JPH1151595A - Radiator cleaning apparatus for industrial vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a radiator cleaning apparatus of a low cost for conveniently cleaning a radiator, by utilizing engine power of an engine type industrial vehicle such as a fork lift truck without disassembling a vehicle body cleaning by a manual work, and using a net screen in the vehicle. SOLUTION: A fan 3 is installed at a rear portion of an engine 2. And, a radiator 5 is installed at further rear. A shroud 4 is provided between the fan 3 and the radiator 5 to efficiently bring the air from the fan 3 into contact with the radiator 5 without leaking. A nozzle 7 is projected at an upper surface of an inner vent duct of the shroud 4 to inject cleanser into the duct. A water guide tube 8 is connected to an outer end of the nozzle 7 out of the shroud 4, and its other end is extended out of a vehicle body 1. An opening/closing cock 9 is mounted at an end of the tube 8, and further a water supply port 10 for inputting the cleanser is continuously provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for cleaning a radiator for cooling heated engine cooling water in an engine-type industrial vehicle such as a forklift.

[0002]

2. Description of the Related Art In an engine-type industrial vehicle such as a forklift, cooling of engine cooling water that absorbs heat of an engine is performed by cooling a relatively low temperature of external air from around the vehicle body through a ventilation hole by rotation of a fan disposed at the rear of the engine. In general, a system is used in which the heating and cooling water circulating inside the radiator is heat-exchanged to perform cooling by sucking the air and applying the air to a radiator located further rearward. In addition, a shroud is provided between the fan and the radiator so as to surround the ventilation path so that air can be sent efficiently, and a radiator plate in the form of a thin plate (for example, corrugated) is provided on the front surface of the radiator to improve heat radiation efficiency. Are laminated.

[0003] The gap between the thin plates is narrow, and dust and dirt are liable to be clogged in the gap due to the working environment and working conditions in which the industrial vehicle is used. Cleaning of the radiator was necessary for the purpose of maintaining performance.

[0004] Conventionally, in the case of the industrial vehicle, a shroud is attached to the front of the radiator, and a vehicle balance weight is fixed to the vehicle body behind the radiator. Only after the disassembly / removal operation, the heat radiation surface of the radiator can be manually cleaned with a brush or the like.

There is also a method in which a net screen is detachably inserted into a radiator front shroud, and only the net screen is washed.

[0006]

As described above, in cleaning a radiator of an industrial vehicle, it is not easy to directly clean the radiator manually after disassembling and removing the vehicle, and it is relatively long during periodic inspections. There was a problem that it could only be done at time intervals.

When a net screen is used, there is a drawback that the net screen hinders ventilation from a fan during normal operation, and the cooling efficiency for the radiator is reduced.

SUMMARY OF THE INVENTION In view of the above-mentioned conventional problems, an object of the present invention is to use a radiator simply by using the engine power of a vehicle without using a net screen and without disassembling and manually cleaning the vehicle body. It is an object to provide an inexpensive cleaning device that can perform cleaning.

[0009]

SUMMARY OF THE INVENTION The present invention is to solve the above-mentioned problems, and is constituted as follows. A first aspect of the present invention is a radiator apparatus including a fan driven by vehicle power to send cool air, and a shroud installed to surround a ventilation path between the fan and the radiator for efficiently blowing the cool air. Applied to

[0010] A nozzle connected to a water guide pipe for transferring the cleaning liquid is disposed so as to inject the cleaning liquid into the ventilation passage in the shroud.
By causing the cleaning liquid to flow out of the nozzle into the cooling air flowing through the shroud, the cleaning liquid can be sprayed in the state of a jet stream, and the desired radiator can be cleaned.

Also, for example, a plurality of the nozzles are arranged on the shroud so as to surround the periphery of the ventilation path. As a result, the cleaning liquid can be evenly injected into the air passage, so that it is possible to spray and clean the radiator heat radiation surface evenly.

Further, the invention according to claim 4 has a configuration in which the supply amount of the cleaning liquid to the nozzle can be adjusted by providing an opening / closing cock at the liquid supply side end of the water pipe.

[0013] Further, the invention according to claim 5 is characterized in that the nozzle and the water guide pipe are integrally formed inside the shroud and provided, so that the operation of the cleaning device is improved as compared with the case where the nozzle and the water pipe are assembled as separate parts. It is possible to reduce vibrations in the inside, and it is possible to handle the module as a module, which facilitates replacement and maintenance.

[0014]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a side sectional view of an industrial vehicle equipped with a radiator cleaning device according to a first embodiment of the present invention. In this figure, a fan 3 is installed at a rear portion of an engine 2 which is a vehicle power, and a radiator 5 for cooling engine cooling water to be washed is installed further behind. In the meantime, a shroud 4 surrounding the ventilation passage is provided so that air from the fan 3 can be efficiently applied to the radiator 5 without leaking. A nozzle 7 is protruded from the upper surface of the internal ventilation passage of the shroud 4 surrounding the ventilation passage so that the cleaning liquid can be injected into the ventilation passage. A water pipe 8 for transferring the cleaning liquid to the nozzle is connected to an outer end of the nozzle 7 outside the shroud 4, and the other end extends to the outside of the vehicle body 1. Water pipe 8
An opening / closing cock 9 is attached to an end of the water supply port, and a water supply port 10 for taking in a cleaning liquid is provided continuously. In addition, a weight 6 having an exhaust hole formed at the center thereof so as to discharge a gas which has passed through the radiator 5 and has been heated by heat exchange.
Is installed immediately after the radiator 5 at the rearmost position of the vehicle.

