Based on ISO standards and international engineering practice, the definitions and conversions for engine power units are as follows.### ⚙️ ISO Definitions of Power UnitsThe SI (International System of Units) unit for power is the Watt (W), with kilowatt (kW) being the most commonly used multiple in

The relationship between power, torque, and speed for non-road diesel engines is governed by the following formula, established under ISO 15550.### The Standard FormulaThe relationship is defined by the equation for mechanical power:P = (T × N) / 9,550Where: P = Power (kW) | T = Torque (N·m) | N

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

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

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

I. Problem Overview- The engine starting motor frequently fails, and users generally believe it is a quality issue. In reality, usage habits have a significant impact on the motor's lifespan.II. Starting Motor Parameters- The current is high at the moment of startup, ranging from tens of amperes to