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Oil conveying and storage device and gearbox having such oil conveying and storage device

A storage device, transmission technology, applied in transmission parts, mechanical equipment, belts/chains/gears, etc., can solve problems such as waste and high cost

Inactive Publication Date: 2019-08-27
FLENDER GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] A disadvantage of an intermediate storage device of the type described in DE 10 2009 014 318 A1 is that its geometry must be adapted extremely precisely to the corresponding gear, which in individual cases can be extremely wasteful and entails correspondingly high costs
Another disadvantage is that the intermediate storage is already filled with the transmission start-up and thus in the cold transmission state with oil from the oil sump, which is not desirable

Method used

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  • Oil conveying and storage device and gearbox having such oil conveying and storage device
  • Oil conveying and storage device and gearbox having such oil conveying and storage device
  • Oil conveying and storage device and gearbox having such oil conveying and storage device

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Embodiment Construction

[0021] figure 1 and 2 A transmission 1 according to a first embodiment of the invention is shown. The transmission 1 comprises a transmission housing 2 which delimits an oil sump 3 in a lower region. Furthermore, the transmission 1 has an oil delivery and storage device 4 , which is presently arranged in the interior of the transmission housing 2 and is designed to lower the oil level in the oil sump 3 during operation of the transmission 1 , As will be described in more detail below. The oil delivery and storage device 4 comprises a suction chamber 5 with a variable volume, to which is connected an oil line 6 which fluidly connects the suction chamber 5 with the oil pan 3 . The suction chamber 5 is now delimited by a cylinder housing 7 and a piston 8 movable forwards and backwards within the cylinder housing 7 , which is sealed fluid-tight with respect to the cylinder housing 7 . Furthermore, the oil delivery and storage device 4 comprises a working cylinder 10 provided w...

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Abstract

The invention relates to an oil conveying and storage device (4) for reducing an oil level in an oil sump (3) of a gearbox (1) during operation of the gearbox (1), which includes an intake chamber (5)to which an oil line is connected, and which has a volume that varies in response to the forward and backward movement of a first piston (8); and a work cylinder having a second piston (9), wherein,the second piston (9) is connected with the first piston (8) through a piston rod (11) and is moved in a temperature-dependent manner via a thermal transfer wax (12) such that the volume of the intakechamber (5) is increased as the temperature rises. In addition, the invention relates to a gearbox having such an oil conveying and storage device (4).

Description

technical field [0001] The invention relates to an oil delivery and storage device for lowering the oil level of an oil pan of a transmission during operation of the transmission. Furthermore, the invention relates to a transmission with such an oil delivery and storage device, the transmission having an oil sump. Background technique [0002] Various designs of transmissions with oil lubrication systems are known in the prior art. They generally include an oil sump formed in the lower region of the transmission housing, in which oil collects in the stationary state of the transmission. The oil level of the oil sump is usually selected such that even the smallest gear wheel of the transmission sinks into the oil sump in the stationary state in order to ensure anti-friction properties. This results in crushing and churning losses during operation due to the movement of the gears in the oil. Said crushing and churning losses differ depending on the direction of rotation and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H57/04
CPCF16H57/045F16H57/0447F16H57/0423F16H57/04F16H57/0409F16H57/0424F16H57/0439F16H57/0441F16H57/0452F16H57/0457
Inventor 西蒙·贝卡
Owner FLENDER GMBH