Cam device for pressure regulating valve

Details Cam device for pressure regulating valve Cam device for pressure regulating valve

1986-09-29

1988-12-20

Smith, Gary L.

Machine element or mechanism

Elements

Cams

74569, F16H 5300

Patent

active

047918276

ABSTRACT:
In the conventional cam device for a pressure regulating valve, when the cam is rotated abruptly, a contact force between the roller and the cam surface decreases abruptly particularly during the cam return stroke. On the other hand, a rotational force also tends to be applied to the plunger during the plunger return stroke. Therefore, there exists a problem in that the roller rotates together with the plunger out of a correct engagement between the roller and the cam surface. To overcome this problem, the roller and the cam surface are engaged in convex and concave engagement relationship. A convex is formed in the roller and a concave is formed in the cam surface or vice versa.

REFERENCES:
patent: 413523 (1889-10-01), Kirker
patent: 1101352 (1914-06-01), Sumbler
patent: 1603853 (1926-10-01), Michell
patent: 2457281 (1948-12-01), Shannon
patent: 2598196 (1952-05-01), Staley
patent: 2723570 (1955-11-01), Hermann
patent: 2984405 (1961-05-01), Stump
patent: 3034363 (1962-05-01), Vogel
patent: 3469660 (1969-09-01), Mathers
patent: 4152953 (1979-05-01), Headley
patent: 4609013 (1986-09-01), Takahashi

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