Electric pump apparatus

A closing cover (60) integrally includes a cover main body (60a), and a ventilation cap body (71). The ventilation cap body (71) has a connecting portion (73) that is integrally connected to the cover main body (60a), and at least one ventilation passage hole (72) that is disposed in the connecting...

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Bibliographic Details
Main Authors SUGANO, SAYAKA, YOSHIOKA, YUICHI
Format Patent
LanguageEnglish
French
German
Published 18.03.2015
Subjects
BLASTING
HEATING
LIGHTING
MECHANICAL ENGINEERING
POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS
PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTMACHINES FOR LIQUIDS
ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTPUMPS
WEAPONS
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Summary:A closing cover (60) integrally includes a cover main body (60a), and a ventilation cap body (71). The ventilation cap body (71) has a connecting portion (73) that is integrally connected to the cover main body (60a), and at least one ventilation passage hole (72) that is disposed in the connecting portion (73) to perpendicularly extend, and has a depth smaller than a plate thickness of the cover main body (60a). A ventilation recessed portion (77) is formed at a location that is positioned on an inner surface of the ventilation cap body (71) of the closing cover (60). An inner wall surface (78) defining the ventilation recessed portion (77) is formed in such a shape that a deep side of the ventilation passage hole (72) is opened to the inner wall surface defining the ventilation recessed portion (77) to form a ventilation passage. A ventilation filter (80) is installed on an inner opening portion of the ventilation recessed portion (77).
Bibliography:Application Number: EP20140183880