Methods and apparatus for suspension lock out and signal generation

Patent metadata

Field	Value
Publication number	US-10072724-B2
Application number	US-201414562002-A
Country	US
Kind code	B2
Filing date	Dec 5, 2014
Priority date	Aug 25, 2008
Publication date	Sep 11, 2018
Grant date	Sep 11, 2018

Abstract

Methods and apparatus for regulating the function of a suspension system are disclosed herein. Suspension characteristics often contribute to the efficiency of a suspended system. Depending on the desired operating parameters of the suspended system, it may be desirable to alter the functional characteristics of the suspension from time to time in order to maintain or increase efficiency. The suspension hereof may be selectively locked into a substantially rigid configuration, and the damping fluid may be phase separated and/or cooled to increase damping rate during use (or offset rate degradation). The suspension hereof may generate power usable to achieve any or all of the foregoing or to be stored for use elsewhere in the suspended system or beyond.

First claim

What I claim is:

1. A vehicle suspension damper comprising:
a hydraulic damping cylinder comprising an inner wall and an outer wall, said inner wall and said outer wall defining an annular space therebetween;
a cooling circuit having an attachment to an outer surface of said outer wall of said a hydraulic damping cylinder, wherein said attachment is configured to facilitate heat transfer between said cooling circuit and said outer wall; and
a power conditioner coupled to said cooling circuit and a set of winding terminals that are attached to said outer wall and a wire motor winding positioned in said annular space between said inner wall and said outer wall, wherein said power conditioner is configured to power said cooling circuit, and wherein conditioned power is conducted, via a set of conduits, from a set of output terminals of said power conditioner to a set of input terminals of said cooling circuit.

2. The vehicle suspension damper of claim 1 , wherein said cooling circuit comprises:
a thermo-electric generator.

3. The vehicle suspension damper of claim 2 , wherein said thermo-electric generator comprises:
ceramic wafers, wherein sandwiched there between is alternating P and N doped bismuth telluride.

4. The vehicle suspension damper of claim 2 , wherein said thermo-electric generator comprises:
a hot surface that is in primary thermal communication with ambient surroundings of said vehicle suspension damper; and
a cold surface that is in primary thermal communication with a damping fluid positioned within said vehicle suspension damper.

5. The vehicle suspension damper of claim 4 , further comprising:
a thermal conduit facilitating said primary thermal communication.

6. The vehicle suspension damper of claim 4 , further comprising:
a heat sink positioned in thermal communication with said hot surface of said thermo-electric generator, wherein said heat sink aids in conducting heat away from said vehicle suspension damper.

7. The vehicle suspension damper of claim 6 , wherein said heat sink comprises:
at least one heat dissipation mechanism.

8. The vehicle suspension damper of claim 7 , wherein said at least one heat dissipation mechanism comprises:
a set of cooling fins.

9. The vehicle suspension damper of claim 7 , further comprising:
a water cooling system in thermal communication with said at least one heat dissipation mechanism.

10. The vehicle suspension damper of claim 2 , further comprising:
a temperature sensor positioned proximate a damping fluid within said vehicle suspension damper such that said temperature sensor is enabled to determine a temperature of said damping fluid; and
a switch controlled by a microprocessor, wherein, based on a predetermined desired operating temperature of said vehicle suspension damper, said switch is configured to perform at least one of the following functions: turn said thermo-electric generator on; turn said thermo-electric generator off; modulate a current flow thereto.

11. The vehicle suspension damper of claim 2 , wherein said set of input terminals comprises:
electric output terminals from which usable electricity is conducted to a suitable power use point.

12. The vehicle suspension damper of claim 11 , further comprising:
a high current input battery attached to said electric output terminals via a set of conductors, wherein said set of conductors comprises thermo electric generator electric output leads, wherein said set of conductors connect said high current input battery via said power conditioner such that current flow facilitates a passive conduction of heat away from said vehicle suspension damper.

13. The vehicle suspension damper of claim 1 , further comprising:
a piston rod housed therein, wherein said piston rod is configured for performing an axial movement back and forth along a first direction; and
a magnet attached to said piston rod, wherein said magnet is configured for moving relative to said wire motor winding, wherein said axial movement generates an electric current within said wire motor winding that powers said cooling circuit, thereby conducting heat away from said vehicle suspension damper.

Assignees

• Fox Factory Inc

Inventors

• Haugen David M

Classifications

• B62K25/08

  for front wheel · CPC title

• B60G2300/12

  Cycles; Motorcycles · CPC title

• B60G2300/60

  Vehicles using regenerative power · CPC title

• F16F9/42 Primary

  Cooling arrangements · CPC title

• F03G1/00

  Spring motors (spring-driven toys A63H; springs in general F16F; precision time mechanisms, e.g. for clocks or watches, G04B) · CPC title