Invention Grant
- Patent Title: Device for spraying fluid on vehicle camera
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Application No.: US16476707Application Date: 2018-01-05
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Publication No.: US11345319B2Publication Date: 2022-05-31
- Inventor: Mikio Nezu
- Applicant: NIFCO INC.
- Applicant Address: JP Yokosuka
- Assignee: NIFCO INC.
- Current Assignee: NIFCO INC.
- Current Assignee Address: JP Yokosuka
- Agent Manabu Kanesaka
- Priority: JPJP2017-008155 20170120,JPJP2017-182228 20170922
- International Application: PCT/JP2018/000103 WO 20180105
- International Announcement: WO2018/135322 WO 20180726
- Main IPC: B60S1/56
- IPC: B60S1/56 ; B05B12/08 ; B08B5/02 ; B60R11/04

Abstract:
A device for spraying a fluid on a vehicle camera includes a flow passage for connecting a suction portion with a discharge portion; a cylinder for communicating a pressure chamber in front of a piston with the flow passage; a drive mechanism for the piston including a motor; a first valve located between the suction portion and the pressure chamber, and functioning such that the first valve opens when the piston moves backward and closes when the piston moves forward; a second valve located between the pressure chamber and the discharge portion, and functioning such that the second valve opens when a pressure in the pressure chamber reaches a predetermined value by a forward movement of the piston; and a casing for housing the flow passage, the cylinder, the drive mechanism, the first valve, and the second valve to be combined with the vehicle camera.
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