Patent ID: 8931460
Filing Date: 2015-01-13
Classification: B01D,F02M

Abstract:
1. A fuel vapor recovery system comprising: a fuel tank; an adsorbent canister connected with the fuel tank and filled with an adsorbent capable of adsorbing fuel vapor; a separator having a housing and a separation membrane that divides an inner space of the housing into a receiving chamber and a permeation chamber and being connected with the fuel tank such that the fuel tank is fluidly connected with the receiving chamber, the separation membrane allowing fuel vapor to pass therethrough; a negative pressure supplier fluidly connected with the adsorbent canister via the permeation chamber of the separator and configured to apply negative pressure to the adsorbent canister in order to remove the fuel vapor from the adsorbent canister; and wherein when the negative pressure supplier applies negative pressure to the adsorbent canister, purge gas flows from the adsorbent canister into the fuel tank via the permeation chamber of the separator in order to purge the permeation chamber.