US 12,275,380 B2
Pressurized straight line wiper system
Anumodh Rajan, Mysore (IN); and Antriksh Shinde, Ambejogai (IN)
Assigned to Volvo Truck Corporation, Gothenburg (SE)
Appl. No. 17/796,941
Filed by Volvo Truck Corporation, Gothenburg (SE)
PCT Filed Dec. 11, 2020, PCT No. PCT/EP2020/085823
§ 371(c)(1), (2) Date Aug. 2, 2022,
PCT Pub. No. WO2021/175476, PCT Pub. Date Sep. 10, 2021.
Claims priority of application No. 202041009509 (IN), filed on Mar. 5, 2020.
Prior Publication US 2023/0065115 A1, Mar. 2, 2023
Int. Cl. B60S 1/34 (2006.01); B60S 1/38 (2006.01); B62D 33/06 (2006.01)
CPC B60S 1/3404 (2013.01) [B60S 1/3411 (2013.01); B60S 1/3463 (2013.01); B60S 1/38 (2013.01); B60S 2001/3812 (2013.01); B60S 2001/3825 (2013.01); B62D 33/06 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A vehicle comprising:
a cab presenting a longitudinal direction and defining a driver compartment, the driver compartment being delimited in the longitudinal direction by a windshield, and
a wiping arrangement configured to wipe the windshield over a wiping area, the wiping arrangement comprising at least one wiper including a support movably mounted on the cab and a blade mounted on the support to contact the windshield along a contact length,
wherein the wiping arrangement includes an urging system configured to urge the blade against the windshield, and
wherein the urging system is configured to apply a pressure on the blade along the contact length by a pressurized fluid,
wherein the urging system includes a reservoir defining an inner space for receiving the fluid, and a pressurizing device configured to pressurize the fluid within the inner space, the reservoir being mounted on the support in fluid communication with the blade,
wherein the pressurizing device is arranged within the reservoir, and
wherein the reservoir extends along a reservoir axis between a bottom and an end wall provided with an outlet, and the pressurizing device is electromagnetic, the pressurizing device comprising:
an electromagnet at the bottom of the reservoir,
a magnetic piston movably mounted within the reservoir between the electromagnet and the end wall, and
a power supply connected to the electromagnet to control polarity of the electromagnet, the inner space being formed between the magnetic piston and the end wall.