Massive 250HP Air Compressor From 1946 скачать в хорошем качестве

Massive 250HP Air Compressor From 1946

A long look at vintage American iron. Ingersoll Rand Compressor Westinghouse Motor Notes from spresc2180 That overhead "pipe" connecting the 2 cylinders is the intercooler. It cooled the heated air coming from the low pressure head before it entered the high pressure cylinder via its suction valves thus increasing efficiency as cooler air is more dense. The protruding valves at mid level on the cylinders are the unloaders, which were staged in operation. Awesome machines!!! at 0045 thats a DC generator excitation motor used for startup & running. The 3 @ 700 - 800 hp Ingersoll XBs I worked with that looked identical to yours were at General Dynamics Shipyard in Quincy Mass. At times we were putting out more than 10,000 cfm at 100 psi. Those green shrpud covers at the rear of each cylinder can be easily removed to see the inner workings. At the rear above the green shrouds are covers or panels that can be opened to see the main journal bearings, which would be awash in oil. you could actually touch the motor shaft to guage its temp. Our "sight feed" lubricators were mechanically driven versus your belt driven units. Oil was distributed to unloaders,& cylinders on each side of the pistons. The hand cranks on the units were for priming & testing to see that they worked & were not clogged. Above those side doors on the housing is where oil dribbled on the crosshead as it zoomed back & forth. Open those rectangular doors on the sides and you will see the "crosshead" which connects the connecting rod from the crank, to the piston rod. It zoomed back & forth on babbited "slippers" or shoes. The unloaders would stage diagonally across both sides of the pistons. 1/4 unloaded would open the unloaders on say the right rear of both pistons. 1/2 load would open up the left front unloaders. 3/4 unloaded would open the left rear unloaders both cyls, & full unload would open the unloaders on the right front of the cyls. So the compression stresses were equalized all around. The rpm of my bigger @800 hp units was 700 rpm, as I recall. When a unloader opened up, it opened that side of the piston cylinder into a "pocket" within the jacket. That "pocket' or cavity, equaled 1/2 of that side of the cylinders volume, so 1/2 of that cyls compressed air swished back & forth between that cyl side and the pocket in the jacket, thus doing no work. When all 4 unloaders were "in", the compressor was in full load mode and all air compressed on each side of the pistons went into the discharge line. The unloading regulator can be seen at 3:16 on the left side of the LP cylinder. Its unloading position was adjusted by moving the weights along its horizontal arm.. Outward would increase the psi top end. It would unload in 1/4 increments. Each cyl has 4 unloaders. 2 on each side of the piston, both heads. that overhead "pipe" connecting the 2 cylinders is the intercooler. It cooled the heated air coming from the low pressure head before it entered the high pressure cylinder via its suction valves thus increasing efficiency as cooler air is more dense. The protruding valves at mid level on the cylinders are the unloaders, which were staged in operation. Awesome machines!!! In the 70s to 1986 I worked with, & on this units big brothers. Carbon copies, only bigger. 3 in fact. XB units patented circa 1910. @800 hp at 4000 cfm at 100 psi. & a Chicago Pneumatic at 1000 hp ar 5000 cfm at 100 psi. gawd the memories.