Diaphragm for an integrated pressure management apparatus
First Claim
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1. A diaphragm for separating signal and interior chambers in a housing of an integrated pressure management apparatus, the diaphragm comprising:
- a generally rigid central portion; and
a relatively flexible annulus having an inner perimeter fixed to an insert and an outer perimeter adapted for sealingly engaging the housing, the outer perimeter engaging the housing to seal a first housing part defining the signal chamber with respect to a second housing part defining the interior chamber in the integrated pressure management apparatus.
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Abstract
A diaphragm for 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.
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Citations
9 Claims
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1. A diaphragm for separating signal and interior chambers in a housing of an integrated pressure management apparatus, the diaphragm comprising:
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a generally rigid central portion; and
a relatively flexible annulus having an inner perimeter fixed to an insert and an outer perimeter adapted for sealingly engaging the housing, the outer perimeter engaging the housing to seal a first housing part defining the signal chamber with respect to a second housing part defining the interior chamber in the integrated pressure management apparatus. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification