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:
Nov. 22, 2016
Filed:
Dec. 31, 2011
Janusz Goldasz, Cracow, PL;
Thomas W. Nehl, Brighton, MI (US);
Zbigniew Szklarz, Zator, PL;
BeijingWest Industries, Co., Ltd., Beijing, CN;
Abstract
In shock absorber system, solenoidvaries the damping force by changing the position of spring seat, and the effective preload force, at the same time. In the normal, de-energized condition (with no current), damping forces are generated by the piston valveincluding piston. The actuated valve springis relaxed and set in such a way that it applies only a minimum preload force to the rebound-side disc stack. The motion of the plunger, pinand movable spring seatassembly changes the spring force by varying the distance between the movable spring seatand the stationary spring seat. In the energized state, applying current to coilgenerates a pulling force on the plungerin the direction of the core elementto attract plungertowards the coreand across the initial gapuntil it is in a direct contact with the core's surface. Maintaining plungerat this position requires applying a continuous constant holding current to coilso that the position of the plunger is preserved (and the high preload force at the same time). When current is no longer applied to the coil, then the pulling force is no longer generated, and the plunger assembly returns back to the original (soft) position due to the reverse action of the valve spring