US 12,145,544 B2
Cleaning device, sensor cleaning module, vehicle, and method for operating a cleaning device
Jan Cohrs, Wietzendorf (DE); and Jan Fiebrandt, Hannover (DE)
Assigned to ZF CV Systems Global GmbH, Bern (CH)
Filed by ZF CV Systems Global GmbH, Bern (CH)
Filed on Dec. 7, 2022, as Appl. No. 18/062,994.
Application 18/062,994 is a continuation of application No. PCT/EP2021/068925, filed on Jul. 8, 2021.
Claims priority of application No. 10 2020 119 474.9 (DE), filed on Jul. 23, 2020; and application No. 10 2020 121 016.7 (DE), filed on Aug. 10, 2020.
Prior Publication US 2023/0107319 A1, Apr. 6, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. B60S 1/46 (2006.01); B08B 3/02 (2006.01); B08B 5/02 (2006.01); B60S 1/48 (2006.01); B60S 1/52 (2006.01); B60S 1/54 (2006.01); F16K 11/044 (2006.01); F16K 27/02 (2006.01); F16K 31/42 (2006.01); G02B 27/00 (2006.01); B60S 1/56 (2006.01)
CPC B60S 1/52 (2013.01) [B08B 3/02 (2013.01); B08B 5/02 (2013.01); B60S 1/481 (2013.01); B60S 1/54 (2013.01); F16K 11/044 (2013.01); F16K 27/02 (2013.01); F16K 31/42 (2013.01); G02B 27/0006 (2013.01); B60S 1/56 (2013.01); F16K 2200/501 (2021.08)] 17 Claims
OG exemplary drawing
 
1. A cleaning device for a vehicle for providing at least one of the following:
i) a liquid cleaning pulse; and,
ii) a compressed air cleaning pulse for at least one cleaning nozzle, the cleaning device comprising:
a module compressed air connection for receiving compressed air;
a pressure cylinder defining a cylinder volume;
a movable separator partitioning said cylinder volume into a compressed air receiving chamber and a cleaning liquid receiving chamber in a fluid-tight manner;
said compressed air receiving chamber having an air chamber connection subjectable to compressed air for filling said compressed air receiving chamber;
said separator being movable against a restoring force to contract said cleaning liquid receiving chamber and to expand said compressed air receiving chamber whereby cleaning liquid in a form of the liquid cleaning pulse is provided to a liquid nozzle line via a liquid chamber connection of said cleaning liquid receiving chamber;
a switching valve configured to establish a pneumatic connection between said module compressed air connection and said air chamber connection in a ventilation position; and,
a bypass valve configured to establish a pneumatic connection between said module compressed air connection and a compressed air nozzle line while bypassing said switching valve in an open position for providing a bypass compressed air flow.