Wheel with electromechanical conversion system
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B60C-023/02
B60C-023/04
출원번호
US-0322017
(2010-05-25)
등록번호
US-8607627
(2013-12-17)
우선권정보
FR-09 53412 (2009-05-25)
국제출원번호
PCT/EP2010/057188
(2010-05-25)
§371/§102 date
20111122
(20111122)
국제공개번호
WO2010/136470
(2010-12-02)
발명자
/ 주소
Hilt, Thierry
Mourey, Bruno
출원인 / 주소
Commissariat a l'Energie Atomique et aux Energies Alternatives
대리인 / 주소
Occhiuti & Rohlicek LLP
인용정보
피인용 횟수 :
0인용 특허 :
3
초록▼
A wheel includes a tire, an electrical device requiring power for operation, and a conversion system for providing electrical energy for powering the electrical device. The electrical energy is obtained from conversion of a difference between pressure of a gas confined under pressure within the tire
A wheel includes a tire, an electrical device requiring power for operation, and a conversion system for providing electrical energy for powering the electrical device. The electrical energy is obtained from conversion of a difference between pressure of a gas confined under pressure within the tire and ambient pressure of air outside the tire. The conversion system includes an inlet nozzle fluidly connected to the gas confined under pressure in the tire, an outlet nozzle fluidly connected to the air outside the tire, a movable arm configured to be moved by gas expanding while flowing from the inlet nozzle to the outlet nozzle, and an electromechanical transducer capable of converting mechanical energy from movement of the arm into electrical energy used to power the electrical device.
대표청구항▼
1. A wheel comprising a tire, an electrical device requiring power for operation, and a conversion system for providing electrical energy for powering the electrical device, the electrical energy being obtained from conversion of a difference between pressure of a gas confined under pressure within
1. A wheel comprising a tire, an electrical device requiring power for operation, and a conversion system for providing electrical energy for powering the electrical device, the electrical energy being obtained from conversion of a difference between pressure of a gas confined under pressure within the tire and ambient pressure of air outside the tire, wherein the conversion system comprises: an inlet nozzle fluidly connected to the gas confined under pressure in the tire, an outlet nozzle fluidly connected to the air outside the tire, at least one movable arm configured to be moved by gas expanding while flowing from the inlet nozzle to the outlet nozzle, and an electromechanical transducer configured for converting mechanical energy from movement of the arm into electrical energy used to power the electrical device. 2. The wheel of claim 1, further comprising a bottleneck for limiting flow rate of gas that flows from the inlet nozzle to the outlet nozzle to at least 10−5 cubic meters per second. 3. The wheel of claim 1, further comprising a bottleneck for limiting flow rate of gas that flows from the inlet nozzle to the outlet nozzle to at least 10−6 cubic meters per second. 4. The wheel of claim 1, wherein the outlet nozzle is fluidly connected to the ambient air outside the tire by a hole configured for limiting the flow rate of the outwardly escaping gas to less than 10−8 cubic meters per second. 5. The wheel of claim 1, wherein the electrical device comprises a sensor for sensing a difference between pressure in the gas confined under pressure inside the tire and pressure of ambient air present outside the tire. 6. The wheel of claim 1, further comprising a transducer for converting the mechanical energy of movement of the arm into electrical energy to be used as a physical quantity representing the difference in pressures. 7. The wheel of claim 5, further comprising a wireless transmitter configured for transmitting a value representing the measured difference in pressures to a remote receiver by a wireless link, the transmitter being powered solely by electrical energy produced by the conversion system. 8. The wheel of claim 1, wherein the conversion system comprises at least two movable arms, wherein, while passing from the inlet nozzle to the outlet nozzle, fluid flows between the arms and moves at least one of the arms relative to another of the arms, wherein, the arms are configured to define, in motion, a pocket of fluid that moves away from the inlet nozzle and toward the outlet nozzle, and wherein the pocket of fluid increases in volume as it proceeds from the inlet nozzle to the outlet nozzle. 9. The wheel of claim 8, wherein the arms form spirals imbricated with each other. 10. The wheel of claim 1, wherein the conversion system comprises a micro-system equipped with two movable arms between which there flows fluid that moves the arms relative to each other while passing from the inlet nozzle into the outlet nozzle, the arms being formed in a spiral shape and movable, the arms, in motion, defining a pocket of fluid that increases in volume while moving away from the inlet nozzle toward the outlet nozzle.
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이 특허에 인용된 특허 (3)
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