Solenoid pump adapted for noiseless operation

Details Solenoid pump adapted for noiseless operation Solenoid pump adapted for noiseless operation

1978-07-18

1981-12-29

Duggan, Donovan F.

Electrical generator or motor structure

Dynamoelectric

Reciprocating

310 23, 310 34, 318123, 318124, 417416, 417417, H02K 3302

Patent

active

043084753

ABSTRACT:
A solenoid-actuated fluid pump having reciprocable armature operable by a magnetic circuit and with structure in the flux path at the upper and lower air gaps to substantially change the reluctance across the air gaps as the armature moves beyond a predetermined location. The armature has slots for passage of fluid therethrough and which have a C-shaped cross-section to minimize the air gaps.

REFERENCES:
patent: 3201670 (1968-08-01), Myers
patent: 3755700 (1973-08-01), Buschman et al.
patent: 3874822 (1975-04-01), Nakamura
patent: 3877841 (1975-04-01), Nakamura
patent: 3894817 (1975-07-01), Majoros et al.
patent: 4010390 (1977-03-01), Stampfli

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