Intercooler

Patent metadata

Field	Value
Publication number	US-10060338-B2
Application number	US-201515109742-A
Country	US
Kind code	B2
Filing date	Jan 12, 2015
Priority date	Jan 14, 2014
Publication date	Aug 28, 2018
Grant date	Aug 28, 2018

Abstract

An intercooler that cools intake air supercharged into an engine by a supercharger by exchanging heat with a cooling medium includes a heat exchange portion in which heat is exchanged between the cooling medium flowing inside a channel tube and the supercharged intake air flowing outside the channel tube. The cooling medium includes a first cooling medium and a second cooling medium hotter than the first cooling medium. The channel tube includes a first cooling medium channel where the first cooling medium flows and a second cooling medium channel where the second cooling medium flows. The channel tube includes a first U-turn portion forcing a flow of the first cooling medium flowing the first cooling medium channel to make a U-turn, and a second U-turn portion forcing a flow of the second cooling medium flowing the second cooling medium channel to make a U-turn.

First claim

The invention claimed is:

1. An intercooler that cools a supercharged intake air supercharged by a supercharger into an engine by exchanging heat with a cooling medium, the intercooler comprising:
a heat exchange portion in which heat is exchanged between the cooling medium flowing inside a channel tube and the supercharged intake air flowing outside the channel tube, wherein:
the cooling medium includes a first cooling medium and a second cooling medium, a temperature of the second cooling medium being higher than that of the first cooling medium;
the channel tube includes a first cooling medium channel where the first cooling medium flows and a second cooling medium channel where the second cooling medium flows; and
the channel tube includes
a first U-turn portion forcing a flow of the first cooling medium flowing in the first cooling medium channel to make a U-turn, and
a second U-turn portion forcing a flow of the second cooling medium flowing in the second cooling medium channel to make a U-turn;

the channel tube is one of a plurality of channel tubes stacked with each other;
the channel tube has a through-hole forming portion where a through-hole is formed to allow a communication between the second cooling medium channels of the channel tubes adjacent to each other;
a length of the through-hole forming portion in the flow direction of the supercharged intake air is longer than a length of the second cooling medium channel in the flow direction of the supercharged intake air;
the channel tube further includes a second inlet forming portion forming a second inlet for the second cooling medium, and a second outlet forming portion forming a second outlet for the second cooling medium,
both of a length of the second inlet forming portion and a length of the second outlet forming portions in the flow direction of the supercharged intake air are larger than the length of the second cooling medium channel in the flow direction of the supercharged intake air, and
both of the length of the second inlet forming portion and the length of the second outlet forming portion in the flow direction of the supercharged intake air are smaller than a length of the first cooling medium channel in the flow direction of the supercharged intake air.

2. The intercooler according to claim 1 , wherein:
the channel tube is formed by two opposing plate-shaped members.

3. The intercooler according to claim 1 , wherein:
a length of the second cooling medium channel of the channel tube in the flow direction of the supercharged intake air is longer than or equal to 20 mm.

4. The intercooler according to claim 1 , wherein:
a length of the channel tube in the flow direction of the supercharged intake air is shorter than or equal to 200 mm.

5. The intercooler according to claim 1 , wherein:
the channel tube has
a first inlet through which the first cooling medium flows into the first cooling medium channel, and
a first outlet through which the first cooling medium flows out from the first cooling medium channel,

the first inlet, the first outlet, the second inlet, and the second outlet are arranged on a layout surface of the channel tube; and
the channel tube is configured in such a manner that respective center portions of the first inlet, the first outlet, the second inlet, and the second outlet fail to position on a same one linear line in the layout surface, such that the center portion of the first inlet is offset toward the first U-turn portion relative to the center portion of the first outlet in a flow direction of the first cooling medium, and that the center portion of the second inlet is offset toward the second U-turn portion relative to the center portion of the second outlet in a flow direction of the second cooling medium.

6. The intercooler according to claim 1 , wherein:
the channel tube further includes a first inlet forming portion forming a first inlet for the first cooling medium, and a first outlet forming portion forming a first outlet for the first cooling medium, and
both of a length of the first inlet forming portion and a length of the first outlet forming portion in the flow direction of the supercharged intake air are smaller than the length of the first cooling medium channel in the flow direction of the supercharged intake air.

7. The intercooler according to claim 6 , wherein:
the first inlet forming portion, the first outlet forming portion, the second inlet forming portion, and the second outlet forming portion are all equal in length in the flow direction of the supercharged intake air.

Assignees

• Denso Corp

Inventors

• Harada Masaki
• Yamanaka Akira
• Saitou Masafumi
• Yasuda Takashi
• Asano Taichi

Classifications

• Y02T10/146

  Cross-Sectional Technologies · mapped topic

• F28D9/0056

  with U-flow or serpentine-flow inside conduits; with centrally arranged openings on the plates · CPC title

• F28F2210/10

  Particular layout, e.g. for uniform temperature distribution · CPC title

• F28F13/06

  by affecting the pattern of flow of the heat-exchange media {(F28F13/003 takes precedence; static flow control means in header boxes F28F9/026)} · CPC title

• F02B29/0443 Primary

  Layout of the coolant or refrigerant circuit · CPC title