. Automotive industries . 20. Lubrication of the engine is by the pressure systemfrom a gear pump mounted below the crankshaft ahead ofthe forward main bearing and driven by a bevel gear fromthe crankshaft bevel pinion. The crankshaft is supportedin seven bearings. The main journals are 2% , and the crank cheeks or webs are in theform of complete disks. Oil from the pump is delivereddirectly to each main bearing and thence finds itsway through circular grooves on the crank disks anddrill holes in the crank cheeks and crankpins tothe crankpin bearings. A vertical oil passage isdrille
. Automotive industries . 20. Lubrication of the engine is by the pressure systemfrom a gear pump mounted below the crankshaft ahead ofthe forward main bearing and driven by a bevel gear fromthe crankshaft bevel pinion. The crankshaft is supportedin seven bearings. The main journals are 2% , and the crank cheeks or webs are in theform of complete disks. Oil from the pump is delivereddirectly to each main bearing and thence finds itsway through circular grooves on the crank disks anddrill holes in the crank cheeks and crankpins tothe crankpin bearings. A vertical oil passage isdrilled in the forward wall of the crank chamber andthe cylinder block. Through this oil is forced to theupper bearing of the vertical shaft. Oil working throughthis bearing accumulates in the housing of the uppetpair of bevel gears, so that these run in a continuous oilbath. At the rear end of the engine there is a cored pas-sage from the crank chamber to the valve chamber,which serves as a breather and oil return passage, and. Transverse and longitudinal sections of Abell engine, showing positively operated poppet valve and rotary distributor valve January 27. 1921 AUTOMOTIVE INDUSTRIESTHE AUTOMOBILE 159
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectaeronautics, bookyear
