US 12,404,786 B2
Twisted valve spring
David Raymond Reiné, Los Angeles, CA (US)
Assigned to Honda Motor Co., Ltd., Tokyo (JP)
Filed by Honda Motor Co., Ltd., Tokyo (JP)
Filed on Dec. 13, 2022, as Appl. No. 18/065,490.
Prior Publication US 2024/0191641 A1, Jun. 13, 2024
Int. Cl. F16F 1/04 (2006.01); F01L 1/46 (2006.01)
CPC F01L 1/462 (2013.01) [F16F 1/047 (2013.01); F16K 2200/305 (2021.08)] 19 Claims
OG exemplary drawing
 
1. A valve spring disposed between valves and ports of an engine to control a movement of the valves of the engine, comprising:
a first turn, wherein the first turn of the valve spring, the valve spring having an oval or elliptical cross-section, the oval or elliptical cross-section is disposed at a first angular orientation; and
a second turn, wherein, the oval or elliptical cross-section of the second turn is disposed at a second angular orientation, wherein
the second angular orientation is different from the first angular orientation.