High-temperature-resistant combined type intercooler of diesel engine

Abstract

The invention provides a high-temperature-resistant combined type intercooler of a diesel engine. The high-temperature-resistant combined type intercooler comprises a high-temperature-resistant intercooler core assembly, an integrated sealing gasket and an aluminum intercooler core assembly. The high-temperature-resistant intercooler core assembly is connected with the aluminum intercooler core assembly, an integrated sealing gasket is arranged between the high-temperature-resistant intercooler core assembly and the aluminum intercooler core assembly, an air inlet assembly is arranged on the upper portion of the high-temperature-resistant intercooler core assembly, and an air outlet assembly is arranged at the bottom of the aluminum intercooler core assembly. Compared with a traditional intercooler, the intercooler effectively solves the problems that the post-compression temperature of a high-strength diesel engine supercharger is continuously increased, and the performance and strength of the intercooler are reduced, and the design requirement for power environment adaptability of special vehicles is met.

Description

Technical Field

[0001] The invention belongs to the technical field of diesel engine supercharging and intercooling, and in particular relates to a high temperature resistant combined intercooler for a diesel engine. Background Art

[0002] Modern high-power diesel engines generally use turbocharged intercooler technology to improve diesel engine power performance, reduce diesel engine heat load, and improve diesel engine emissions. As a device that cools the turbocharged air before it enters the cylinder, the intercooler is an indispensable part of the normal operation of the turbocharged diesel engine.

[0003] With the continuous improvement of the power density of special vehicles, the temperature after the supercharger is compressed increases, that is, the intake temperature of the intercooler is constantly increasing. Especially in the plateau environment, the air volume is reduced, the temperature after the supercharger is compressed increases significantly, the engine performance decreases, the strength of the intercooler intake side decreases, and the temperature at the intake end of the intercooler core exceeds the applicable temperature of the material. The existing special vehicle diesel engine intercooler structure can no longer meet the design requirements. Titanium alloy intercoolers and stainless steel intercoolers can meet the high temperature resistance requirements, but they are heavy and costly, and do not meet the development needs of lightweight high-strength diesel engines. The present invention designs a diesel engine high temperature resistant combined intercooler. The high temperature and high pressure air after supercharging enters the air intake cover of the integrated cooling cavity. After being cooled by the high temperature resistant intercooler core assembly, the temperature of the high temperature and high pressure air is reduced to reach the applicable temperature of the aluminum intercooler core assembly. Therefore, the present invention designs a diesel engine high temperature resistant combined intercooler, which not only meets the special vehicle power environment adaptability and lightweight requirements, but also controls the cost within a reasonable range. Invention content In view of this, the present invention aims to provide a high temperature resistant combined intercooler for a diesel engine to solve at least one technical problem in the background technology.

[0005] To achieve the above object, the technical solution created by the present invention is implemented as follows: A high temperature resistant combined intercooler for a diesel engine, comprising a high temperature resistant intercooler core assembly, an integrated sealing gasket, and an aluminum intercooler core assembly; The high temperature resistant intercooler core assembly is connected to the aluminum intercooler core assembly, an integrated sealing gasket is arranged between the high temperature resistant intercooler core assembly and the aluminum intercooler core assembly, an air inlet assembly is arranged on the upper part of the high temperature resistant intercooler core assembly, and an air outlet assembly is arranged on the bottom of the aluminum intercooler core assembly. The integrated sealing gasket seals the coolant side and the high temperature and high pressure air side respectively.

[0006] Furthermore, the high temperature resistant intercooler core assembly includes a high temperature resistant material water inlet chamber, a high temperature resistant material water outlet chamber, and a high temperature resistant core body; the high temperature resistant material water inlet chamber and the high temperature resistant material water outlet chamber are connected and are arranged on both sides of the high temperature resistant core body.

[0007] The high temperature resistant material of the high temperature resistant material water inlet chamber and the high temperature resistant material water outlet chamber is titanium alloy or stainless steel.

