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Variable valve apparatus and muffler provided with the same

a valve and muffler technology, applied in mechanical devices, machines/engines, gas chambers, etc., can solve problems such as noise, and achieve the effect of reducing touching noise and booming nois

Inactive Publication Date: 2014-06-19
HYUNDAI MOTOR CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention is about a variable valve apparatus that can reduce both touching and booning noise. Additionally, the patent describes a muffler that can be used in a vehicle and provide the same benefits as the variable valve apparatus.

Problems solved by technology

In a conventional variable valve, however, noise may be caused by frequent contacts between a gate and a housing due to change in the exhaust gas pressure.

Method used

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  • Variable valve apparatus and muffler provided with the same
  • Variable valve apparatus and muffler provided with the same
  • Variable valve apparatus and muffler provided with the same

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Embodiment Construction

[0031]In the following detailed description, only certain exemplary embodiments of the present invention have been shown and described, simply by way of illustration. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. Throughout the specification, like reference numerals represent the same constituent elements. In the drawings, the thickness of layers, films, panels, regions, etc., are exaggerated for clarity. When an element such as layer, film, region, or plate is referred to as being “on” another element, it may include not only a case in which an element is directly on another element but also a case in which another element is interposed therebetween. In contrast, when an element is referred to as being “directly on” another element, there are no intervening elements present.

[0032]It is understood that the term “vehicle” or “vehicular” or other s...

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PUM

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Abstract

A variable valve apparatus includes: a housing having a pair of shaft holes and a gate hole formed in the housing; a gate provided to selectively open the gate hole; a shaft provided in the shaft holes and connected to the gate; and a spring provided on the shaft so as to elastically support the gate, in which a gap is formed between the gate and the housing. The variable valve apparatus may be provided as part of a muffler installed in a vehicle.

Description

CROSS-REFERENCE TO RELATED APPLICATION[0001]This application claims under 35 U.S.C. §119(a) priority to and the benefit of Korean Patent Application No. 10-2012-0145735 filed in the Korean Intellectual Property Office on Dec. 13, 2012, the entire contents of which are incorporated herein by reference.BACKGROUND[0002](a) Field of the Invention[0003]The present invention relates to a variable valve apparatus and a muffler provided with the same, and more particularly, to a variable valve apparatus capable of reducing touching noise and booming noise, and a muffler provided with the variable valve apparatus, where the muffler can be installed in a vehicle.[0004](b) Description of the Related Art[0005]Generally, in a gasoline engine used in a vehicle or the like (hereinafter, referred to as an engine), silence without noise is required in an idle rotation region of 750 RPM and a common-use region of 2500 to 3000 RPM, and high power is required in a fast rotation region of 3000 RPM or mo...

Claims

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Application Information

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IPC IPC(8): F01N13/08
CPCF01N13/08F01N1/006F01N1/02F01N1/084F01N1/166F01N13/1894F01N2490/06F01N2490/08F01N1/16F01N1/18
Inventor KYE, JAE HONGKIM, HOOINYUNKIM, HONG JAEKU, JA KYUNGYOON, JONG SEOCHAE, SEUNG HOON
Owner HYUNDAI MOTOR CO LTD