The operation of the cleaning apparatus having the above configuration will be described below. First, the cleaning liquid is supplied to the water supply port 10 by connecting a hose or the like while the opening / closing cock 9 is closed. When the engine 2 is started, the fan 3 starts to rotate, and external air having a relatively low temperature is sucked in from the periphery of the vehicle body 1 through the ventilation holes by the fan 3, and the shroud 4 has a considerable wind pressure and wind speed.
And is applied to the radiator 5 as cooling air.
At this time, by opening the opening / closing cock 9, the cleaning liquid flows through the water guide pipe 8, reaches the nozzle 7, and is injected into the shroud 4. Here, since the air blown in the shroud 4 has a considerable wind pressure, the cleaning liquid is sprayed onto the radiator 5 in a jet flow state, and ideal cleaning is performed on the radiator radiation surface. According to the third aspect of the present invention, the supply amount of the cleaning liquid can be adjusted by the opening and closing amount of the opening / closing cock 9, and the air pressure and the air volume from the fan 3 can be adjusted by controlling the engine speed with an accelerator pedal (not shown). Becomes

FIG. 2 is a front view of a radiator cleaning apparatus according to a second embodiment of the present invention. As shown in this drawing, in the second embodiment, eight nozzles 7 attached to the upper part of the shroud 4 in the first embodiment are arranged on the shroud 4 so as to surround the ventilation path in the second embodiment. Becomes As a result, the cleaning liquid can be evenly injected into the air passage, so that it is possible to spray and clean the radiator heat radiation surface evenly.

In the above embodiment, only the opening / closing cock for adjusting the supply amount of the cleaning liquid is provided on the vehicle side, but such an opening / closing cock is necessarily provided on the vehicle side. Instead, for example, the supply amount of the cleaning liquid may be adjusted on the side supplying the cleaning liquid outside the vehicle.

Further, the number and arrangement of the nozzles for injecting the cleaning liquid are not limited to those in the above embodiment, and various forms can be adopted as long as the radiator can be effectively cleaned.

For example, the nozzles may be provided not on the upper side but on the lower side or only on the side, or the number may be 2 to 7, or 9 or more. Further, based on the invention described in claim 5, the nozzle and the water guide pipe may be provided integrally with the inside of the shroud. In this case, the vibration during the operation of the cleaning device can be reduced as compared with a case where each of the components is assembled as a separate component, and each component is further treated as an integrated module. Replacement and maintenance are facilitated.

The nozzle can be applied in various forms such as a shower, a mist, and a single shot. Further, the injection direction of the nozzle is not limited to the direction perpendicular to the inside of the shroud, and may be inclined toward the fan or the radiator. Further, the injection direction of the nozzle may be adjustable for each nozzle.

Alternatively, the nozzle may simply surround the pipe from the water pipe to the inner periphery of the shroud, and the pipe may be provided with an injection port. Further, the portion extending from the water pipe to the nozzle may be integrally formed inside the shroud itself.

Further, the supply port does not necessarily need to be provided in the upper part of the vehicle body, and can be appropriately provided, for example, in a side part of the vehicle body, a lower part of the vehicle body, or a front part of the vehicle body. Also, a drainage channel structure may be provided below the radiator so that drainage after washing can be performed efficiently.

The number of water pipes is not limited to one but may be two or more, or one or more water pipes may be connected to one nozzle. Further, the nozzle may be separately attached to one of the side surfaces instead of the inside of the shroud body.

In a structure without a shroud, a nozzle capable of spraying a cleaning liquid may be provided between the fan and the radiator. In this case, the nozzle is fixed, for example, to a radiator or a vehicle body via a bracket.

As the cleaning liquid, not only water but also various liquids having a cleaning action, such as a solvent such as alcohol, a mixture of these with a cleaning component, or a liquid composed of only a cleaning component can be used. It is.

[0026]

By adopting the construction described in detail above, the present invention makes it possible to reduce the cooling efficiency of the radiator without using a net screen, and to disassemble and remove it, as compared with the conventional method. The radiator can be cleaned frequently and easily by not requiring the radiator, and the effective (ideal) cleaning of the fine radiator radiating surface can be performed, so that the high engine cooling efficiency can always be maintained. Therefore, it is always effective in maintaining high engine efficiency and extending the life of the engine.

[0027]

[Brief description of the drawings]

[0028]

FIG. 1 is a side sectional view of an industrial vehicle equipped with a radiator cleaning device according to a first embodiment of the present invention;

[0029]

FIG. 2 is a front view of a radiator cleaning device according to a second embodiment of the present invention.

[0030]

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Body 2 Engine 3 Fan 4 Shroud 5 Radiator 6 Weight 7 Nozzle 8 Water pipe 9 Opening cock 10 Water supply port

Claims (5)

[Claims] 1. An industrial vehicle including a radiator for cooling engine cooling water and a fan for blowing air to the radiator, wherein a nozzle disposed to inject a cleaning liquid between the fan and the radiator; A radiator cleaning device, comprising: a water pipe for transferring a cleaning liquid to a nozzle. 2. Between the fan and the radiator,
The radiator cleaning device according to claim 1, wherein a shroud is provided so as to surround an air passage that is blown by the fan. 3. The radiator cleaning apparatus according to claim 2, wherein a plurality of the nozzles are provided on the shroud so as to surround a periphery of the ventilation path. 4. The radiator cleaning apparatus according to claim 1, further comprising an opening / closing cock for adjusting a supply amount of the cleaning liquid to the nozzle. 5. The radiator cleaning apparatus according to claim 3, wherein the nozzle and the water pipe are integrally formed and provided inside the shroud.