Exhaust pressure control valve

An exhaust gas pressure control valve mounted on a gas pipeline having a first cross-section where exhaust gas, from an engine, communicates and is disposed upstream or downstream of a muffler, comprising:

• a housing having a first cross-sectional surface and a second cross-sectional surface larger than the first surface, the housing connected to the gas pipeline and configured to communicate the exhaust gas, wherein the second cross-sectional surface has an inclined region formed with a height that becomes shorter from upstream to downstream;
• a valve axis supported along the second cross-section not overlapping with the first cross-section when viewed from the flowing direction, the valve axis supported by the housing in a crossing direction to the flowing direction;
• and
• a valve element connected to the valve axis and configured to adjust flow of the exhaust gas communicating to the gas pipeline;
• wherein the valve element is configured to close a communication path of the exhaust gas by tilting the valve element by 45 to 70 degrees to the flowing direction when the exhaust gas is not flowing from the engine, wherein the housing is configured such that the exhaust gas enters the housing proximate the inclined region and opens the communication path of the exhaust gas when the exhaust gas is flowing with high intensity from the engine.