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US 6,205,980 B1Granted
High-pressure delivery pump
AssigneeSIG Schweizerische Industrie-Gesellschaft
InventorFritz Spinnler
Life of this patent
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AssigneeSIG Schweizerische Industrie-Gesellschaft
InventorFritz Spinnler
Estimating the term…
A high-pressure delivery pump is provided which includes a high-pressure cylinder and a plunger displaceable within the high-pressure cylinder. The high-pressure delivery pump also includes an eccentric pin which is arranged on a drive shaft having an axis of rotation perpendicular to a central longitudinal axis of the plunger. The plunger has a disk-shaped widened portion at a first end thereof. The disk-shaped widened portion extends radially outwardly from the high-pressure cylinder. A rolling ring in rotatably mounted on the drive shaft and an outer circumference of the rolling ring faces the widened portion of the plunger. The widened portion of the plunger bears against the outer circumference of the rolling ring to form a contact area. The rolling ring has at least one recess or relieved portion at its outer circumference.
A high-pressure delivery pump comprising:
A rolling ring for a high-pressure delivery pump including a high-pressure cylinder, a plunger displaceable in the high-pressure cylinder and having a widened portion extending radially outwardly of the high pressure cylinder, an eccentric pin arranged on a drive shaft and having an outer circumference facing the widened portion of the plunger, and a contact area created between the widened portion of the plunger and an outer circumference of said rolling ring, said rolling ring comprising:
Dependencies are inferred from the claim text.