The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 11, 1992
Filed:
Feb. 26, 1990
Dieter Synatschke, Mannheim, DE;
Paul Sattelberger, Reilingen, DE;
Werner Saam, Oberhausen-Rheinhausen, DE;
501 Joseph vogele AG, Mannheim, DE;
Abstract
A lubricant supply limiting device (1') for a lubrication system, wherein at least one fixed throttle (F) and a servo pressure controller (3) provided with a variable throttle (D) are disposed in the flow path, and wherein an adjustment member (6') for the variable throttle (D) is subjected to the resilient action of an actuator, is provided with a proportional solenoid (15) acting as the actuator for selectively adjusting the lubricant flow to the demand at specified lubrication points. A proportional solenoid (15) is moreover advantageous for general use in servo pressure controllers to act on the adjustment member thereof in a manner permitting the pressure differential maintained by the servo pressure controller and determined by a fixed throttle to be varied. In a lubrication system, a supply limiting device controlled by a proportional solenoid (15) is included in a control circuit in which a current control device (52) is operable to vary the current supply to the proportional solenoid (15) in response to demand at specified lubrication points. Alternatively the supply limiting device including the proportional solenoid may be incorporated in a closed control circuit in which the current supply to the proportional solenoid (15) is automatically controlled by means of a current control device (61) in accordance with the actual lubricant flow and a reference value related to specified lubrication points.