5 Generation 4 Cylinder CNG Sequential Gas Conversion Kit
| Fuel Type | CNG |
| Warranty | 24 Months |
| Brand Name | YUNCHENG |
| Product Name | 5 Generation 4 Cylinder Cng Sequential Gas Conversion Kit / Gnv Cng Kit |
| Core Matching Part | cng lpg injector rail |
| Material | Aluminum, Metal |
| Color | Customized |
| Type | Fuel Injector (Sequential Injection Type) |
| Net Weight | 0.55kg |
| Quality Standard | 100% Professional Full Test Before Shipment |
| OEM Service | Available |
| MOQ | 1 Piece (Sample Order Supported) |
| Packing | Export Standard Carton Packing |
CNG Single Point System Kit Auto Gas Carburetor Conversion Kit
| Fuel Type | CNG (Compressed Natural Gas) |
|---|---|
| System Type | Single Point / Venturi Mixer System |
| Warranty | 24 Months |
| Brand Name | OEM / Customized |
| Product Name | CNG Single Point Auto Gas Carburetor System Conversion Kit |
| Engine Compatibility | Carbureted & Single-Point Injection (SPI) Gasoline Engines |
| Core Components | CNG Pressure Reducer, Gas Air Mixer, Changeover Switch |
| Material | Die-Cast Aluminum Alloys & Brass |
| Quality Standard | 100% Leak & Pressure Tested Before Shipment |
| OEM Service | Available |
| MOQ | 1 Piece (Sample Order Supported) |
| Packaging | Standard Export Carton Packaging |
Converting traditional carbureted passenger cars, taxis, and light utility vehicles to compressed natural gas (CNG) is a proven, economical way to reduce daily operational costs by up to 60%. The CNG Single Point Auto Gas Carburetor System Conversion Kit uses a mechanical venturi air-fuel mixing architecture designed specifically for carbureted or early single-point fuel-injected engines. This system offers exceptional mechanical durability, easy installation, and minimal electronic complexity.
System Overview & Operational Principles
The single-point (mixer) gas system relies on the atmospheric pressure differential created by the engine intake stroke. Gaseous fuel is drawn through a high-precision air-fuel mixer installed directly upstream of the carburetor throttle body, creating a homogenous air-gas mixture prior to combustion.
Two-Stage High-Pressure Reducer Regulator: Converts high-pressure natural gas from the storage cylinder (up to 200 bar) down to stable atmospheric delivery pressure through two internal decompression chambers.
Precision Venturi Gas-Air Mixer: Custom-machined for varying throttle bore sizes to maintain proper air-fuel stoichiometry across idling, cruising, and wide-open throttle conditions.
Electronic Changeover Switch: Features integrated safety shutoff capabilities, automatically cutting gas flow if the engine stalls while maintaining easy cabin switching between petrol and CNG.
Manual Power Adjuster (Register): Enables quick manual calibration of max gas flow rates during dynamic vehicle tuning.
Petrol Solenoid Valve: Safely cuts off gasoline supply to the carburetor float chamber when operating in CNG mode.
Key Advantages & Engineering Benefits
Engineered for high reliability in harsh operating environments, this carburetor gas system prioritizes mechanical stability and serviceability over complex electronics.
High Thermal Stability: Integrated engine coolant passages prevent regulator freezing during heavy gas flow rates or cold climatic conditions.
Simplified Maintenance & Repair: Without complex electronic sensors or pulse injectors, field service requires basic mechanical hand tools.
Universal Compatibility: Adaptable to a wide array of classic 4-cylinder, 6-cylinder, and utility vehicle engines using custom mixer rings.
Manufacturing Standards & Factory Quality Control
All pressure-bearing components, diaphragms, and valves are manufactured under rigorous quality standards. Precision CNC machining and strict leak testing protocols ensure maximum operating safety under extreme pressure conditions.
Frequently Asked Questions (FAQ)
What is the difference between a single-point system and a sequential injection system?
A single-point system introduces CNG into the engine intake through a single mixer placed before the throttle body, making it ideal for older carbureted engines. A sequential injection system uses individual electronic injectors for each cylinder, which is designed for modern multi-point fuel-injected (MPFI) engines.
Can this CNG single-point kit be installed on a carburetor car without changing the ignition system?
Yes. The kit installs directly onto existing carbureted engines. However, adding an optional Timing Advance Processor (TAP) can improve spark timing for CNG fuel, restoring extra low-end torque.
Is a single-point CNG conversion safe for daily driving?
Yes. The system utilizes heavy-duty solenoid shut-off valves on both the gas regulator and petrol fuel line. If the engine stops unexpectedly, the safety switch automatically shuts off gas flow immediately.
How often does a single-point CNG system require servicing?
Basic maintenance involves cleaning or replacing the high-pressure gas filter element every 10,000 to 15,000 kilometers and inspecting vacuum lines and coolant hoses for leaks during routine engine services.
