WO2023140759 - LUBRICATION MONITORING SYSTEM
National phase entry:
Publication Number
WO/2023/140759
Publication Date
27.07.2023
International Application No.
PCT/SE2022/051169
International Filing Date
12.12.2022
Title **
[English]
LUBRICATION MONITORING SYSTEM
[French]
SYSTÈME DE SURVEILLANCE DE LUBRIFICATION
Applicants **
HUSQVARNA AB
Inventors
KRANTZ, Jacob
SAMEFORS, Joakim
Priority Data
2250055-7
21.01.2022
SE
Application details
| Total Number of Claims/PCT | * |
| Number of Independent Claims | * |
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International Searching Authority |
EPO
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| Recordal of a Change of the Applicant's Name/Address |
Change of Applicant's Name and Address
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| Type of Assignment |
The Standard Agent's Assignment
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| Applicant's Legal Status |
Legal Entity
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| Entry into National Phase under |
Chapter I
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| Patent Delivery |
Send the Letters Patent by Courier
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| 译文 |
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Quotation for National Phase entry
| Country | Stages | Total | |
|---|---|---|---|
| China | Filing, Examination, Granting | 1938 | |
| EPO | Filing, Examination, Granting | 8126 | |
| Japan | Filing, Examination, Granting | 2062 | |
| South Korea | Filing, Examination, Granting | 1883 | |
| USA | Filing, Examination, Granting | 5940 |
Total:
19,949
The term for entry into the National Phase has expired. This quotation is for informational purposes only
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Abstract[English]
The present disclosure relates to a lubrication monitoring system (15) configured to monitor a supply of lubricant in a hand-held cutting tool (1) having a cutting unit (3, 5). A lubricant tank (41) and a conduit (45) are configured to duct a flow of lubricant from the tank (41) to the cutting unit (3, 5). The lubrication monitoring system (15) comprises a heating element (29) and a sensor arrangement (31, 33), the heating element (29) being configured to heat the lubricant flow. The sensor arrangement comprises a first sensor (31) located at the flow, upstream of the heating element (29), and a second sensor (33) located at said flow, downstream of the heating element. The lubrication monitoring system outputs a monitoring signal based on a sensed temperature difference between the first and second sensors (31, 33).[French]
La présente invention concerne un système de surveillance de lubrification (15) configuré pour surveiller une alimentation en lubrifiant dans un outil de coupe portatif (1) doté d'une unité de coupe (3, 5). Un réservoir de lubrifiant (41) et un conduit (45) sont configurés pour canaliser un écoulement de lubrifiant depuis le réservoir (41) jusqu'à l'unité de coupe (3, 5). Le système de surveillance de lubrification (15) comprend un élément chauffant (29) et un agencement de capteur (31, 33), l'élément chauffant (29) étant configuré pour chauffer l'écoulement de lubrifiant. L'agencement de capteur comprend un premier capteur (31) situé au niveau de l'écoulement, en amont de l'élément chauffant (29), et un second capteur (33) situé au niveau dudit écoulement, en aval de l'élément chauffant. Le système de surveillance de lubrification délivre un signal de surveillance sur la base d'une différence de température détectée entre les premier et second capteurs (31, 33).