[0008] Furthermore, the aluminum intercooler core assembly includes an aluminum core body, an aluminum water inlet chamber, and an aluminum water outlet chamber; the aluminum core body is a brazed plate-fin structure.

[0009] The aluminum water inlet chamber and the aluminum water outlet chamber are communicated, and the aluminum water inlet chamber and the aluminum water outlet chamber are arranged on both sides of the aluminum core body.

[0010] Further, the aluminum water inlet chamber, the high temperature resistant material water inlet chamber and the integrated sealing gasket together form a combined intercooler core water inlet chamber; The aluminum water outlet chamber, the high temperature resistant material water outlet chamber and the integrated sealing gasket together form a combined intercooler core water outlet cavity.

[0011] Furthermore, the aluminum water inlet chamber is provided with an intercooler water inlet, and the aluminum water outlet chamber is provided with an intercooler water outlet; The coolant enters the water inlet cavity of the combined intercooler core through the intercooler water inlet, and flows through the high temperature resistant core and the aluminum core to cool the high temperature and high pressure air, and then converges into the water outlet cavity of the combined intercooler core and flows out from the intercooler water outlet.

[0012] Furthermore, the high temperature resistant intercooler core assembly, the integrated sealing gasket, and the aluminum intercooler core assembly are connected by through bolts.

[0013] Further, the air intake assembly includes an intercooler air intake cover and an air intake cover sealing gasket; There are several air intake channels on the high temperature resistant core and the aluminum core, and the air intake duct runs through the high temperature resistant intercooler core assembly and the aluminum intercooler core assembly; An air intake cover sealing gasket is arranged between the intercooler air intake cover and the high temperature resistant intercooler core assembly.

[0014] Furthermore, the upper part of the intercooler air intake cover is inclined, and an intercooler air intake port is provided on one side of the intercooler air intake cover; the air intake port is communicated with the air intake passage.

[0015] The intercooler air intake cover is provided with an air intake cover water inlet and an air intake cover water outlet to prevent the intercooler air intake cover wall temperature from being too high. The supercharged high-temperature and high-pressure air passes through the intercooler air intake and enters the intercooler air intake cover, flows through the high-temperature resistant core and the aluminum core in turn for cooling, and then flows out through the air outlet assembly.

[0016] The positions of the air intake hood water inlet and the air intake hood water outlet can be adjusted according to the actual structural layout, and the positions of the intercooler water inlet and the intercooler water outlet can be adjusted according to the actual intercooler core process conditions.

[0017] Furthermore, the air outlet assembly includes an air outlet cover sealing pad and an intercooler air outlet cover; the air outlet cover sealing pad is arranged between the aluminum intercooler core and the intercooler air outlet cover; the intercooler air outlet is provided on the intercooler air outlet cover, and the intercooler air outlet is connected to the air intake channel.

[0018] Compared with the prior art, the high temperature resistant combined intercooler for diesel engine created by the present invention has the following advantages: (1) Compared with the traditional intercooler, the present invention effectively solves the problem of the continuous increase in the temperature after compression of the high-strength diesel engine supercharger and the decrease in the performance and strength of the intercooler, and meets the design requirements of the adaptability of special vehicle power environment.

[0019] (2) The intercooler of the present invention is designed by combining a high temperature resistant intercooler core assembly and an aluminum brazed intercooler core, and has a compact structure. The weight and cost of the intercooler are controlled within a reasonable range. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings constituting part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments and descriptions of the present invention are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0021] Figure 1 A schematic diagram of a high temperature resistant combined intercooler for a diesel engine according to an embodiment of the present invention; Figure 2 The internal schematic diagram of the high temperature resistant combined intercooler for a diesel engine described in an embodiment of the present invention.

