US 5,852,846 A · Windshield airstream deflector for vehicles

Abstract

A windshield airstream deflector for vehicles which projects a blanket of fast moving air over the vehicle's windshield. The blanket of fast moving air is a barrier which prevents rain, snow, freezing rain or sleet from impacting the windshield. A turbine accelerates fresh air over the windshield via windshield ducts. A heating element is selectively operated to heat the air to aid defrosting of the windshield. Attached to the end of the windshield duct is a windshield exhaust duct which distributes the blanket of fast moving air equally over the windshield. An electrical heating element is disposed on the windshield exhaust duct to prevent or dispel any buildup of ice on the windshield exhaust duct. Power to drive the turbine comes from either the engine via a belt attached to the engine and turbine via a shaft, a direct current motor which has a battery as the power supply, or from the vehicle exhaust system via a dual turbine.

Claims18

Dependent claims

A windshield airstream deflector for motor vehicles having a windshield, comprising:

a multi-stage turbine for compressing ambient air to a high pressure and high velocity compressed air, said multi-stage turbine having an air intake for receiving ambient air and an exhaust, port for expulsion of compressed air;
a powering means for driving said multi-stage turbine;
means for selectively controlling operation of said multi-stage turbine;
an output duct for ducting said compressed air from said exhaust port;
and,
a windshield exhaust duct attached to said turbine output duct and positioned on the motor vehicle proximately below a windshield for dispensing a volume of said compressed air from said turbine substantially equally over the entire length of the windshield of the motor vehicle, said windshield exhaust duct including a body defining an air passage having a neck flaring into an enlarged cavity exiting at a trailing edge of said body and a plurality of air flow guides originating proximate to said neck and terminating proximate to said trailing edge, each of said plurality of air flow guides proportionally spaced apart from one another across said enlarged cavity to define a plurality of widening channels within said enlarged cavity.

3 more elements

A windshield airstream deflector for motor vehicles having an exhaust system including an exhaust channel for expelling exhaust gases, comprising;

a shunt from the exhaust channel for by-passing exhaust gases through said shunt;
valve means for selectively directing exhaust gases from said exhaust channel through said shunt;
a turbo unit, comprising
a multi-stage turbine for compressing ambient air to a high pressure and high velocity compressed air, said multi-stage turbine having an air intake for receiving ambient air and an exhaust port for expulsion of compressed air, and
a first impeller disposed in said shunt for driving said multi-stage turbine, said impeller rotably mounted within said shunt and responsive to exhaust gas pressure such that said impeller rotates;
an output duct for ducting said compressed air from said exhaust port;
and,
an exhaust duct attached to said turbine output duct and positioned on the motor vehicle proximately below a windshield, said exhaust duct for dispensing a volume of said compressed air from said turbine substantially equally over the entire length of the windshield of the motor vehicle.

5 more elements

Dependencies are inferred from the claim text.

Windshield airstream deflector for vehicles

Life of this patent

Windshield airstream deflector for vehicles

Life of this patent

Abstract

Claims18