Injectors and fuel rails systems manufacturers

Our Deka VII collection represents our core offering as PFI gasoline injector manufacturers. This modular platform delivers maximum design flexibility for OEM integration requirements. The flex fuel injectors feature our proprietary A-squared™ spray pattern technology, combining fine atomization characteristics with minimal leakage performance. High linearity across the operating range ensures consistent fuel metering accuracy throughout the injector service life. We supply port fuel injection solutions engineered to withstand thermal stress, maintain flow precision, and provide reliable operation across diverse fuel compositions including ethanol blends. These systems are extensively deployed in automotive industry solutions where reliability and emissions compliance define competitive advantage.

Dumarey manufactures high-precision injectors engineered for demanding operating conditions in passenger vehicles, commercial trucks, and off-road machinery. Our manufacturing process incorporates advanced materials and tight tolerance machining to deliver reliable fuel atomization under variable pressure and temperature environments. These injectors are designed to meet current and future emissions regulations including Euro 7, EPA Tier 4, and equivalent international standards.

As manufacturers focused on three critical performance parameters, we prioritize fine atomization to ensure complete fuel vaporization for efficient combustion and reduced hydrocarbon emissions. High pressure resistance enables compatibility with modern direct injection architectures and common rail systems operating above 2,000 bar. Extended service life is achieved through wear-resistant materials and robust sealing technologies that minimize maintenance requirements over the component lifecycle. Our injector portfolio serves diverse sectors including off-road solutions, where extreme operating conditions and fuel quality variations demand exceptional component durability.

Our fuel rails manufacturing capabilities complement our injector portfolio, providing complete fuel delivery system solutions. We produce rails that ensure balanced fuel distribution across all cylinders while maintaining consistent pressure control. Each rail undergoes precision machining and is manufactured according to specifications that guarantee seamless integration with high-pressure fuel pumps, pressure regulators, and injector interfaces.

Our manufacturing approach delivers multiple operational benefits. Consistent fuel pressure and flow distribution improve combustion uniformity across the engine. Compatibility with both direct injection and common rail architectures allows platform flexibility. Vibration-damping design features reduce NVH (noise, vibration, harshness) transmitted to the vehicle structure, while material selection ensures corrosion resistance when operating with modern fuel formulations including biodiesel blends. We supply fuel rails to OEMs worldwide, supporting diverse powertrain architectures and application requirements.

Dumarey extends its manufacturing expertise beyond fuel injection to include aftertreatment dosing systems. Our Reductant Dosing Unit (AdBlue injector) is available in three configurations customized for light-duty, medium-duty, and heavy-duty applications. We manufacture SCR (Selective Catalytic Reduction) dosing components engineered to deliver precise urea injection through customized spray geometry optimized for each customer’s catalyst interface requirements.

The product line includes both air-cooled and liquid-cooled variants, with options for integrated wiring harness assemblies to simplify OEM installation. Our Diesel Dosing Unit (HC injector) provides equivalent functionality for hydrocarbon-based aftertreatment strategies, enabling multiple NOx reduction approaches within a single component platform. As the industry transitions toward zero-emission powertrains, our engineering capabilities extend to hydrogen industry applications where precise fuel metering and material compatibility with hydrogen gas present unique technical challenges for next-generation propulsion systems.