Air intake device

Patent metadata

Field	Value
Publication number	US-8955497-B2
Application number	US-201213426652-A
Country	US
Kind code	B2
Filing date	Mar 22, 2012
Priority date	Apr 5, 2011
Publication date	Feb 17, 2015
Grant date	Feb 17, 2015

Abstract

An air intake device includes a cooler and a surge tank accommodating the cooler. The air intake device is to be connected to a cylinder head of an engine. The cylinder head includes an intake port that accommodates an intake valve. The cooler has a refrigerant passage through which refrigerant flows and an air passage through which intake air flows. The surge tank has a connector connected to the cylinder head. The cooler has a protrusion protruding from the connector toward the intake valve.

First claim

What is claimed is:

1. An air intake device that is connected to a cylinder head of an engine, the cylinder head including an intake port that accommodates an intake valve, the air intake device comprising:
a surge tank having
a main part defining an accommodation space that communicates with an intake passage of the intake port, and
a connector connected to the cylinder head;

a cooler accommodated in the accommodation space, the cooler having a refrigerant passage through which refrigerant is configured to flow and an air passage through which intake air is configured to flow, the cooler being configured to cool the intake air using the refrigerant, wherein the cooler has a protrusion protruding from the connector toward the intake valve; and
a flow rate controller that controls an amount of the intake air flowing through the intake passage, the flow rate controller comprising a tumble control valve configured to generate a tumble flow or a swirl control valve configured to generate a swirl flow, wherein the flow rate controller is located opposite from the intake valve through the cooler.

2. The air intake device according to claim 1 , wherein
the protrusion is one of a plurality of protrusions.

3. The air intake device according to claim 1 , wherein
the cooler is one of a plurality of coolers.

4. The air intake device according to claim 1 , wherein
the refrigerant passage extends to an end of the cooler opposing to the intake valve.

5. The air intake device according to claim 1 , wherein
the refrigerant passage has a forward passage and a backward passage, wherein refrigerant passage is configured so that refrigerant flows toward the intake valve in the forward passage and flows away from the intake valve in the backward passage.

6. The air intake device according to claim 1 , wherein
the air passage of the cooler is separated into a first part and a second part in a direction perpendicular to a flowing direction of the intake air, and
the first part has a first passage area larger than a second passage area of the second part.

7. The intake device according to claim 1 , further comprising a throttle valve upstream of the flow rate controller.

8. The intake device according to claim 7 , wherein the throttle valve is upstream of the surge tank.

Assignees

• Ino Masao
• Sato Osamu
• Yamamoto Yoshiaki
• Denso Corp

Inventors

• Ino Masao
• Sato Osamu
• Yamamoto Yoshiaki

Classifications

• F02M35/10268

  Heating, cooling or thermal insulating means (air coolers F02B29/04; thermal treatment of combustion-air, fuel or fuel-air mixture F02M31/00; details of the throttle valve housing F02D9/1035) · CPC title

• F02M35/10052 Primary

  special shapes or arrangements of plenum chambers; Constructional details · CPC title

• F02B29/0475

  the intake air cooler being combined with another device, e.g. heater, valve, compressor, filter or EGR cooler, or being assembled on a special engine location · CPC title

• F02B29/0462

  Liquid cooled heat exchangers · CPC title

• F02M35/10262

  Flow guides, obstructions, deflectors or the like (for generating a charge motion in the cylinder F02B31/00; for re-atomising condensed fuel or homogenising fuel-air mixture F02M29/00) · CPC title