Helical spring for a pump having an adjustable delivery volume

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United States of America Patent

PATENT NO 11592021
SERIAL NO

17459009

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A pump having an adjustable delivery volume, including: a pump housing featuring a delivery chamber which includes a delivery chamber inlet for a fluid and a delivery chamber outlet for the fluid; a delivery member, which can be rotated within the delivery chamber, for delivering the fluid; an adjusting device featuring a setting structure, which is mounted such that it can move back and forth within the pump housing in order to adjust the delivery volume of the pump, and a helical spring for applying a spring force, which acts in a setting direction, to the setting structure, wherein the windings of the helical spring are enclosed by an envelope lying on the outside of the helical spring wherein the cross-sectional area of the envelope as measured transversely with respect to the longitudinal direction of the spring changes progressively in the longitudinal direction of the spring.

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Patent Owner(s)

Patent OwnerAddress
SCHWABISCHE HUTTENWERKE AUTOMOTIVE GMBHWILHELMSTR 67 AALEN-WASSSERALFINGEN 73414

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Baur, Winfried Altheim, DE 2 1
Jäggle, Gerd Ertingen, DE 17 34
Peters, Sven Bad Schussenried, DE 22 70
Schilling, Simone Ogglshausen, DE 2 1
Tontsch, Thomas Bad Schussenried, DE 3 1

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