EXHAUST COOLING APPARATUS FOR CONSTRUCTION EQUIPMENT
An exhaust cooling apparatus for construction equipment, having a cooling fan taking external air into an engine room for heat exchange with a oil cooler and a radiator, and a blower flowing air out of the engine room to the atmosphere. In the apparatus, an outlet of an exhaust pipe for emitting exhaust gas from an engine is fixedly disposed toward a discharge direction of the blower. The discharge direction of the blower is upwardly vertical to the ground. The exhaust cooling apparatus is effective in preventing combustible matters from burning, or preventing plant lives from withering, due to hot exhaust gas around construction equipment such as excavator, by discharging the hot exhaust gas to the atmosphere after cooling it down through air flowing out of the engine room.
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This application is based on and claims priority to Korean Patent Application No. 10-2008-0120229, filed on Dec. 1, 2008, in the Korean Intellectual Property Office, the disclosure of which is incorporated herein in its entirety by reference.
FIELD OF THE DISCLOSUREExemplary embodiments relate to an exhaust cooling apparatus capable of discharging exhaust gas from an engine of construction equipment to the atmosphere after cooling it down. More particularly, exemplary embodiments relate to an exhaust cooling apparatus for construction equipment, which sends exhaust gas to the atmosphere after cooling it down. In this disclosure, hot exhaust gas (about 1000° C.) emitted through an exhaust pipe from an engine of construction equipment such as excavator is mixed with air flowing out of an engine room and then cooled down in temperature.
BACKGROUND OF THE DISCLOSUREExhaust gas discharged from an engine of heavy construction equipment such as excavator contains various kinds of harmful ingredients that may incur atmospheric pollution. For that reason, temperature of exhaust gas emitted from an engine is regularized on the level about 1000° C. on the legal standards (Tier 4, Step 4, etc.).
Hot exhaust gas discharged to the atmosphere from an engine of construction equipment such as excavator, without removing or diminishing its toxicity, is easy to badly affect buildings or plant lives around the equipment, e.g., causing combustible matters to burn or plant lives to wither.
As shown in
In the meantime, referring to
In
With this organization, during work of the engine 14, external air is introduced into the engine room 4 through rotation of the radiator fan 18 that is driven by the hydraulic motor M. Such external air taken into the engine room 4 is helpful to cooling down the coolant of the engine 4 by passing trough the radiator for heat exchange.
Meantime, the oil cooler fan 17 rotated by the hydraulic motor M introduces external air into the engine room 4. The external air, which is taken into the engine room 4, passes through the oil cooler 16 for heat exchange and then cools down hydraulic fluid that returns to the hydraulic tank from the actuators.
The external air introduced into the engine room 4 by rotations of the oil cooler fan 17 and the radiator fan 18 is discharged to the outside (i.e., to the atmosphere) by rotation of the blower 19, which is installed on the upper part of the engine room 4, after passing through the oil cooler 16 and the radiator 20.
In the cooling system aforementioned, the exhaust pipe 13, which emits exhaust gas from the engine 14 by way of the muffler 15, is disposed toward the rear of the excavator 13. Owing to such disposition of the exhaust pipe 13, exhaust gas of hot temperature could inadvertently harm or damage buildings or plant lives which are placed around the rear of the excavator.
SUMMARY OF THE DISCLOSUREAccordingly, the exemplary embodiments have been made to solve the above-mentioned problems occurring in the prior art while advantages achieved by the prior art are maintained intact.
Exemplary embodiments of the present disclosure are directed to an exhaust cooling apparatus, for construction equipment, capable of preventing combustible matters, which are placed around the construction equipment such as excavator, from burning by hot exhaust gas. The final exhaust gas is discharged to the atmosphere after being cooled down, for which gas emitted from an engine through an exhaust pipe is mixed with air flowing out of an engine room through a blower.
In an embodiment, there is provided an exhaust cooling apparatus for construction equipment having: a cooling fan taking external air into an engine room for heat exchange with an oil cooler and a radiator; and a blower flowing air from the engine room into the atmosphere. In the exhaust cooling apparatus, an outlet of an exhaust pipe for emitting exhaust gas from an engine may be fixedly disposed toward a discharge direction of the blower.
In this embodiment, the discharge direction of the blower may be upwardly vertical to the ground.
The above and other objects, features and advantages of the present disclosure will be more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which:
Hereinafter, exemplary embodiments of the present disclosure will be described in conjunction with the accompanying drawings. The matters defined in the description, such as the detailed construction and elements, are nothing but specific details provided to assist those of ordinary skill in the art in a comprehensive understanding of the disclosure, and thus the present disclosure is not limited thereto. The same reference numerals are used for the same elements throughout the accompanying drawings.
Referring to
The discharge direction of the blower 19 is upwardly vertical to the ground.
Except the exhaust pipe 13 installed to cool down exhaust gas by mixing the exhaust gas, which is emitted from the engine 14 through the exhaust pipe 13, with air flowing out of the engine room 4 by the blower 19, the exhaust cooling apparatus shown
Hereinafter, an operative condition of the exhaust cooling apparatus for construction equipment will be described with reference to
As illustrated in
During this, as shown in
As a result, it is able to cool down the finally discharged exhaust gas in temperature by mixing the hot exhaust gas (about 1000° C.) with air (about 70° C. by heat exchange through the radiator 20 and the oil cooler 16) that flows out of the engine room 4.
Summarily, hot exhaust gas emitted through the exhaust pipe 13 is cooled down in temperature after mixing with air flowing out of the engine room 4 through the blower 19. Then, the cooled-down exhaust gas can be discharged to the atmosphere away from the ground as the discharge direction of the blower 19 is looking upward (see
Therefore, even when there are buildings or combustible matters over the excavator, it is possible to prevent a fire because exhaust gas from the engine 14 is discharged to the atmosphere in cool temperature. Moreover, even when the excavator is working under plant lives, it prevents the plant lives from withering due to hot and harmful exhaust gas.
As described above, the exhaust cooling apparatus for construction equipment according to this embodiment of the present disclosure is effective in preventing combustible matters from burning, or preventing plants from withering, due to hot exhaust gas around construction equipment such as excavator, by discharging the hot exhaust gas to the atmosphere after cooling it down by means of air flowing out of the engine room.
Although exemplary embodiments of the present disclosure have been described for illustrative purposes, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the disclosure as disclosed in the accompanying claims.
Claims
1. An exhaust cooling apparatus for construction equipment having: a cooling fan taking external air into an engine room for heat exchange with an oil cooler and a radiator; and a blower flowing air out of the engine room to the atmosphere, wherein an outlet of an exhaust pipe is fixedly disposed toward a discharge direction of the blower so as to emit exhaust gas from an engine.
2. The exhaust cooling apparatus of claim 1, wherein the discharge direction of the blower is upwardly vertical to the ground.
Type: Application
Filed: Dec 1, 2009
Publication Date: Jun 3, 2010
Applicant:
Inventors: Toshimichi IKEDA (Changwon), Hoy Jong Jun (Masan), Chan Ju Na (Changwon)
Application Number: 12/628,909
International Classification: F01N 3/02 (20060101);