摘要:
A cogeneration apparatus includes a housing for accommodating an engine, a fuel line, an electrical generator, and a power converter part. The housing is partitioned into a power-generation compartment and an electrical-equipment compartment. Empty space in the housing is used to form a concave part, which is indented from the electrical-equipment compartment toward the power-generation compartment. The fuel line is disposed in the concave part.
摘要:
The present invention aims to provide a muffling structure of a vent pipe and a muffling structure of a case, which is capable of muffling in a wide frequency range and preventing vent resistance in the air pipe or the case from deterioration. Vent holes (11a) are formed in the peripheral wall of the vent pipe (11), a cover (12) is so provided on the peripheral wall of the vent pipe (11) as to cover the vent holes (!1a), and a bag-like body (13) in which activated charcoal (14) is contained is disposed in the space formed by the peripheral wall of the vent pipe (11) and the inner wall of the cover (12).
摘要:
A resonator for a vehicle air intake system is disclosed, wherein the resonator is variable tuned to militate against the emission of sound waves caused by the engine and other sources at a wide range of engine speeds.
摘要:
An engine cover 17 has a cover main body 19 and an engine hood 20 which is attached to an opening portion formed on an upper surface of the cover main body 19 and a plurality of reinforcing plates 24 are fixed to an inner surface of the engine hood 20. First to fourth reinforcing plates 24a to 24d of a plurality of reinforcing plates 24 define a space in an engine portion 14. An expansion chamber 26 which is communicated with an intake passage 23 reaching to an engine and resonant chambers 27, 28 which are communicated with the expansion chamber 26 via ports 29 are formed in the engine portion 14.
摘要:
An acoustic silencer is provided by a tubular member extending along an axis and having a hollow interior defining an axial flow path therethrough. The tubular member has a sidewall with an interior face facing the hollow interior and having quarter wave resonators formed by blind holes therein.
摘要:
An air duct orifice includes an adapter pipe inserted in and attached to an end portion of an air duct connected to an engine side; an orifice pipe protruding from an outer surface of the adapter pipe; and an orifice cover coupled to an upper opening formed on the orifice pipe. The orifice pipe is disposed in a receiving opening formed on the air duct. The orifice pipe has engaging jaws on two side surfaces, and the orifice cover has combining holes on two side surfaces. The engaging jaws are engaged with the combining holes. The side surfaces of the orifice pipe without engaging jaws and the side surfaces of the orifice cover without combining holes are spaced apart from each other to form a radiation path of noise. The air duct orifice further includes a small resonator mounted to a lower side surface of the air duct.
摘要:
An engine can include an air cleaner in communication with intake ports of the engine, and a wind introduction duct for introducing a wind into a primary chamber of the air cleaner. The wind introduction duct can include a resonator for absorbing predetermined frequencies. The resonator can have a predetermined capacity and can have a communication port in communication with the inside of the introduction duct.
摘要:
A device for turbocharging an internal combustion engine including a turbocompessor including a turbine driven by the engine exhaust gas and a compressor driven by the turbine and compresses the engine intake air. An air intake conduit connects the compressor output to an air intake manifold to the engine and includes a chamber for damping pulsations generated at the compressor output. The damping chamber is connected directly to the compressor output.
摘要:
A resonator and method of designing a resonator including a cavity having an effective length that exceeds λ/8 such that a standing wave having an anti-node will form in the cavity. First and second necks each having first ends are attached to and in fluid communication with the cavity, the first neck being positioned adjacent the anti-node and thereby operable to interfere with said standing wave.
摘要:
A resonator for a vehicle air intake system is disclosed, wherein the resonator is variable tuned to militate against the emission of sound waves caused by the engine and other sources at a wide range of engine speeds.