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US 6,474,313 B1Granted
Connection between an integrated pressure management apparatus and a vapor collection canister
AssigneeSiemens Canada Limited
InventorsPaul D. Perry, John A. Gurd
Life of this patent
Estimating the term…
Abstract
An integrated pressure management system manages pressure and detects leaks in a fuel system. The integrated pressure management system also performs a leak diagnostic for the headspace in a fuel tank, a canister that collects volatile fuel vapors from the headspace, a purge valve, and all associated hoses and connections.
Claims13
A volatile fuel vapor collection system, comprising:
- an integrated pressure management apparatus including:
- a housing defining an interior chamber, the housing including first and second ports communicating with the interior chamber;
- a pressure operable device separating the chamber into a first portion and a second portion, the first portion communicating with the first port, the second portion communicating with the second port, the pressure operable device permitting fluid communication between the first and second ports in a first configuration and preventing fluid communication between the first and second ports in a second configuration;
- and
- a signal chamber in fluid communication with the first portion of the interior chamber, the pressure operable device further separating the signal chamber from the second portion of the interior chamber;
- a collection canister in fluid communication with the first portion of the interior chamber;
- and
- a connection establishing the fluid communication between the integrated pressure management apparatus and the collection canister.
5 more elements
Dependencies are inferred from the claim text.