Visual telltale indicator which includes a pressure control device
AssigneeBrunswick Corporation
InventorsChristopher J. Taylor, Edward J. Alyanak
Life of this patent
Estimating the term…
Abstract
A telltale mechanism is provided with a valve that allows it to perform a dual function of providing a visual indicator of the operation of the cooling system of an engine and relieving water pressure within the cooling jacket of the engine. The valve provides a first fluid path through which a telltale stream is intended to flow and a second fluid path through which a pressure relief water stream is allowed to flow to maintain the pressure within the water jacket of an engine to a magnitude below a predetermined threshold.
Claims18
A marine propulsion system, comprising:
- an engine having a cooling jacket;
- and
- an outlet conduit connected in fluid communication with said cooling jacket and configured to direct a stream of cooling fluid away from said cooling jacket, said outlet conduit being configured to define a first fluid path and a second fluid path for directing said cooling fluid away from said cooling jacket, said second fluid path being dependant on a differential pressure between a first pressure within said cooling jacket and a second pressure downstream from said outlet conduit.
A marine propulsion system, comprising:
- an engine having a cooling jacket;
- a telltale conduit connected in fluid communication with said cooling jacket and configured to direct a stream of cooling fluid away from said cooling jacket, said telltale conduit being configured to define a first fluid path and a second fluid path for directing said cooling fluid away from said cooling jacket, said second fluid path being dependant on a differential pressure between a first pressure within said cooling jacket and a second pressure downstream from said telltale conduit;
- and
- a valve connected in fluid communication with said telltale conduit, said valve being configured to control the magnitude of fluid flow through said second path as a function of said differential pressure between said first pressure within said cooling jacket and said second pressure downstream from said telltale conduit.
A marine propulsion system, comprising:
- an engine having a cooling jacket;
- a telltale conduit connected in fluid communication with said cooling jacket and configured to direct a visible stream of cooling fluid away from said cooling jacket, said telltale conduit being configured to define a first fluid path and a second fluid path for directing said cooling fluid away from said cooling jacket, said second fluid path being dependant on a differential pressure between a first pressure within said cooling jacket and a second pressure downstream from said telltale conduit;
- and
- a valve connected in fluid communication with said telltale conduit, said valve being configured to control the magnitude of fluid flow through said second path as a function of said differential pressure between said first pressure within said cooling jacket and said second pressure downstream from said telltale conduit, said valve comprising an opening and a closure mechanism which blocks said opening and said second path when said differential pressure is less than a preselected magnitude.
Dependencies are inferred from the claim text.