JPH0473787U

JPH0473787U -

Info

Publication number: JPH0473787U
Application number: JP11037690U
Authority: JP
Priority date: 1990-10-22
Filing date: 1990-10-22
Publication date: 1992-06-29

Description

[Brief explanation of drawings]

第１図は請求項１の一実施例に係るアルミニウ
ム製二重管型オイルクーラの要部を示す断面図で
ある。第２図は請求項２の一実施例に係るアルミ
ニウム製二重管型オイルクーラの要部を示す断面
図である。第３図は従来のアルミニウム製二重管
型オイルクーラの要部を示す断面図である。主要な部分の符号の説明、２……二重管、２１
……アウタパイプ、２２……インナーパイプ、２
３……油路、２４……インナーフイン、３……シ
ート、３４……孔、３４……切欠部、４……イン
・アウトパイプ、５……タンク、５２……Ｏ−リ
ング、７，８……凹部、２０，３０……アルミニ
ウム製二重管型オイルクーラ。 FIG. 1 is a sectional view showing a main part of an aluminum double-tube oil cooler according to an embodiment of the present invention. FIG. 2 is a sectional view showing a main part of an aluminum double pipe oil cooler according to an embodiment of the present invention. FIG. 3 is a sectional view showing the main parts of a conventional aluminum double-tube oil cooler. Explanation of symbols of main parts, 2...double pipe, 21
...Outer pipe, 22 ...Inner pipe, 2
3... Oil passage, 24... Inner fin, 3... Seat, 34... Hole, 34... Notch, 4... In/out pipe, 5... Tank, 52... O-ring, 7, 8... recess, 20, 30... aluminum double pipe oil cooler.

Claims

[Scope of Claim for Utility Model Registration] (1) Consisting of an outer pipe and an inner pipe, an oil passage is formed between the two pipes, and the outer parts of each of the outer pipe and the inner pipe flow in the tank of a heat exchanger such as a radiator. A double pipe is attached to both ends of the double pipe to be in contact with the cooling water, and the oil flows through the inner pipe. In an aluminum double-tube oil cooler, the end of the double-tube protruding from the outer edge of the sheet is expanded, and An aluminum double-tube oil cooler characterized in that a low-temperature reservoir is formed on the outer periphery of the expanded tube portion and on the end face of the sheet. (2) A double pipe consisting of an outer pipe and an inner pipe, with an oil passage formed between the two pipes, and the outer side of each of the outer pipe and inner pipe coming into contact with the cooling water flowing in the tank of a heat exchanger such as a radiator. A tube, which is attached to both ends of the double pipe and forms an inlet and an outlet for oil flowing through the oil passage inside the double pipe, as well as an inlet and an outlet for cooling water flowing within the inner pipe. In an aluminum double-tube oil cooler having a sheet provided with a through hole, a notch is provided on the protruding side end surface of the double tube on the outside of the sheet, and the notch and the double tube are connected to each other. This is an aluminum double-tube oil cooler that is characterized by forming a low-temperature reservoir between the two.