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Q1: Qual é a identificação do produto e o escopo aplicável do 2475212/247-5212 throttle motor for E312c/E320c?
A1: Este produto é o 2475212 (247-5212 with hyphen) excavator throttle motor—an OEM-compatible core electronic control component exclusively engineered for Caterpillar E312c (12-classe de tonelada) and E320c (20-classe de tonelada) mid-size excavators:
- E312c: Matched with the Caterpillar 3046T 4-cylinder diesel engine (potência nominal: 70.1kW @ 1950 rpm), used for small-scale earthmoving, engenharia municipal, e construção residencial (operação contínua de carga leve a média);
- E320c: Paired with the Caterpillar 3066 6-motor diesel de cilindro (potência nominal: 103kW @ 2.000 rpm), deployed in infrastructure construction, obras de fundação, e extração em pequena escala (operação contínua de carga média a pesada).
As a critical throttle control part, it replaces faulty or worn-out OEM throttle motors, ensuring precise engine speed regulation for E312c/E320c. It complies with Caterpillar’s original electrical and mechanical specifications, suitable for routine maintenance, substituição pós-falta (por exemplo, bloqueio do motor, falha de sinal, imprecisão na regulação da velocidade), and fleet electronic control system upgrades.
2º trimestre: Quais funções principais o 2475212/247-5212 throttle motor perform for E312c/E320c?
A2: The throttle motor acts as the executive component of the excavator’s engine speed control system, delivering Caterpillar-specific speed regulation functions with seamless integration with the machine’s ECM:
Funções principais (Ambos os modelos)
- Precision engine speed adjustment: Receives electrical signals from the E312c/E320c’s ECM to drive the throttle linkage, realizing stepless speed regulation from idle (600rpm) to rated speed (1950rpm for E312c, 2000rpm for E320c), with a speed control accuracy of ±10rpm for stable engine power output.
- Idle speed stabilization: Automatically maintains a constant idle speed (600–700rpm) during non-working periods, reducing fuel consumption and engine idle wear for E312c/E320c.
- Load-adaptive speed regulation: Synchronizes with the excavator’s hydraulic system load signals; when the E320c engages in heavy digging or E312c handles medium-load earthmoving, it adjusts engine speed in real time to match hydraulic power demands, avoiding stalling or power loss.
- Fault self-protection: Integrates overcurrent, superaquecimento, and position sensor fault protection functions. If the motor encounters jamming (por exemplo, due to cable aging or mechanical obstruction) or voltage anomalies, it triggers a signal to the ECM, which then activates a limp-home mode (fixed idle speed) to protect the engine and motor itself.
- ECM communication & diagnostic feedback: Transmits real-time throttle position data to the ECM via a built-in position sensor, enabling the ECM to monitor motor status and display Diagnostic Trouble Codes (DTCs) for faults (por exemplo, motor open circuit, falha do sensor de posição) on the excavator’s monitor for quick troubleshooting.
Otimizações Específicas do Modelo
- E312c: Optimized for light-load scenarios, with a smaller torque output (matching the 3046T engine’s throttle linkage load) and prioritized fuel efficiency during low-speed operation;
- E320c: Enhanced with higher torque to drive the 3066 engine’s throttle mechanism, ensuring fast and stable speed adjustment during medium-heavy load operations (por exemplo, foundation pit excavation).
3º trimestre: Quais são os principais parâmetros técnicos do 2475212/247-5212 motor do acelerador (E312c/E320c matched)?
A3: All technical parameters are calibrated to Caterpillar E312c/E320c’s electrical and mechanical requirements for throttle control:
| Parâmetro | E312c (2475212/247-5212 Motor do acelerador) | E320c (2475212/247-5212 Motor do acelerador) |
|---|---|---|
| Tensão operacional | CC 24V (sobretensão: 32V máx.; subtensão: 18Vmin) | CC 24V (sobretensão: 34V máx.; subtensão: 17Vmin) |
| Torque nominal | 2.5N·m | 3.0N·m |
| Faixa de regulação de velocidade | 600–1950rpm (matches 3046T engine) | 600–2.000 rpm (partidas 3066 motor) |
| Control Accuracy | ±10rpm | ±8rpm |
| Tempo de resposta | ≤0.3s (speed adjustment from idle to rated) | ≤0.25s (speed adjustment from idle to rated) |
| Position Sensor Type | Potentiometer-type (analog signal output) | Potentiometer-type (analog signal output) |
| Classificação de proteção | IP65 (water/dust proof for engine bay) | IP67 (enhanced sealing for heavy-load engine bay) |
| Faixa de temperatura operacional | -30℃ ~ +80 ℃ | -40℃ ~ +85 ℃ |
| Resistência à vibração | ≤15g (10–2000Hz) | ≤20g (10–2000Hz) |
| Consumo de energia | ≤25W (carga nominal) | ≤30W (carga nominal) |
| Compatibilidade de Interface | 3046T engine ECU/monitor system | 3066 engine ECU/ |
