JPH051824U - Arrangement structure of cooling water pipe for vehicle - Google Patents

Abstract

(57) [Abstract] [Purpose] To protect the cooling water pipe through which the engine cooling water passes from flying stones and obstacles from the road surface in an integrally combined engine and transmission. [Structure] The cylinder block 3 of the engine 1 and the portion of the transmission 7 on the cylinder block 3 side are connected by a stiffener 10. As a result, a space 14 is formed between the stiffener 10 and the lower portion of the cylinder block 3 and the transmission 7, and the cooling water pipe 8 of the engine 1 is arranged in the space 14. By disposing the cooling water pipe 8 at this position, even if the front wheel scatters small stones or the like, it will not hit.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an arrangement structure for a vehicle cooling water pipe, which can be applied to an automobile or the like equipped with a water-cooled engine.

[0002]

[Prior Art]

 In vehicles such as automobiles, it is common to combine the transmission with the cylinder block part of the engine to form an integral structure (Japanese Utility Model Publication No. 62-29639 and Japanese Utility Model Publication No. 63-73524). Etc.). A stiffener will be used as a member to make this bond stronger and harder. By the way, in many vehicles of the type in which the engine is arranged in the front part of the vehicle body, a part of the engine cooling water pipe passes through the lower part of the transmission.

This will be described with reference to FIG. Reference numeral 1 is an engine, 2 is a cylinder head, 3 is a cylinder block, and 4 is an oil pan. An exhaust manifold 5 is attached to the cylinder block 3, and an exhaust pipe 6 is connected to the end of the exhaust manifold 5. A transmission 7 is firmly connected to the cylinder block 3 by a bolt (not shown). A cooling water pipe 8 through which engine cooling water passes is supported by a retainer 9 at a position below the transmission pipe 7 in the vicinity of the exhaust pipe 6.

[0004]

[Problems to be solved by the device]

 When the cooling water pipe 8 is arranged at such a position, the cooling water pipe naturally protrudes downward from the transmission 7 and thus comes close to the road surface, and the pebbles etc. hit by the front wheels are hit and damaged. There is a risk of Therefore, in order to prevent this, a cover is attached, but a large layout space is required, and the cover attachment structure is complicated, resulting in increased weight and cost.

The present invention is made in view of this point, has a simpler structure than the conventional one, and the cooling water pipe is shielded from the exhaust pipe without being affected by flying stones. It is intended to provide a vehicle cooling pipe arrangement structure that also has a thermal effect.

[0006]

[Means for Solving the Problems]

 As a means for solving the above problems, the present invention is to stiffen a cylinder block side portion of a transmission coupled to an engine cylinder block and a cylinder block with a stiffener to reinforce the stiffener and the lower portion of the cylinder block. A space is formed between the portion and the transmission, and an engine cooling water pipe is arranged in the space.

[0007]

[Action]

 With such a configuration, the cooling water pipe is located in the space formed between the stiffener, the lower portion of the cylinder block, and the transmission, so that even if the front wheels scatter pebbles, etc. . In addition, unlike the case where it is supported at the bottom of the transmission, the height from the road surface is also high, so no protective cover is required.

[0008]

【Example】

 An embodiment of the present invention will be described below with reference to FIGS. 1 to 3 by assigning the same reference numerals to the same members as those in FIG. Between the lower portion of the cylinder block 3 of the engine 1 and the lower portion (bottom portion) of the transmission 7, a stiffener 10 having a shape that obliquely descends from the cylinder block 3 side toward the transmission 7 side is arranged as shown in the figure. The bolt 11 is attached to the cylinder block 3 and the bolt 12 is attached to the transmission 7. As a result, the degree of coupling between the cylinder block 3 and the transmission 7 is reinforced.

As shown in the drawing, the shape of the oil pan 4 is deep on the side opposite the trasmission 7 and shallow on the transmission 7 side, so that the space below the stiffener 10 is provided at the portion where the stiffener 10 is provided. 13 and a space 14 can be obtained above the stiffener 10. A part of the exhaust pipe 6 is arranged in the space 13, and a part of the cooling water pipe 8 is arranged in the space 14. As a result, the cooling water pipe 8 is located in a substantially triangular portion surrounded by the oil pan 4, the transmission 7, and the stiffener 10, and is substantially parallel to the exhaust pipe 6 located below the stiffener 10. In FIG. 3, reference numeral 15 is a radiator, 16 is a cross member of the vehicle body, and 17 is a radiator hose that connects the cooling water pipe 8 and the radiator 15.

The structure of the cooling water pipe for a vehicle thus configured has the stiffener 10 located below the front portion of the cooling water pipe 8 so that the pebbles bounced by the front wheels and obstacles on the road are blocked. The stiffener 10 protects the cooling water pipe 8 against things and the like. Therefore, a cover for protecting the cooling water pipe 8 is not necessary, and the degree of freedom in layout and weight reduction can be achieved.

[0011]

[Effect of the device]

 Since the present invention has the structure for arranging the cooling water pipe for a vehicle configured as described above, the layout of the stiffener and the cooling water pipe allows the stepping stones and obstacles to be attached without attaching a cover or the like to the cooling water pipe. Will be able to protect the cooling water pipe. In addition, the stiffener can obtain the heat shield effect from the exhaust pipe. By arranging the cooling water pipe in such a layout, the length of the cooling water pipe can be shortened as compared with the conventional transmission that passes through the lower part, so that weight and cost can be reduced. You will be able to

[Brief description of drawings]

FIG. 1 is a front view of an embodiment of the present invention.

FIG. 2 is an enlarged front view of a main part of FIG.

FIG. 3 is a side view of FIG. 2 viewed from the direction of arrow A.

FIG. 4 is a front view showing an arrangement structure of a conventional vehicle cooling water pipe.

[Explanation of symbols]

 1 Engine 3 Cylinder Block 4 Oil Pan 6 Exhaust Manifold 7 Transmission 8 Cooling Water Pipe 10 Stiffener 14 Space

Claims (1)

Claims for utility model registration 1. A portion of the transmission connected to a cylinder block of an engine, which is on the cylinder block side, and a cylinder block are joined together by a stiffener to reinforce the stiffener, a lower portion of the cylinder block, and a transmission. A cooling water pipe arrangement structure for a vehicle, characterized in that a space is formed between the cooling water pipe and the engine cooling water pipe.