초록 ▼

In an exhaust system for two-stroke cycle engines, comprising an exhaust pipe whose front end, which is characterised by a constant cross-section, is followed by two or more conical sections, these conical sections are configured as diffusers, which are connected to the front end of the exhaust pipe

In an exhaust system for two-stroke cycle engines, comprising an exhaust pipe whose front end, which is characterised by a constant cross-section, is followed by two or more conical sections, these conical sections are configured as diffusers, which are connected to the front end of the exhaust pipe with its constant cross-section by means of branch pipes of different length, and which open into a common exhaust header at the other end, which header in turn is connected to the exhaust tail pipe comprising a catalytic converter and/or a silencer. This arrangement has the effect that a pressure wave coming from the cylinder is twice reflected as a suction wave arriving at the still open exhaust port at different times due to the difference in pipe length. In this manner the effective duration of the suction wave is prolonged over that of comparable exhaust systems of a known kind.

대표청구항 ▼

An exhaust system for two-stroke internal combustion engines comprising at least one exhaust pipe with a front end, which is characterized by a constant cross-section, wherein said front end of said exhaust pipe is connected to a first and a second conical section, by means of first and second branc

An exhaust system for two-stroke internal combustion engines comprising at least one exhaust pipe with a front end, which is characterized by a constant cross-section, wherein said front end of said exhaust pipe is connected to a first and a second conical section, by means of first and second branch pipes of different lengths, wherein said conical sections are configured as diffusers which are connected to an exhaust header which in turn is connected to an exhaust tail pipe.