[특허]Dual clutch type power transmission with alternative torque transmission path providing alternative ratios

Dual clutch type power transmission with alternative torque transmission path providing alternative ratios 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F16H-003/08 F16H-003/00 F16H-003/16
출원번호	US-0387527 (2013-03-22)
등록번호	US-9470292 (2016-10-18)
국제출원번호	PCT/CA2013/050236 (2013-03-22)
국제공개번호	WO2013/138941 (2013-09-26)
발명자 / 주소	Andreasen, Kenneth Hartmann Deagle, Jonathan David Williams, Bradley Edward
출원인 / 주소	Pacific Rim Engineered Products (1987) Ltd.
대리인 / 주소	Oyen Wiggs Green & Mutala LLP
인용정보	피인용 횟수 : 0 인용 특허 : 88

초록 ▼

A dual clutch type transmission has first and second sections which respectively include first and second clutches. The clutches may be operated to allow torque transfer from an input to an output by way of the first section or the second section. One or more additional gear ratios is provided by a torque transfer pathway connecting the first and second sections such that torque is delivered from the input to the output by way of one or more stages of the first section and one or more stages of the second section. The additional gear ratios may comprise extra low gear ratios. Some embodiments provide transmissions suitable for driving pumps for use in hydraulic fracturing of geological formations.

대표청구항 ▼

1. A transmission comprising: an input;an output comprising one or more gears;a first transmission section providing one or more stages of gearing and configurable to provide one of a first plurality of gear ratios between the input and the output;a second transmission section providing one or more stages of gearing configurable to provide one or more second gear ratios between the input and the output;a first clutch operable to selectively couple the input to the first transmission section;a second clutch operable to selectively couple the input to the second transmission section; and,a torque transfer mechanism selectively operable to transfer torque from the first transmission section to the second transmission section to provide an alternative torque transmission path from the input to the output that includes at least one of the one or more stages of gearing of the first transmission section and at least one of the one or more stages of gearing of the second transmission section and provides one or more gear ratios between the input and the output that is different from the first plurality of gear ratios and the one or more second gear ratios;wherein: the first transmission section comprises a first shaft and a first torque coupling connecting the first shaft to drive the output, the first torque coupling comprising one or more gears carried by the first shaft in constant mesh with the one or more gears of the output wherein the transmission comprises a mechanism for selectively engaging or disengaging the first torque coupling;the second transmission section comprises a second shaft and a second torque coupling connecting the second shaft to drive the output, the second torque coupling comprising one or more gears carried by the second shaft in constant mesh with the one or more gears of the output. 2. A transmission according to claim 1 wherein the one or more stages of gearing of the first transmission section comprise one or more stages of gear reduction. 3. A transmission according to claim 2 wherein the alternative transmission path comprises at least one stage of gear reduction provided by one of the one or more stages of gearing of the first transmission section and at least one stage of gear reduction provided by one of the one or more stages of gearing of the second transmission section. 4. A transmission according to claim 1 wherein the alternative transmission path includes reduction gearing in a portion of the alternative transmission path connecting components of the first and second transmission sections. 5. A transmission according to claim 1 wherein: the torque transfer mechanism comprises a gear train configured to transfer torque between the first and second shafts. 6. A transmission according to claim 5 wherein the gear train comprises first and second gears on the first and second shafts respectively and a third gear on a jack-shaft parallel to the first and second shafts, the third gear in mesh with each of the first and second gears. 7. A transmission according to claim 6 wherein the second gear is one of the one or more gears of the second shaft that is in constant mesh with an output of the second clutch. 8. A transmission according to claim 6 wherein the first and second shafts and the output are arranged in a vee configuration. 9. A transmission according to claim 5 wherein outputs of the first and second clutches are concentric with one another. 10. A transmission according to claim 9 wherein the output comprises an output shaft concentric with the outputs of the first and second clutches. 11. A transmission according to claim 1 wherein the gear ratios of the first plurality of gear ratios and the at least one second gear ratio, when taken in order of increasing gear ratio, alternate between the first plurality of gear ratios and the at least one second gear ratio. 12. A transmission according to claim 1 wherein the one or more gear ratios of the alternative transmission path are lower than the first plurality of gear ratios and the at least one second gear ratio. 13. A transmission according to claim 1 wherein the alternative transmission path includes a transfer portion connecting the first and second shafts. 14. A transmission according to claim 1 wherein the alternative transmission path comprises a fluid drive comprising a pump driven by a component of the first transmission section and a fluid motor driving a component of the second transmission section. 15. A transmission according to claim 1 wherein the alternative transmission path comprises a belt drive or a chain drive. 16. A transmission according to claim 1 wherein the alternative transmission path comprises a gear train. 17. A method for configuring a transmission to provide an alternative gear ratio wherein the transmission comprises: an input;an output;a first transmission section providing one or more stages of gearing and configurable to provide one of a first plurality of gear ratios between the input and the output;a second transmission section providing one or more stages of gearing configurable to provide one of a second plurality of gear ratios between the input and the output;a first clutch operable to selectively couple the input to the first transmission section;a second clutch operable to selectively couple the input to the second transmission section;wherein: the first transmission section comprises a first shaft and a first torque coupling connecting the first shaft to drive the output, the first torque coupling comprising one or more gears carried by the first shaft in constant mesh with the one or more gears of the output wherein the transmission comprises a mechanism for selectively engaging or disengaging the first torque coupling;the second transmission section comprises a second shaft and a second torque coupling connecting the second shaft to drive the output, the second torque coupling comprising one or more gears carried by the second shaft in constant mesh with the one or more gears of the output;the method comprising disengaging the first torque coupling and configuring a torque transfer mechanism to transfer torque from the first shaft to the second shaft to provide an alternative torque transmission path from the input to the output that includes at least one of the one or more stages of gearing of the first transmission section and at least one of the one or more stages of gearing of the second transmission section and provides one or more gear ratios between the input and the output that is different from the gear ratios of the first and second pluralities of gear ratios. 18. A method according to claim 17 wherein the one or more stages of gearing of the first transmission section comprise one or more stages of gear reduction and one or more stages of gearing of the second transmission section comprise one or more stages of gear reduction.

이 특허에 인용된 특허 (88)

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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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Dual clutch type power transmission with alternative torque transmission path providing alternative ratios 원문보기

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Dual clutch type power transmission with alternative torque transmission path providing alternative ratios 원문보기

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