[0022] Description of reference numerals: 1. Intercooler air intake cover; 2. Air intake cover gasket; 3. High temperature resistant intercooler core assembly; 4. Integrated gasket; 5. Aluminum intercooler core assembly; 6. Air outlet cover gasket; 7. Intercooler air outlet cover; 8. Through bolts; 9. Fastening bolts and nuts; 10. High temperature resistant material water inlet chamber; 11. High temperature resistant core; 12. High temperature resistant material water outlet chamber; 13. Aluminum water inlet chamber; 14. Aluminum core; 15. Aluminum water outlet chamber; a. Intercooler air inlet; b. Intercooler air outlet; c. Intercooler water inlet; d. Intercooler water outlet; e. Combined intercooler core water inlet chamber; f. Combined intercooler core water outlet chamber; g. Air intake cover water inlet; h. Air intake cover water outlet; i. Integrated cooling chamber. DETAILED DESCRIPTION

[0023] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0024] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0025] Example 1 like Figure 1 to Figure 2 As shown, a diesel engine high temperature resistant combined intercooler includes an intercooler air intake cover 1, an air intake cover gasket 2, a high temperature resistant intercooler core assembly 3, an integrated gasket 4, an aluminum intercooler core assembly 5, an air outlet cover gasket 6, an intercooler air outlet cover 7, a through bolt 8, a fastening bolt nut 9, a high temperature resistant material water inlet chamber 10, a high temperature resistant core body 11, a high temperature resistant material water outlet chamber 12, an aluminum water inlet chamber 13, an aluminum core body 14, and an aluminum water outlet chamber 15. Intercooler air inlet a, intercooler air outlet b, intercooler water inlet c, intercooler water outlet d, combined intercooler core water inlet cavity e, combined intercooler core water outlet cavity f, air intake cover water inlet g, air intake cover water outlet h, and integrated cooling cavity i.

[0026] A high temperature resistant combined intercooler for a diesel engine is assembled by an intercooler air intake cover 1, an air intake cover sealing gasket 2, a high temperature resistant intercooler core assembly 3, an integrated sealing gasket 4, an aluminum intercooler core assembly 5, an air outlet cover sealing gasket 6 and an intercooler air outlet cover 7, through bolts 8 and fastening bolts and nuts 9.

[0027] The high temperature resistant intercooler core assembly 3 is composed of a high temperature resistant material water inlet chamber 10 and a high temperature resistant material water outlet chamber 12 welded on a high temperature resistant core body 11, and the high temperature resistant material is selected from titanium alloy or stainless steel; The aluminum intercooler core assembly 5 is composed of an aluminum water inlet chamber 13 and an aluminum water outlet chamber 15 welded to an aluminum core body 14. The aluminum core body 14 can adopt a brazed plate-fin structure.

[0028] The high temperature resistant intercooler core assembly 3, the integrated sealing gasket 4 and the aluminum intercooler core assembly 5 are assembled into the diesel engine high temperature resistant combined intercooler of this application by means of through bolts 8 and fastening bolt nuts 9.

[0029] The integrated sealing gasket 4 seals the coolant side and the high-temperature and high-pressure air side respectively.

[0030] The combined intercooler core water inlet chamber e is composed of a high temperature resistant material water inlet chamber 10, an aluminum water inlet chamber 13 and an integrated sealing gasket 4, and the combined intercooler core water outlet chamber f is composed of a high temperature resistant material water outlet chamber 12, an aluminum water outlet chamber 15 and an integrated sealing gasket 4.

[0031] The supercharged high-temperature and high-pressure air enters the intercooler air intake cover 1 through the intercooler air intake port a, flows through the high-temperature resistant core 11 and the aluminum core 14 in turn for cooling, and then flows out through the intercooler air outlet cover 7 from the two intercooler air outlet ports b. One channel of coolant enters the integrated cooling chamber i from the air intake cover water inlet port g, and flows out from the air intake cover water outlet port h to prevent the intercooler air intake cover wall temperature from being too high. One channel of coolant enters the combined intercooler core water inlet chamber e through the intercooler water inlet port c, flows through the high-temperature resistant core 11 and the aluminum core 14 to cool the high-temperature and high-pressure air, and then merges into the combined intercooler core water outlet chamber f, and flows out from the intercooler water outlet d. The positions of the air intake cover water inlet port g and the air intake cover water outlet h can be adjusted according to the actual structural layout, and the positions of the intercooler water inlet port c and the intercooler water outlet d can be adjusted according to the actual intercooler core process conditions.

