Title:
LIQUID LEVEL DETECTING DEVICE
Document Type and Number:
WIPO Patent Application WO/2024/106087
Kind Code:
A1
Abstract:
A liquid level detecting device (21) is provided with a venting cylinder (27) provided penetrating through a side surface portion (22A) of a case (22) in a position further toward an upper side (other side) of the case (22) than a water flow-through hole (25) and an ultrasonic sensor (23). In addition, an external venting hole (28) that opens outside the case (22) and an internal venting hole (29) that opens inside the case (22) on the upper side (other side) of the case (22) and that communicates with the external venting hole (28) are formed in the venting cylinder (27).
Inventors:
SATOU MASASHI (JP)
YAMASHITA MASASHI (JP)
HARA KATSUTAKA (JP)
HAMANO HIDEYUKI (JP)
YAMASHITA MASASHI (JP)
HARA KATSUTAKA (JP)
HAMANO HIDEYUKI (JP)
Application Number:
PCT/JP2023/037017
Publication Date:
May 23, 2024
Filing Date:
October 12, 2023
Export Citation:
Assignee:
HITACHI CONSTRUCTION MACH CO (JP)
International Classes:
F01N3/08; G01F23/2962
Domestic Patent References:
| WO2009074428A1 | 2009-06-18 |
Foreign References:
| JP2019053031A | 2019-04-04 | |||
| JP2019052927A | 2019-04-04 |
Attorney, Agent or Firm:
HIROWA PATENT FIRM (JP)
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