Abstract: A vacuum brake booster having sound absorbing members affixed to the front and rear shells to attenuate sounds caused by air movement in the brake booster. The front shell is joined to the rear shell to define the housing for the brake booster. The housing is divided into a first chamber and a second chamber by a wall structure. The first and second chambers in a first mode of operation are designed to be in communication with a first source of fluid (vacuum) having a first fluid pressure while in a second mode of operation the second chamber is in communication with a second source of fluid (atmospheric air) at a second fluid pressure. In the second mode of operation, a pressure differential is created across the wall structure to produce an output force corresponding to an input force associated with a desired braking application.

Abstract: A mounting system for a compressor of a refrigerator includes a floating frame rigidly secured to a compressor housing in which the compressor is resiliently mounted, the floating frame being resiliently secured to the frame of the refrigerator. The floating frame includes a pair of support rails to which the refrigerator's condenser is rigidly secured as well as the compressor housing. In one embodiment the floating frame also includes a cross rail to which a first end of each of the support rails is rigidly secured. By increasing the effective mass of the compressor housing to include the condenser and floating frame the amount of vibration transmitted from the compressor to the refrigerator frame is reduced as well as the noise generated thereby.

Abstract: A hot blast stove for use with high capacity blast furnaces incorporates a gas flow baffle particularly configured for improving mixture of combustion air and gas within the combustion chamber to enhance fuel burning characteristics with a concomitant reduction in pressure-pulsation experienced within the system and without an appreciable reduction in fuel firing rate.