Flexible film cartridge with balanced effort
AssigneeDelphi Technologies, Inc.
InventorsMark Joseph Parisi, Gerald M. Goupil, Jr., Stephan Michael Vetter
Life of this patent
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Abstract
An HVAC system including a housing, an evaporator assembly, a heater core assembly, an air inlet assembly, a fan assembly, and a film valve assembly including first and second rollers, wherein each roller includes a biasing member with a constant force urging the biasing members to rotate and the biasing members are biased in opposite directions.
Claims38
A film valve assembly for a heating, ventilation and air conditioning (HVAC) system comprising:
- a frame;
- a first roller disposed on said frame;
- a first biasing device continually urging said first roller to rotate in a first direction under a first constantly applied force;
- a second roller disposed on said frame;
- a second biasing device continually urging said second roller to rotate in a second direction under a second constantly applied force;
- and
- a film valve extending between said rollers for controlling air flow with a first end disposed on said first roller and a second end disposed on said second roller.
In a heating, ventilation and air conditioning (HVAC) assembly for a vehicle comprising:
- a housing;
- an evaporator assembly coupled to said housing;
- a heater core assembly coupled to said evaporator assembly and said housing;
- an air inlet assembly coupled to said evaporator assembly;
- a fan assembly disposed on said air inlet assembly;
- and
- a film valve assembly disposed on said housing for defining an air mixing chamber therebetween and having a frame, a first roller disposed on said frame, a first biasing device continually urging said first roller to rotate in a first direction under a first constantly applied force, a second roller disposed on said frame, a cap disposed on said frame and having one of said first and second rollers disposed thereon, and a film valve defining an aperture and extending between said rollers with a first end disposed on said first roller and a second end disposed on said second roller, the improvement comprising a second biasing device continually urging said second roller to rotate in a second direction under a second constantly applied force.
A method of directing air flow in a heating, ventilation and air conditioning (HVAC) assembly for a vehicle, wherein the HVAC assembly includes a housing, an evaporator assembly coupled to the housing, a heater core assembly coupled to the evaporator assembly and the housing, an air inlet assembly coupled to the evaporator assembly, a fan assembly disposed on said air inlet assembly, and a film valve assembly disposed on the HVAC assembly for defining an air mixing chamber therebetween and having a frame including first and second segments, first and second rollers disposed on the frame, first and second biasing devices, and a film valve having a first end disposed on the first roller and a second end disposed on the second roller, comprising the steps of:
- continually urging the first roller to rotate in a first direction under a first constantly applied force;
- continually urging the second roller to rotate in a second direction under a second constantly applied force;
- and
- extending the film valve between first and second rollers.
Dependencies are inferred from the claim text.