초록 ▼

A pressure relief valve is disclosed for use in air intake tracts of I.C. engine installations. The air valve includes a tubular member having apertures therein covered over by resilient diaphragm elements that, when a negative pressure (vacuum) within the system exceeds a pre-determined level, defl

A pressure relief valve is disclosed for use in air intake tracts of I.C. engine installations. The air valve includes a tubular member having apertures therein covered over by resilient diaphragm elements that, when a negative pressure (vacuum) within the system exceeds a pre-determined level, deflect and enable relief of the negative pressure within the air intake. When the negative pressure returns to normal operating levels, the diaphragm returns to position. The negative pressure within the intake tract can be raised, for example, by an obstruction at the air inlet of the tract.

대표청구항 ▼

1. A relief valve adapted for connecting along a tubular air tract between an air intake connected to said tract and a source of vacuum also connected to said tract, said relief valve comprising: a first tubular member having walls defining a passageway therein, said walls including at least one ape

1. A relief valve adapted for connecting along a tubular air tract between an air intake connected to said tract and a source of vacuum also connected to said tract, said relief valve comprising: a first tubular member having walls defining a passageway therein, said walls including at least one aperture therein covered by a resilient diaphragm, said diaphragm being responsive to negative pressure within said tubular member to relieve negative pressure within said tubular member at a predetermined threshold, said first tubular member being adapted for anchoring along an exterior surface of said tract in sealing engagement thereto.