Vehicle supplemental heating system including spool valve manifold
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B60H-001/02
B60H-001/03
B60H-001/04
B60H-001/22
F24J-003/00
F02N-099/00
출원번호
US-0098061
(2008-04-04)
등록번호
US-8113440
(2012-02-14)
발명자
/ 주소
Sanger, Jeremy J.
Garavoglia, Franco
출원인 / 주소
Ventech LLC
대리인 / 주소
Young Basile Hanlon & MacFarlane PC
인용정보
피인용 횟수 :
1인용 특허 :
95
초록▼
Disclosed herein is an exemplary supplemental heating system including a liquid heat generator having a hydrodynamic chamber for selectively heating a fluid. The supplemental heating system further includes a manifold having an inlet passage fluidly connectable to a discharge passage of a heat excha
Disclosed herein is an exemplary supplemental heating system including a liquid heat generator having a hydrodynamic chamber for selectively heating a fluid. The supplemental heating system further includes a manifold having an inlet passage fluidly connectable to a discharge passage of a heat exchanger, a first discharge passage fluidly connectable to an engine cooling system, and a second discharge passage fluidly connected to an inlet passage of the hydrodynamic chamber. A control valve comprising a spool slideably disposed within the manifold controls distribution of the fluid between the manifold inlet passage and the first manifold discharge passage, and the manifold inlet passage and the manifold second discharge passage.
대표청구항▼
1. A heating apparatus connectable to an engine cooling system of a vehicle, the cooling system including a cooling fluid and a heat exchanger for transferring heat from the cooling fluid to an airstream for heating a passenger compartment of the vehicle, the heating apparatus comprising: a liquid h
1. A heating apparatus connectable to an engine cooling system of a vehicle, the cooling system including a cooling fluid and a heat exchanger for transferring heat from the cooling fluid to an airstream for heating a passenger compartment of the vehicle, the heating apparatus comprising: a liquid heat generator fluidly connectable to the engine cooling system, the liquid heat generator having a hydrodynamic chamber operable for selectively heating the cooling fluid present within the hydrodynamic chamber, and an inlet passage fluidly connected to the hydrodynamic chamber;a manifold comprising a cavity fluidly connected to manifold inlet passage, a first manifold discharge passage, and a second manifold discharge passage, the manifold inlet passage fluidly connectable to a discharge passage of the heat exchanger, the first manifold discharge passage fluidly connectable to the engine cooling system, and the second manifold discharge passage fluidly connected to the inlet passage of the hydrodynamic chamber; anda control valve comprising a spool slideably disposed within the manifold cavity, the spool moveable between a first position for establishing a fluid path between the manifold inlet passage and the first manifold discharge passage, and a second position for establishing a fluid path between the manifold inlet passage and the second manifold discharge passage, the spool comprising a bypass piston and a modulating piston slideably disposed within the bypass piston, the bypass piston defining at least one orifice for selectively connecting the manifold inlet passage fluidly to the first manifold discharge passage when the spool is positioned in the first position, the modulating piston being selectively movable relative to the bypass piston between a first position, in which the modulating piston substantially blocks a fluid path through the at least one orifice, and a second position, in which the fluid path through the at least one orifice is at least partially open. 2. The heating apparatus of claim 1, wherein the control valve further comprises an actuator connected to the spool, the actuator operable for moving the spool between the first and second positions. 3. The heating apparatus of claim 2, wherein the modulating piston is fixedly attached to the actuator. 4. The heating apparatus of claim 3, wherein the modulating piston is at least partially disposed within the bypass piston. 5. The heating apparatus of claim 1, wherein the bypass piston comprises a first flange slideably engaging a wall of the cavity of the manifold, and the modulating piston comprises a second flange slideably engaging the wall of the cavity of the manifold, the first and second flanges at least partially defining a second cavity fluidly connected to the second manifold discharge passage. 6. The heating apparatus of claim 5, wherein the first flange substantially blocks the fluid path between the manifold inlet passage and the second manifold discharge passage when the spool is positioned in the first position. 7. The heating apparatus of claim 5, wherein the first flange substantially blocks the fluid path between the manifold inlet passage and the first manifold discharge passage when the spool is positioned in the second position. 