Description

INGCO S-DE-CS-T-178F Crankshaft Tapered 178F.

The INGCO S-DE-CS-T-178F is equipped with a crankshaft that has a tapered design. Let’s delve into the technical specifications for this engine:

1. Model: INGCO S-DE-CS-T-178F
2. Type: Single vertical cylinder, 4-stroke, air-cooled, direct injection
3. Bore x Stroke (inches): 3.39 x 2.76
4. Displacement: 25.51 cubic inches
5. Output:
   • Continuous: 6.6 HP
   • Maximum: 8.85 HP
6. Fuel Tank Capacity: 1.45 US gallons (approximately 5.5 liters)
7. Lube-Oil Capacity: 20.27 ounces (approximately 0.60 liters)
8. Crankshaft Direction: Clockwise from the flywheel end
9. Cooling Type: Forced air-cooled by a flywheel fan
10. Lubrication Type: Pressure splash

Let’s delve into the features of a tapered crankshaft:

1. Crankpin: The crankpin, also known as the connecting rod journal, is a crucial part of the crankshaft. It provides a rotating pivot point for attaching the connecting rod firmly. The surface of the crankpin is cylindrical, transmitting rotational force to the large end of the connecting rod.
2. Main Journals: These journals are attached to the engine block and hold the crankshaft, allowing it to rotate within the engine. Main bearings, often in the form of plain or journal bearings, support the crankshaft. The specific design of main bearings varies based on the forces exerted by the engine.
3. Crank Web: The crank web is perhaps the most essential component of the crankshaft. It connects the crankshaft to the main bearing journals, ensuring stability and efficient power transmission.
4. Counterweights: Mounted on the crank web, counterweights serve a critical purpose. They apply an opposing force, balancing the crankshaft during rotation. This balance enhances stability and allows the engine to operate smoothly, especially at higher RPMs.
5. Thrust Washers: At certain points, thrust washers prevent the crankshaft from moving lengthwise. These washers fit between machined surfaces in the crankshaft web and the crankshaft saddle. By maintaining the gap and reducing lateral movement, thrust washers contribute to overall crankshaft stability. Some engines incorporate them as part of the main bearings, while older designs use separate washers.
6. Oil Passage and Oil Seals: The crankshaft features an oil passage that allows oil to flow from the main bearing journals to the big end journals. Typically, this passage is drilled into the crank web. Additionally, oil seals prevent oil leakage and ensure proper lubrication throughout the crankshaft’s operation.

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