B - Operations – Transporting – 60 – K
Patent
B - Operations, Transporting
60
K
B60K 15/035 (2006.01) F02M 25/08 (2006.01) G01M 3/26 (2006.01)
Patent
CA 2536600
An evaporative emission control and leak detection system for a vehicle is provided. The system includes an integrated valve module in fluid communication with a carbon canister and atmosphere. The module is arranged to vent the system when exposed to predetermined high negative and positive pressure conditions. The module includes a switch mechanism having a spring biasing member arranged to bias the switch mechanism to an open position. The switch is operable to indicate when the system is in a low negative pressure condition. The switch also includes a negative pressure valve coupled to a fluid passage between the canister, the atmosphere and the switch, and a positive pressure valve coupled to a fluid passage between the canister and atmosphere that bypasses the negative pressure valve and switch. The negative and positive pressure valves are positioned in a stacked arrangement in the integrated valve module.
Chrysler Group Llc
Daimlerchrysler Corporation
Marks & Clerk
LandOfFree
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