Small pump

Small pump

The objective is to prevent noise of a small pump and improve performance of the small pump. Recess grooves 19, 19..., 20, 20..., 21, 21... or hollows 22, 22..., 23, 23... are scored on an intake valve element 8 opening and closing an intake valve part V1 of the small pump 1 or an upper surface of a...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
1. Verfasser: YAMAKAWA MUNEHARU
Format: Patent
Sprache:eng
Schlagworte:
BLASTING
HEATING
LIGHTING
MECHANICAL ENGINEERING
POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS
PUMPS
PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
WEAPONS
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Beschreibung
Zusammenfassung:The objective is to prevent noise of a small pump and improve performance of the small pump. Recess grooves 19, 19..., 20, 20..., 21, 21... or hollows 22, 22..., 23, 23... are scored on an intake valve element 8 opening and closing an intake valve part V1 of the small pump 1 or an upper surface of a rocking body 6 pressed against a back surface of the intake valve element to reduce contact area of the intake valve element 8 and the upper surface of the rocking body 6. Consequently, adhesion of the intake valve body 8 and the rocking body 6 is prevented to reduce noise at a time of open and close of the intake valve element 8.