Apparatus for inducing air for an engine
AssigneeHyundai Motor Company
InventorChang-Hyun Shin
Life of this patent
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Abstract
An apparatus for inducting air for an engine is disclosed wherein noise that occurs when intake air flowing through a bypass passage is confluent with intake air drawn from a main passage while the idle speed control actuator is operated is reduced. The apparatus also includes a chamber for temporarily preserving the intake air such that the revolution speed and output power of the engine can be stabilized. In one embodiment a throttle body has a main passage formed therethrough. A throttle valve is mounted in the main passage and a bypass passage bypasses the throttle valve. A surge tank is connected with the throttle body to receive intake air from the throttle body, and the bypass passage extends to the surge tank. The surge tank is provided with a chamber connected to the bypass passage.
Claims14
An apparatus for inducting air for an engine, comprising:
- a throttle body having a main passage formed therethrough, a throttle valve mounted in the main passage, and a bypass passage bypassing the throttle valve;
- and
- a surge tank connected to the throttle body to receive intake air from the throttle body,
- wherein the bypass passage extends to the surge tank, and the surge tank defines a chamber connected to the bypass passage, the chamber having a larger cross-sectional area than the bypass passage.
An apparatus comprising:
- a throttle body defining a main passage and a bypass passage having an inlet in the main passage;
- a throttle valve disposed in said main passage downstream of the bypass inlet;
- a surge tank positioned downstream of the throttle valve and defining a continuation of the main passage to receive airflow therethrough, said surge tank further defining a bypass passage communicating with said throttle body bypass passage, and an outlet from said bypass passage into the surge tank main passage, wherein said bypass passage forms an angle not less than about 20 degrees and not more than about 40 degrees with said main passage at the outlet.
An apparatus, comprising:
- a throttle body defining a main passage and a bypass passage having an inlet in the main passage;
- a throttle valve disposed in said main passage for opening and closing same;
- a surge tank positioned downstream of the throttle valve and defining (i) a continuation of the main passage to receive airflow therethrough, (ii) a bypass passage communicating with said throttle body bypass passage, said surge tank bypass passage including an enlarged chamber, and (iii) an outlet from said bypass passage into the surge tank main passage, said outlet being oriented to direct bypass flow in a direction gradually confluent with main passage flow.
Dependencies are inferred from the claim text.