcement member. It is sectional drawing which shows another reinforcement member.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Body frame 2 Engine room 3 Power unit 4 Internal combustion engine 4a Crank axis 4b One end surface of the internal combustion engine 4c Other end surface of the internal combustion engine 5 Transmission case 6 Engine side mount member 7 Transmission side mount member 13 Accelerator wire cables 18, 18 ', 18 "reinforcement member 18a, 18a ', 18a" passage

Claims (1)

A power unit formed by joining a transmission case to one end face of an internal combustion engine in an engine room of a vehicle, at least an engine-side mount member attached to the internal combustion engine of the power unit, and a transmission attached to the transmission case In a mounting device that is supported and mounted by a machine-side mounting member,
A reinforcing member is provided between the transmission-side mount member and one end surface of the internal combustion engine, or a joint portion of the transmission case to the internal combustion engine, and the reinforcing member is provided inside the reinforcing member. A mounting apparatus for an internal combustion engine for a vehicle, characterized in that a passage through which one or both of various operation wire cables and flexible harnesses are inserted extends in the length direction of the reinforcing member. .

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