8. The heating apparatus of claim 1, wherein the modulating piston and the bypass piston are slideably disposed within the cavity of the manifold. 9. The heating apparatus of claim 1, wherein the modulating piston is movable between the first position in which at least a portion of the modulating piston overlays the at one orifice to substantially block fluid from passing through the at least one orifice, and the second position in which the modulation piston is displaced away from the at least one orifice to establish at least a partially open fluid path through the at least one orifice between the manifold inlet passage and the first manifold discharge passage when the bypass piston is arranged in the second position. 10. The heating apparatus of claim 1, wherein a fluid path is established between the manifold inlet passage and the first manifold discharge passage, and between the manifold inlet passage and the second discharge passage when the bypass piston and the modulating piston are arranged in their respective second positions. 11. A heating system for providing heat to a passenger compartment of a vehicle, the heating system comprising: an engine cooling system including a cooling fluid;a hydrodynamic chamber fluidly connected to the engine cooling system, the hydrodynamic chamber operable for selectively heating the cooling fluid present within the hydrodynamic chamber, the hydrodynamic chamber having an inlet port;a heat exchanger operable for transferring heat from the cooling fluid to an airstream deliverable to the passenger compartment;a fluid distribution module having a hollow cavity, an inlet port fluidly connecting the cavity to a discharge port of the heat exchanger, a first discharge port fluidly connecting the cavity to the engine cooling system, and a second discharge port fluidly connecting the cavity to the inlet port of the hydrodynamic chamber; anda spool valve slideably disposed within the cavity, the spool valve moveable between a first position for establishing a fluid path between the discharge port of the heat exchanger and the engine cooling system, and a second position for establishing a fluid path between the discharge port of the heat exchanger and the inlet port of the hydrodynamic chamber, the spool valve comprising a bypass piston and a modulating piston slideably disposed within the bypass piston, both the bypass piston and the modulating piston slideably disposed within the cavity of the fluid distribution module, the bypass piston defining at least one orifice operable for fluidly connecting the inlet port of the fluid distribution module to the first discharge port of the fluid distribution module, wherein the modulating piston is selectively movable between a first position, in which the modulating piston substantially blocks a fluid path through the at least one orifice between the inlet port of the fluid distribution module and the first discharge passage of the fluid distribution module when the spool valve is arranged in its second position, and a second position, in which the modulating piston is displaced relative to its first position to at least partially open the fluid path through the at least one orifice when the spool valve is arranged in its second position. 12. The heating apparatus of claim 11, further comprising an actuator operably connected to the modulating piston, the actuator operable for selectively moving the bypass piston between its first and second positions. 13. The heating system of claim 11, wherein the bypass piston includes a flange slideably engaging a wall of the cavity of the fluid distribution module and the modulating piston includes a flange slideably engaging the wall of the cavity of the fluid distribution module, the flange of the bypass piston and the flange of the modulating piston at least partially defining a second cavity fluidly connected to the inlet port of the hydrodynamic chamber. 14. The heating apparatus of claim 13, wherein the first manifold discharge passage is fluidly connected to the fluid cavity at least partially defined by the first and second flanges when the bypass piston is arranged in its first position and when the bypass piston is arranged in its second position. 15. The heating system of claim 11, wherein the spool valve substantially blocks a fluid path between the inlet port of the fluid distribution module and the second discharge port of the fluid distribution module when the spool valve is arranged in its first position. 16. The heating system of claim 11, wherein the spool valve substantially blocks a fluid path between the inlet port of the fluid distribution module and the first discharge port of the fluid distribution module when the spool valve is arranged in its second position.
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