Compressed air supply system with less required maintenance
A technology for compressing air and supplying equipment, which is applied in the direction of mechanical equipment, liquid variable capacity machinery, pump control, etc., and can solve problems such as failure of the transmission device and the need for the transmission device to go to the factory many times
Inactive Publication Date: 2018-01-16
KNORR-BREMSE SYST FUER NUTZFAHRZEUGE GMBH
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- Abstract
- Description
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- Application Information
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Problems solved by technology
[0004] This leads to the fact that several visits to the workshop have to be made already at a point in time when the service life of the transmission has not actually been exhausted for the purpose of servicing said transmission
Conversely, due to the installation of large additional compressed air consumers on the vehicle, the compressor and thus the transmission will be significantly more loaded than would have been taken into account when planning the maintenance intervals
The transmission can then fail already without warning between maintenance intervals
Method used
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Embodiment Construction
[0025] figure 1 An embodiment of a compressed air supply device according to the invention is shown. The compressor 3 is driven by the drive machine 1 of the vehicle via a transmission 2 . The transmission 2 comprises a drive-side gear 2a which meshes into a driven-side gear 2b. The compressor sucks in air through its input 3a and sends out said air in compressed form at its output 3b. A pressure sensor 9 and an air dryer 7 are connected downstream of the output 3b. Downstream of the air dryer 7, compressed air is delivered to (at figure 1not shown in the consumer device.
[0026] Arranged on the drive machine 1 is a knock sensor 4 which registers the vibrations which are passed by the compressor 3 in a reversing direction through the driven shaft, the driven-side gear 2b, the drive-side gear 2a and finally through The drive shaft is transmitted to the drive machine 1 . In addition, a pressure sensor 4 a is arranged on the input side of the compressor at the input 3 a. ...
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The invention relates to a compressed air supply system for a vehicle. The system comprises at least one compressor (3) which can be driven by the drive machine (1) of the vehicle via at least one transmission (2, 2a, 2b). According to the invention, an analyzing unit (5) is provided which obtains the measurement signal of at least one sensor (4, 4a) as an input and ascertains at least one characteristic variable from the measurement signal, said characteristic variable being a measurement of the mechanical load on the transmission (2, 2a, 2b). The sensor (4, 4a) is arranged in the powertrainbetween the drive machine (1) and the compressor (3) and / or on the input side of the compressor (3). Thus, a monitoring process can be carried out in order to determine whether the actual mechanical load on the transmission (2, 2a, 2b) corresponds to the load which was expected when designing the maintenance interval for the transmission (2, 2a, 2b). In the event of significant deviations, the maintenance interval, which is specified in kilometers and / or a period of time for example, can be adapted in a corresponding manner.
Description
technical field [0001] The invention relates to a compressed air supply device for a vehicle according to the preamble of claim 1 . Background technique [0002] Compressed air supply installations for vehicles, in particular commercial vehicles, generally comprise at least one compressor. The compressor is mechanically driven by the vehicle's internal combustion engine. In the drive train there is usually a transmission between the internal combustion engine and the compressor. A compressed air supply system of this type is known, for example, from DE 102 406 00 A1. [0003] The transmission is subject to wear during operation. It has proven difficult to predict the required maintenance intervals. Since the compressed air supply system in particular supplies the necessary compressed air brakes, it is no longer possible to continue driving in the event of a transmission failure. Therefore, the maintenance intervals must be designed sufficiently so that even under unfavo...
Claims
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Login to View More IPC IPC(8): B60T17/22F04B49/06F04B51/00F04B35/00
CPCB60T17/22F04B35/002F04B49/06F04B51/00
Inventor R·博日克
Owner KNORR-BREMSE SYST FUER NUTZFAHRZEUGE GMBH