[0032] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A high temperature resistant combined intercooler for a diesel engine, characterized in that: Includes high temperature resistant intercooler core assembly, integrated gasket, aluminum intercooler core assembly; The high temperature resistant intercooler core assembly is connected to the aluminum intercooler core assembly, an integrated sealing gasket is arranged between the high temperature resistant intercooler core assembly and the aluminum intercooler core assembly, an air intake assembly is arranged on the top of the high temperature resistant intercooler core assembly, and an air outlet assembly is arranged on the bottom of the aluminum intercooler core assembly.

2. A diesel engine high temperature resistant combined intercooler according to claim 1, characterized in that: The high temperature resistant intercooler core assembly includes a high temperature resistant material water inlet chamber, a high temperature resistant material water outlet chamber, and a high temperature resistant core body; the high temperature resistant material water inlet chamber and the high temperature resistant material water outlet chamber are connected and are arranged on both sides of the high temperature resistant core body.

3. A diesel engine high temperature resistant combined intercooler according to claim 2, characterized in that: The aluminum intercooler core assembly includes an aluminum core, an aluminum water inlet chamber, and an aluminum water outlet chamber; The aluminum water inlet chamber and the aluminum water outlet chamber are communicated, and the aluminum water inlet chamber and the aluminum water outlet chamber are arranged on both sides of the aluminum core body.

4. A diesel engine high temperature resistant combined intercooler according to claim 2, characterized in that: The aluminum water inlet chamber, the high temperature resistant material water inlet chamber and the integrated sealing gasket together form the combined intercooler core water inlet chamber; The aluminum water outlet chamber, the high temperature resistant material water outlet chamber and the integrated sealing gasket together form a combined intercooler core water outlet cavity.

5. A diesel engine high temperature resistant combined intercooler according to claim 4, characterized in that: The aluminum water inlet chamber is provided with an intercooler water inlet, and the aluminum water outlet chamber is provided with an intercooler water outlet; The coolant enters the water inlet cavity of the combined intercooler core through the intercooler water inlet, and flows through the high temperature resistant core and the aluminum core to cool the high temperature and high pressure air, and then converges into the water outlet cavity of the combined intercooler core and flows out from the intercooler water outlet.

6. A diesel engine high temperature resistant combined intercooler according to claim 1, characterized in that: The high temperature resistant intercooler core assembly, the integrated sealing gasket, and the aluminum intercooler core assembly are connected by through bolts.

7. A diesel engine high temperature resistant combined intercooler according to claim 1, characterized in that: The air intake assembly includes the intercooler air intake cover and the air intake cover gasket; There are several air intake channels on the high temperature resistant core and the aluminum core, and the air intake duct runs through the high temperature resistant intercooler core assembly and the aluminum intercooler core assembly; An air intake cover sealing gasket is arranged between the intercooler air intake cover and the high temperature resistant intercooler core assembly.

8. A diesel engine high temperature resistant combined intercooler according to claim 7, characterized in that: The upper part of the intercooler air intake cover is inclined, and one side of the intercooler air intake cover is provided with an intercooler air intake port, and the air intake port is communicated with the air intake channel.

9. A diesel engine high temperature resistant combined intercooler according to claim 7, characterized in that: An air inlet and an air outlet are provided inside the intercooler air inlet cover. The supercharged high-temperature and high-pressure air passes through the intercooler air inlet and enters the intercooler air inlet cover, flows through the air inlet channels of the high-temperature resistant core and the aluminum core in turn for cooling, and then flows out through the air outlet assembly.

10. A diesel engine high temperature resistant combined intercooler according to claim 7, characterized in that: The air outlet assembly includes the air outlet cover gasket and the intercooler air outlet cover. The air outlet cover sealing pad is arranged between the aluminum intercooler core and the intercooler air outlet cover; the intercooler air outlet is arranged on the intercooler air outlet cover, and the intercooler air outlet is communicated with the air inlet channel.

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