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Starting device having a throttle plate

A technology of starting device and throttling plate, which is applied in the direction of fluid transmission device, transmission device, multi-ratio transmission device, etc.

Inactive Publication Date: 2015-01-14
GM GLOBAL TECH OPERATIONS LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] While these starter devices are useful for their intended purpose, there remains room in the prior art for starter devices that improve the fuel efficiency of a motor vehicle by reducing the load on the engine during idling of the motor vehicle. efficient packaging, cost and complexity

Method used

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  • Starting device having a throttle plate
  • Starting device having a throttle plate

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Embodiment Construction

[0045] The following description is merely illustrative in nature and not intended to limit the invention, application or use.

[0046] refer to figure 1, an exemplary powertrain of a motor vehicle is indicated generally at 10 . Powertrain 10 includes an engine 12 interconnected with a transmission 14 via a starting device 16 . Engine 12 may be a conventional internal combustion or electric motor, or any other type of prime mover without departing from the scope of the present invention. The engine 12 provides drive torque to the transmission 14 through a curved plate 18 or other connection to the front cowl member 20 of the starter 16 .

[0047] In general, the transmission 14 receives drive torque from a starter device 16 and outputs the drive torque to a transmission output shaft (not shown). A gear and clutch arrangement or gearbox (not shown) is provided between the starter device 16 and the transmission output shaft. A gearbox includes multiple gear sets, multiple c...

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Abstract

A starting device for a motor vehicle includes a pump connected to a prime mover and a turbine connected to a turbine shaft. The pump and turbine are hydrodynamically connected. A stator assembly is disposed between the pump and the turbine. The stator assembly houses a slidable throttle plate. In a first position, the throttle plate partially blocks a return fluid flow from the stator assembly, thereby effectively reducing the capacity of the starting device. In a second position, the throttle plate does not reduce the capacity of the starting device. The throttle plate position is a function of a balance of forces acting on the throttle plate by a biasing member and a flow of hydraulic fluid contacting the throttle plate.

Description

[0001] cross reference [0002] This application claims the benefit of US Provisional Application No. 61 / 434589, filed January 20, 2011. The entire contents of the above application are hereby incorporated by reference. technical field [0003] The present invention relates to a starting device for an automatic transmission, and more particularly to a hydraulic starting device for a transmission with an integrated throttle plate. Background technique [0004] The statements in this section merely provide background information related to the present disclosure and may or may not constitute prior art. [0005] Hydraulic starting devices are often employed in motor vehicles to improve the performance characteristics of the vehicle. One device includes a hydraulically activated or primed device. A hydrodynamic starter is similar to a standard torque converter and typically consists of three rotating elements: a pump, a turbine, and a stator. The pump is mechanically driven ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H41/04F16H41/24F16H41/26
CPCF16H41/26F16H2045/0278F16H2045/0205F16H45/02F16H2045/0294F16H2200/0021F16H2200/0034
Inventor V.M.罗西斯T.R.斯克日克
Owner GM GLOBAL TECH OPERATIONS LLC