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US 2006/0237185 A1Published application
Snap-in flapper valve assembly
AssigneeDana Canada Corporation
InventorYuri Peric
Life of this patent
Estimating the term…
Abstract
A flapper valve snaps into position in an inlet or outlet manifold of a heat exchanger to provide by-pass flow in cold flow or pressure spike conditions. The flapper valve includes a cradle having opposed spring fingers for retaining the valve in position. The cradle has a fluid port therein, and a spring flapper is attached to the cradle to cover the fluid port to control the by-pass flow therethrough.
Claims20
A flapper valve assembly for use with a fluid device having a flow passage defined by a peripheral wall formed with opposed recesses therein, the flapper valve assembly comprising:
- a cradle, dimensioned to be located slidably in the flow passage to block flow through the flow passage, the cradle having a fluid port therein to allow flow therethrough and thus through the flow passage;
- the cradle having opposed, resilient, outwardly disposed fingers adapted to engage the flow passage opposed recesses and retain the cradle in position in the flow passage;
- a flapper having a mounting part secured to the cradle, and a hinged tongue part that includes a blocking portion, the tongue part being moveable from a first position where the blocking portion at least partially closes the fluid port, to a second position where the blocking portion opens the fluid port;
- and
- bias means for urging the tongue part into the first position.
2 more elements
A heat exchanger comprising:
- (a) a heat exchange element including an inlet manifold, an outlet manifold and flow passages therebetween for the passage of one heat exchange fluid through the heat exchange element;
- (b) said inlet and outlet manifolds having peripheral walls defining opposed recesses formed therein;
- (c) a cradle adapted to be located slidably in one of the inlet and outlet manifolds, the cradle being dimensioned to block flow through said one manifold, the cradle defining a fluid port for the passage of fluid through the cradle, the cradle having opposed, resilient, outwardly disposed fingers engaging said opposed recesses in said one manifold peripheral wall to retain the cradle in position in said one manifold;
- and
- (d) a flapper having a mounting part secured to the cradle and a hinged resilient tongue part extending from the mounting part and disposed to at least partially restrict flow through the cradle fluid port, the tongue part being movable through flexure of the tongue part, to an open configuration, allowing increased flow through the cradle fluid port.
2 more elements
Dependencies are inferred from the claim text.