How Oil Viscosity Affects Engine Starting
Why Increased Oil Viscosity Significantly Increases Starting CurrentThe fundamental reason is that higher oil viscosity greatly increases the engine’s starting resistance torque.1. Increased oil viscosity → greater starting resistance torqueWhen the engine starts, the starter motor must overcome:Com
READ MORE
Engine Oil Quality API vs. ACEA
Engine Oil Quality – Quick Reference for Customers1. API vs. ACEA: Correspondence & Where Each Standard AppliesAPI Grade (Diesel)Closest ACEA EquivalentMain Regions Using Each StandardAPI CF / CF‑4ACEA E2 / E3 (obsolete)North America (API primary); South America (API + local registration); Middle Ea
READ MORE
Aluminum Pump Vs. Cast Iron Pump
Aluminum pump body – lightweight, good for clean water, light debris, and weak corrosive liquids. Ideal for portable use (e.g., flood relief, irrigation).Cast iron pump body – robust, handles dirty water, sand, oil, seawater, and industrial fluids. Suitable for stationary or heavy-duty applications.
READ MORE
Crankshaft Material 40Cr vs. 42CrMo
1. 40Cr (Induction Hardened)· Physical Properties & Microstructure:· Base Condition: Quenched and tempered (Tempered Sorbite), hardness 270–300 HB.· Surface Hardening: Induction hardening + low-temperature tempering, surface hardness 42–48 HRC.· Case Depth: Approx. 2–3 mm (deep, compressive residual
READ MORE
Generator power definition according to ISO8528-1:2018
1. Continuous Power (COP)The "Base-Load" RatingDefinition:The maximum power which the generating set is capable of delivering continuously while supplying a constant electrical load for an unlimited number of hours per year under the agreed operating conditions, with maintenance carried out as presc
READ MORE
Failure of Small Generators To Produce Electricity Due To Carbon Brush Wear
I. Function and Structure of Carbon Brushes- Carbon brushes conduct current, enabling the rotor to function as an electromagnet.- The brush contact points are made of graphite, which provides self-lubrication.II. Analysis of Carbon Brush Wear Causes1. Usage-Related Causes - Dust in the operating en
READ MORE
