26m 8s | 2390 view | 22 rating

Tuscarawas Valley Show Dover OH August 2013 A power eater consists of a generator, resistive load bank, and a control panel to set the amount of load. These 2 units each have a timer to cycle the load on + off. Railroads use much larger load banks to dyno rebuilt diesel engines. Baker was a unique high tech engine, which used a Unaflow (Uniflow) cylinder and the patented Baker Valve Gear, as used on many high-end steam locomotives. In a normal steam engine, steam is admitted to the cylinder via a valve, and pushed out through the same port on the exhaust stroke. Pushing the steam back out wastes power (the terminology is "back pressure"). In a Unaflow cylinder, the steam is admitted in the same way, but then escapes through exhaust ports at the center of the cylinder, avoiding the power loss of exhausting the steam through a small port. A small amount of steam is retained to cushion the end of the piston stroke. Disposing of the exhaust steam in this way also allows it to operate at higher RPMs, with a smaller flywheel to maintain correct belt speed. The blue Baker is a 23-90, "Mr. T", which we have known for 30+ years. It is intentionally kept in its "work clothes". The red 19-65 is at its first show since receiving a new boiler. A 21-75 was running out of sight at the start of the video, but moved out to go run the sawmill, will be in an upcoming video. Horsepower ratings were very conservative in the pre-war era. The 23-90 easily exceeds 100 actual Hp, all day. A Port Huron compound appears briefly running a Baker Fan, will be in a separate video. The compound design is another approach to efficiency, using the steam twice to wring more power out of it. Bakers Power Eaters 130818b