This is a device that applies pulsating back pressure to the exhaust of a vehicle and conducts durability tests on the muffler. It is used to verify compliance with the regulation 81/334/EEC pulsation test.
The structure is designed to direct the total exhaust gas from a vehicle or engine, adjusted to the output and rotation speed specified by regulations, into this device, and then discharge it externally via a valve. When the vehicle or engine is connected in an operational state, closing this valve increases the exhaust pressure, while opening it decreases the pressure. The opening and closing of the valve applies pressure load to the muffler, and the valve will be opened and closed continuously up to the specified number of times (2500 times) at the specified pressure (35 kPa). For hard specifications, functional specifications, basic configuration, appearance diagrams, etc., please visit https://www.sokken.co.jp/special/202309/entry708.html.
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basic information
1. Suitable engine: 10kW to 250kW (maximum output) 2. Main pipe inner diameter: φ50mm ±5mm 3. Exhaust gas temperature and pressure: Maximum temperature: 550℃, Maximum pressure: 60kPa, safety valve operates at 70kPa 4. Exhaust pressure sensor: Measurement range: -50kPa to +100kPa, Accuracy: 0.5%FS (±0.5kPa) 5. Exhaust temperature sensor: Measurement range: 0 to 1200℃, Accuracy: 1%FS (±12℃) 6. Surge tank: Capacity: 30L or 40L, #MV is optional 7. Opening and closing valve: Opening and closing speed: within 0.5 seconds 8. Bypass valve: Opening and closing speed: approximately 2 to 10 seconds 9. Safety valve: Valve operation: opens at 70kPa or more 10. External output: Exhaust pressure, exhaust temperature, opening and closing valve (ON/OFF) voltage output 11. Parallel operation signal connection terminal: Master & slave connectors for parallel operation 12. Power supply: AC 85 to 110V / 50 to 60Hz (400VA), AC 220 to 240V / 50 to 60Hz (400VA) specified at the time of order 13. External dimensions: Main unit: W: approximately 950, H: approximately 1450, D: approximately 700 (260kg), Operation unit: W: 230, H: 100, D: 110 (2kg)
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Functional Specifications 1. Main Display Device Display Device: Touch Panel (110x40) Measurement Values Displayed: Exhaust Pressure, Exhaust Temperature, Tank Pressure Operating Modes: Automatic Operation, Automatic Exhaust Pressure Adjustment, Manual Exhaust Pressure Adjustment Settings: Return Count, Judgment Pressure, Delay Timer, Monitoring Level Operating Controls: Start Operation, Stop Operation, Pause Operation Manual Controls: Fully Open/Close Valve, Bypass Valve Open/Close Operation Status: Error Display, Valve Position Display Automatic Operation Process: Display Operating Process in Flowchart 2. Automatic Exhaust Pressure Adjustment (Manual Adjustment Function Available) 1. Connect the vehicle or engine to the device in test condition. 2. Fully open the bypass valve and close the opening and closing valve. 3. Adjust the opening degree of the bypass valve to achieve an exhaust pressure of 35-40 kPa. 3. Automatic Operation Function *If Exhaust Pressure Adjustment is Completed 4. Interlinked Operation: This device can operate multiple units in conjunction. 5. Monitoring Function and Interlocking (For details, please contact us.) Supply Air (Constant) Exhaust Gas Temperature (Constant) Exhaust Gas Pressure (Constant) Reach Time (During Operation) Pressure Recovery Time (During Operation)
Detailed information
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This is a basic configuration diagram.
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This is the exterior diagram (main body).
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This is an exterior diagram (operating unit).
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Company information
Tsukasa Measurement Research Co., Ltd. specializes in products that measure fundamental physical quantities such as pressure and flow, and has contributed to many research and development projects to date. In particular, in the automotive industry, we have developed and manufactured numerous measuring instruments used for performance testing, such as CVS devices, contributing to the advancement of the industry. Please feel free to consult us if you have any requests.