Pumps – Three or more cylinders arranged in parallel – radial – or... – Radial cylinders
Patent
1989-10-25
1991-08-13
Smith, Leonard E.
Pumps
Three or more cylinders arranged in parallel, radial, or...
Radial cylinders
74 55, 92129, 303 87, 464 89, F04B 104
Patent
active
050392832
ABSTRACT:
The invention relates to a device for a hydraulic unit, in particular in anti-skid systems for vehicle brake systems, which has a radial piston pump. The eccentric driven by a drive shaft in the pump meets pump pistons also located in the pump, usually in the region of high stroke variation speed. An resultant mechanical and hydraulic vibration, which causes noise and annoying movement at the brake pedal, is counteracted according to the invention in that a resilient intermediate element is disposed between the pump pistons and the eccentric element, and the eccentric is driven via a torsionally elastic coupling.
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patent: 4311437 (1982-01-01), Liska
patent: 4516956 (1985-05-01), Staiezt
patent: 4772245 (1988-09-01), Readman et al.
patent: 4850825 (1989-07-01), Budecker
Maisch Wolfgang
Mergenthaler Robert
Zirps Wilhelm
Greigg Edwin E.
Greigg Ronald E.
Kocharov Michael I.
Robert & Bosch GmbH
Smith Leonard E.
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