Patent ID: 11867140
Assignee: DELPHI TECHNOLOGIES IP LIMITED
Field: Chemical engineering (Chemistry)
Classification: CPC F  B | IPC B  F

Claim 0:
1. An evaporative emissions canister comprising:
a casing defining an internal volume therein;
the casing including an inlet and an outlet in fluid communication with the internal volume;
the internal volume including a layer of first adsorbent material and a layer of second adsorbent material, the first adsorbent material having a flow restriction that is lower than the flow restriction of the second adsorbent material;
a fluid flow path defined from the inlet through the internal volume of the casing to the outlet;
the fluid flow path having a cross-sectional area that varies in a direction from the inlet to the outlet, the fluid flow path including a transition zone of changing cross-sectional area in the direction from the inlet to the outlet;
wherein the layer of first adsorbent material is disposed at or directly adjacent to the transition zone, the layer of first adsorbent material is disposed adjacent to and immediately upstream from the layer of second adsorbent material in said direction, and wherein the layer of first adsorbent material spreads a flow of fluid along the fluid flow path into the layer of second adsorbent material.