KR-20260067249-A - Automotive cooling pipe integrated oil cooler

Abstract

The present invention relates to an oil cooler with an integrated cooling pipe for automobiles. In the past, since coolant was supplied directly from the radiator to the EGR cooler, a separate hose had to be installed in the narrow engine compartment to connect the radiator and the EGR cooler, making it difficult to secure space and thus reducing workability and productivity. Additionally, as the distance between the radiator and the EGR cooler increased, the hose length became longer, leading to problems with increased component costs. Accordingly, the present invention comprises, in configuring an oil cooler for an automobile, an oil cooler body (200) that cools engine oil with coolant supplied from a water pump; an oil cooler mounting part (210) provided at the bottom of the oil cooler body (200) and mounting the oil cooler body (200) on one side of an oil filter housing (100); a coolant discharge pipe (220) integrally installed in a part of the oil cooler mounting part (210) to supply coolant that has cooled the oil of the oil cooler body (200) to an EGR cooler; and a coolant inlet pipe (230) integrally installed in a part of the oil cooler mounting part (210) to recover the coolant supplied to the EGR cooler. The present invention is a very useful invention that improves workability by installing a coolant discharge pipe (220) and a coolant inlet pipe (230) in the oil cooler mounting part (210) of the oil cooler body (200) and connecting them to the EGR cooler, so that the coolant of the oil cooler body (200) enters the EGR cooler through the coolant discharge pipe (220), circulates to cool the exhaust gas, and then enters the oil cooler body (200) again through the coolant inlet pipe (230), thereby eliminating the need to supply coolant directly from the radiator to the EGR cooler as in the past, and thus eliminating the need to install a hose to connect the radiator and the EGR cooler in a narrow engine room.

Inventors

• 김종란

Assignees

• 김종란

Dates

Publication Date

20260512

Application Date

20241105

Claims (3)

1. In configuring an automotive oil cooler, An oil cooler body (200) that cools engine oil with coolant supplied from a water pump; An oil cooler mounting part (210) provided at the bottom of the oil cooler body (200) and mounting the oil cooler body (200) to one side of the oil filter housing (100); A cooling water discharge pipe (220) integrally installed in a part of the oil cooler mounting part (210) to supply cooling water that has cooled the oil of the oil cooler body (200) to the EGR cooler; A cooling water inlet pipe (230) integrally installed in a part of the oil cooler mounting section (210) to recover the cooling water supplied to the EGR cooler; An automotive oil cooler with an integrated cooling pipe, characterized by being made of
2. In paragraph 1, The oil cooler mounting part (210) is, The oil cooler body (200) is provided with a protruding flange along the lower periphery, A plurality of bolt holes (211) are formed in a protruding flange portion of the oil cooler mounting portion (210) for mounting the oil cooler body (200) to the oil filter housing (100), and An oil cooler with an integrated cooling pipe for automobiles, characterized in that a cooling water hole (212) is formed in another part of the protruding flange of the oil cooler mounting part (210) for installing a cooling water discharge pipe (220) and a cooling water inlet pipe (230) at a certain distance apart.
3. In paragraph 2, A pipe support ring (240) that supports the coolant inlet pipe (230) is installed on the surface of the coolant hole (212) of the oil cooler mounting part (210) into which the coolant inlet pipe (230) is fitted. An oil cooler with an integrated cooling pipe for automobiles, characterized by having a protrusion (250) formed on the outer surface of one end of the cooling water inlet pipe (230) that engages with the pipe support ring (240) so that the entry depth of the cooling water inlet pipe (230) is maintained at a constant level.

Description

Automotive cooling pipe integrated oil cooler The present invention relates to an oil cooler with an integrated cooling pipe for automobiles, and more specifically, to an oil cooler with an integrated cooling pipe for automobiles in which the cooling water required by the exhaust gas recirculation cooler (EGR cooler) is not supplied directly from the radiator, but rather the cooling water supplied to the oil cooler is allowed to enter the EGR cooler, thereby eliminating the need for a connecting hose to connect the radiator and the EGR cooler, thus eliminating the need to secure space for installing the connecting hose in a narrow engine compartment, which improves workability and thereby increases productivity. Generally, friction occurs in the various parts that make up a car engine during operation. To ensure the smooth operation, sealing, and cooling of each friction element, it is necessary to continuously supply lubricating oil; therefore, an oil pump is operated to supply lubricating oil to each part of the engine. However, due to the high temperature generated in various parts of the engine, the temperature of the lubricating oil gradually rises and its viscosity decreases, causing it to lose its function as a lubricant; therefore, the lubricating oil must be continuously cooled. Oil coolers are used to cool lubricating oil, and they are classified into air-cooled and water-cooled types depending on the cooling method. In a water-cooled oil cooler, coolant is supplied from the radiator to cool the engine oil. Meanwhile, automobile exhaust gases contain harmful substances such as carbon monoxide (CO), nitrogen oxides (NOx), and hydrocarbons (HC). Among the three elements generated during the combustion process, nitrogen oxides always have an opposite causal relationship with carbon monoxide and hydrocarbons. In other words, nitrogen oxides are generated most abundantly at the point where carbon monoxide and hydrocarbons are most reduced within the practical output range; furthermore, the amount of nitrogen oxides generated increases as fuel undergoes more complete combustion—that is, as the engine operates at higher temperatures. Therefore, various technologies are being developed to reduce exhaust gases such as nitrogen oxides, and one of them is the exhaust gas recirculation system. An exhaust gas recirculation system is a device used to reduce the generation of nitrogen oxides without a surge in other harmful substances by maintaining the mixture ratio at the stoichiometric air-fuel ratio and supplying a portion of the existing combustion gases into the mixture drawn into the combustion chamber, thereby reducing the amount of fresh gas while simultaneously increasing the thermal capacity of the combustion gases and lowering the flame temperature. In other words, an exhaust gas recirculation system is a device that suppresses the generation of nitrogen oxides by recirculating exhaust gas into the intake system to lower the combustion temperature inside the cylinder. It refers to a device that reduces nitrogen oxides in exhaust gas by returning a portion of the exhaust gas to the intake system to lower the peak temperature when the mixture burns, thereby reducing the amount of nitrogen oxides produced. Accordingly, an EGR cooler is installed in the vehicle, and coolant supplied from the radiator is fed to the EGR cooler to cool the exhaust gas, thereby reducing the generation of nitrogen oxides. FIG. 1 is a perspective view of a key part illustrating a state in which an oil cooler according to the present invention is installed in an oil filter housing. FIG. 2 is a detailed drawing illustrating the state in which an oil cleaner according to the present invention is installed in an oil filter housing. FIG. 3 is a perspective view illustrating an oil cooler according to the present invention. FIG. 4 is a side view of an oil cooler according to the present invention. FIG. 5 is a plan view of an oil cooler according to the present invention. Explanation of symbols for the main parts of the drawing The technical configuration and effects of a preferred embodiment capable of effectively achieving the features of the present invention will be described in detail below with reference to the attached drawings. FIG. 1 is a partial perspective view illustrating the state in which an oil cooler according to the present invention is installed in an oil filter housing, and FIG. 2 is a partial drawing illustrating the state in which an oil cooler according to the present invention is installed in an oil filter housing. FIG. 3 is a perspective view illustrating an oil cooler according to the present invention, FIG. 4 is a side view of an oil cooler according to the present invention, and FIG. 5 is a top view of an oil cooler according to the present invention. The present invention is characterized by comprising: an oil cooler body (200) that cools engine oil with coolant supplied from a water pump; an oil cooler m