WOODWARD 8404-2065

الوصف

The Woodward 8404-2065 is a specific part number within the L-Series of integrated engine control systems. This particular unit is a compact and specialized solution, featuring a 50 mm Integrated Throttle Body (ITB) and designed for position control or process control applications.

WOODWARD 8404-2065: L-Series Integrated Throttle Body (ITB) (50mm, Sealed, Process/Position Control)

The Woodward 8404-2065 represents a configuration within Woodward’s L-Series that combines an electric actuator, an embedded controller, and a large Integrated Throttle Body (ITB) into a single, robust package. It’s specifically tailored for precise position control or process control (such as air/fuel ratio management), offering accurate regulation of air flow for engines with higher airflow demands.

Product Overview

• Product Type: Integrated Electric Actuator, Position/Process Controller, and Throttle Body (ITB)
• Manufacturer: Woodward
• Series: L-Series
• Function: Primarily designed for position control (e.g., precise throttle plate angle) or process control (e.g., maintaining target air/fuel ratio) by regulating air flow via the integrated throttle body.
• Throttle Body Size: Features a 50 mm diameter throttle body, indicating it’s suitable for engines with higher airflow requirements compared to smaller ITB units.
• Design: Microprocessor-based control integrated directly into the electric actuator and throttle body assembly.
• Key Features: Sealed design for harsh environments, compatible with 12/24 VDC power systems, and typically comes with default parameters for simplified setup. It’s often associated with RoHS compliance and used for AFR (Air/Fuel Ratio) control.

Detailed Description

The Woodward L-Series is renowned for its advanced and highly integrated engine control solutions. The 8404-2065 is a prime example, streamlining engine management by combining multiple critical functions into one durable unit:

• All-in-One Integration: This unit seamlessly integrates the electric actuator (the mechanical component that moves the throttle plate), the electronic controller (the “brain” that processes commands), and the throttle body (the mechanism that regulates air intake) into a single, compact assembly. This significantly simplifies installation, reduces wiring complexity, minimizes potential points of failure, and conserves valuable space on the engine.
• Position or Process Control: Unlike dedicated speed controllers, this model excels at precise position control of the throttle plate, allowing it to be commanded to a specific angle, or for process control, where the throttle position is dynamically adjusted to achieve a desired outcome like a specific air/fuel ratio. This versatility makes it ideal for various engine types, especially those running on gaseous fuels.
• 50 mm Throttle Body: The substantial 50 mm diameter throttle body indicates its high flow capacity, making it suitable for larger or more powerful engines that require significant airflow.
• Sealed Design: The “Sealed” characteristic means it’s engineered to withstand harsh engine environments, providing enhanced protection against moisture, dust, and vibration, which contributes to its long-term reliability and service life.
• Microprocessor-Based Control: The embedded controller utilizes sophisticated algorithms to precisely manage the throttle plate’s position based on incoming command signals (such as PWM, 0-5V, or CAN), ensuring accurate and responsive control.
• Versatile Power Input: Compatible with both 12 VDC and 24 VDC power systems, offering flexibility for different vehicle or industrial applications.
• Programmability and Default Parameters: Like other L-Series components, the 8404-2065 is highly configurable via Woodward’s PC-based service tool software. It often includes “Default Parameters” pre-loaded, which can streamline initial setup and commissioning.

Applications

The Woodward 8404-2065 is typically used in:

• Gaseous Engine Air/Fuel Ratio Control: Providing precise air/fuel mixture management for engines running on natural gas, LPG, biogas, or other gaseous fuels, optimizing combustion efficiency and meeting stringent emission standards.
• Industrial Power Generation: Employed in engine-generator sets where efficient and clean operation of gaseous-fueled engines is critical, particularly in distributed generation, cogeneration, or standby power applications.
• Engine Test Benches: For demanding applications requiring precise and repeatable control of airflow for engine development, research, or quality assurance.
• Specialized Industrial Processes: Where engines drive equipment that requires very fine control over combustion parameters or air intake for process optimization.
• Mobile and Industrial Gas/Gasoline Engines: As a modern, integrated replacement for traditional throttle valves.

Related Products/Series

The Woodward 8404-series encompasses a wide range of L-Series components for engine management, often varying by throttle body size, primary control function (speed vs. position/process), and specific features. Other related part numbers in this series include:

• 8404-2033: Another L-Series ITB with a 50 mm throttle body for process control and sealed. It is functionally very similar to the 8404-2065, with differences potentially being minor revisions or specific market variants.
• 8404-2061: An L-Series ITB with a 25 mm throttle body, sealed, for process/position control.
• 8404-2062: An L-Series ITB with a 30 mm throttle body, sealed, for process/position control.
• 8404-2063: An L-Series ITB with a 36 mm throttle body, sealed, for process/position control.
• 8404-7207 / 8404-7208: These are L-Series ITB units (often 43mm) specifically designed for speed control, whereas the 8404-2065 is for position/process control.
• 8404-7301 / 8404-7302: These are L-Series Trim Valves, which provide fine-tuning (trimming) of fuel or air flows, rather than managing the primary air intake like an ITB.