Patent
Noise suppression in the intake system of an internal combustion engine
TLDR
An air diffuser and method of operation for an air intake system of an internal combustion engine is described in this article. But this method is not suitable for large-scale engines.Abstract:
An air diffuser (20) and method of operation for an air intake system of an internal combustion engine. The air intake system includes a throttle body (22) up stream from an intake manifold (24), with the air diffuser (20) mounted between them. The air diffuser (20) includes vanes (62,64) extending into its main bore (52) in order to diffuse and redirect the air flowing from the throttle body (22) into the intake manifold (24). The diffusion and redirection of the air reduces the noise emanating from the intake manifold (24) for particular engine operating conditions.read more
Citations
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Patent
Flow improvement vanes in the intake system of an internal combustion engine
TL;DR: In this paper, an air diffuser is used to diffuse and redirect the air flowing from the throttle body (22) into the intake manifold (24) of an internal combustion engine.
Patent
Noise attenuation device for a vehicle exhaust system
Michael Choi,Amir Keyvanmanesh +1 more
TL;DR: In this article, a noise attenuation device for a vehicle exhaust system is provided, which includes an exhaust pipe having a passageway for receiving exhaust gas pulses from an engine.
Patent
Apparatus for preventing flow noise in throttle valve
TL;DR: In this paper, an apparatus for preventing flow noise which suppresses the noise caused at the time of opening of a throttle valve provided in an intake passage of an internal combustion engine etc.
Patent
Portable vehicle exhaust flow sensor
TL;DR: In this paper, a portable exhaust gas flow sensor includes a tube for coupling to an exhaust pipe of a vehicle, which includes a circular flow restricting element to induce a pressure drop based on the exhaust gas flows with an upstream port and a downstream port relative to the flow restricting elements connected to a differential pressure transducer.
Patent
Noise attenuating device for a heating-ventilation-cooling system of a motor vehicle
TL;DR: In this article, a noise attenuation device using radial vanes upstream of a flow discontinuity, such as a bend in the ducting, and downstream of a blower fan is used to reduce noise.
References
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Patent
Turbo plate vaporizer
TL;DR: A single, relatively thin plate with no movable parts, easily inserted between the bottom of the carburetor and the top of the intake manifold of vehicles using internal combustion engines without fuel injection systems, which plate has a plurality of wedge shaped collectors directed in a counterclockwise direction as mentioned in this paper.
Patent
Internal combustion engine of improved efficiency
TL;DR: In this article, an internal combustion engine of improved efficiency having a cylinder and an intake manifold, the manifold containing therein between the plane of laminated flow and the cylinder end of the manifold a device for increasing turbulence, said device including at least one unit comprising a central opening which is responsive to flow through said opening to produce turbulence and a second plate having central opening therein.
Patent
Air-fuel mixture flow control structure and method of making the same
TL;DR: A flow control honeycomb structure for use in an intake passage of an engine for producing turbulent flow in an air-fuel mixture flowing through the intake passage, which structure includes a short cylindrical peripheral wall defining therein a circular passage having a substantially circular cross section, a plurality of substantially crisscross partitions joined to and disposed in the peripheral wall and dividing the circular passage into a first group of square passageways each having substantially square cross section and a second group of four triangular passagrees each having a relatively large cross-sectional area as mentioned in this paper.
Patent
A device for improving the fuel/gas air mixture and the operation of an internal combustion engine
TL;DR: In this paper, a plate is inserted between the carburettor and the bores of the manifolds of an internal combustion engine to intercept the fuel-air mixture immediately after it leaves the carrotor around the butterfly.