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Brand: C.OEFT
OE numbers: SMW350112
Product Name: VVT gear
Compatible model:
Product status: New
Number of teeth on the product: 48
Product weight: 1.6738kg
Packaging size: 17*17*8.5 cm
Product packaging: Neutral Packaging
Car Series: Chinese
Car Type: for JMC Ruimai 4K21
1.Real-Time Adaptive Valve Timing Regulation
·It integrates with the engine’s electronic control unit (ECU) to receive real-time data on operating conditions (including engine speed, load, and even driving demand). Based on this data, it drives a hydraulic actuator to inject high-pressure engine oil into the camshaft phaser cavity, which adjusts the relative rotation angle between the camshaft and crankshaft. This dynamic adjustment ensures the intake and exhaust valves open/close at the optimal timing for every driving scenario, eliminating the "fixed timing" limitation that compromises efficiency in traditional gears.
2.Precision Power Transmission & Component Synergy
·Beyond timing adjustment, it serves as a key power transmission link in the engine’s timing system: it accurately transfers rotational power from the crankshaft to the camshaft while locking their phase relationship within a strict tolerance range. This prevents misalignment between critical components (such as pistons, intake valves, and exhaust valves) and ensures the entire engine operates in a coordinated, orderly manner—avoiding mechanical interference and laying the foundation for stable engine operation.
1.Targeted Fuel Consumption Reduction
By precisely matching valve timing to load, it minimizes "pumping loss" (the energy wasted when the engine draws in air) during low-load operation (e.g., idling, cruising at constant speed). Additionally, the optimized air-fuel mixing and complete combustion reduce fuel waste caused by incomplete combustion. In actual use, this translates to a 5%-7% improvement in fuel economy for JMC Ruimai 4K21 vehicles, especially in daily urban commuting with frequent low-load conditions.
2.Compliance with Strict Emission Standards
The gear’s precise timing control optimizes the combustion process: on one hand, it reduces unburned hydrocarbons (HC) and carbon monoxide (CO) by ensuring full fuel combustion; on the other hand, it regulates the exhaust valve timing to enhance the efficiency of the exhaust gas recirculation (EGR) system, lowering the combustion temperature and suppressing the generation of nitrogen oxides (NOₓ). This helps the JMC Ruimai 4K21 engine easily meet national VI emission standards, avoiding emission-related failures or compliance issues.
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