摘要:
The soundproof casing is divided to an engine room 1, a muffler room 2 and a radiator room 3. The engine room 1 includes the engine E and a work machine unit (generator unit G). The muffler room 2 includes mufflers M1, M2. The radiator room includes a radiator R. An electric fan D is provided between an air intake aperture 22a and the radiator. The radiator room and the muffler room are communicated. An air flow duct 4 to communicate the engine room and the muffler room is provided. An engine fan F is provided just opposite to an entrance of the air flow duct. An inter-cooler I is provided in the air flow duct. The soundproof type engine driven work machine including aforementioned apparatuses is offered to improve the cooling efficiency as well as reducing unfavorable noise.
摘要:
A device and a method for reducing or muffling sound from kitchen appliances such as coffee grinders. The sound reducing or muffling device can be left on the appliance even when not in use, providing a decoration to the kitchen in a style appropriate to it's surroundings. Using the muffling device, a person can enjoy fresh-ground coffee at anytime with the assurance that the sound from the coffee grinder is well insulated. The device is particularly easy to deploy and use, requires no moving parts, and is flexible enough to work with the majority of coffee grinder products currently on the market. Other embodiments can be used with other forms of kitchen appliances.
摘要:
An acoustic blanket is disclosed for an industrial machine including a plurality of flexible panels, wherein each panel includes at least one layer of a fiber glass material, an outer casing of a chemically resistant material and an attachment for connecting the panel to an adjacent panel, and the plurality of flexible panels are each assigned a position in said blanket corresponding to a location on the industrial machine.
摘要:
Flow guides in the form of extensions that project internally from the housing of an electronic consumer device can contribute to undesirable noise emissions from the device. Proposed is an improved flow guide or extension that reduces propagation of flow induced vibrations to the housing, thereby improving the overall acoustic performance of the device.
摘要:
A cladding element having sound-absorbent properties is provided for screening an engine and/or exhaust system of a motor vehicle, for example as an underbody cover panel for same, in the form of a substantially plate-shaped, self-supporting stiff component of thermoplastic material formed at least in part as a hollow body, which at least partially accommodates a sound-absorbent filling of foamed thermoplastic material.