Three-Position Solenoid Helps Improve Vehicle Emissions

An automotive company needed a solution to open and close the valve in their fuel vapor recirculation system. TLX Technologies designed an effective three-position solenoid.

客户问题

Sealed automobile fuel tanks use fuel vapor recirculation as part of the emissions system. When the engine is not running, the recirculation system pulls fumes out of the fuel tank and stores them in a charcoal canister. Once the engine starts, the system circulates the fumes into the engine to be burned off.

An automotive company needed a solution to open and close the valve that vented fumes between the fuel tank and the charcoal canister.

TLX 解决方案

TLX Technologies designed an efficient three-position solenoid for the fuel vapor recirculation system. The first position closed the vent valve while fueling the car. The second position allowed vapors to be transmitted directly to the engine for consumption. The third position helped divert vapors to the charcoal canister for storage. High push-pull force and compact design produced the fast response needed for each function while consuming no power to hold the valve in each position.

查看设计方案

Three-Position Push Pull Solenoid

Stroke (either direction from center): 1.58 to 25.4 mm
Push-pull force: .03 to 4.5 kgf (1 oz to 10 lbf)
Supply voltage: 3 to 48 Vdc
Duty rating (%ED): 100% ED
Operating temperature range: -40°C to 120°C
Durability: > 10M cycles

TLX提供的任何组件，均可根据客户的不同系统、技术参数等要求进行设计和定制。本网站上的示例仅供说明目的。

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