Fluid handling – Line condition change responsive valves – Direct response valves
Patent
1975-12-09
1976-10-05
Cline, William R.
Fluid handling
Line condition change responsive valves
Direct response valves
251368, 13751215, 428902, F16K 1516
Patent
active
039839001
ABSTRACT:
Reed valves for an internal combustion engine constituted by a thin flexible flat sheet of fiber-reinforced resin containing from 55-63% by weight of fine diameter fiber, this sheet having a tab portion which is restrained in use to provide a cantilevered flexing portion extending away from said tab portion, the sheet is formed to a thickness in the range of .012 to .020 inch per inch of length of said cantilevered portion, the sheet being constituted by a plurality of layers in each of which the fibers are straight and parallel with one another, with the reinforcing fibers in the outer layers being oriented to run generally from said flexing portion to said tab portion, and with the reinforcing fibers in the inner layers being symmetrically oriented to run in other directions, and the fibers having an average tensile strength above 300 .times. 10.sup.3 p.s.i. and an average modulus of elasticity greater than 18 .times. 10.sup.6 p.s.i., such as is provided by carbon fibers, in order to provide superior response in a thicker than usual reed valve which resists catastrophic failure.
REFERENCES:
patent: 2722896 (1955-11-01), Hayes
patent: 2725183 (1955-11-01), Hanson
patent: 3070122 (1962-12-01), Weatherhead et al.
patent: 3200838 (1965-08-01), Sheaffer
patent: 3768760 (1973-10-01), Jensen
Mount, R. L., Advanced Filament Composites, in Machine and Tool Bluebook, pp. 63-71, Nov. 1971.
Marklew, J. J., Rapid Advances . . . Components in Machinery and Product Engineering, June 1970.
Berg, K. R., and Filippe, F. J., Advanced Fiber Resin Composites, in Machine Design, pp. 160-168, Apr. 1971.
McDonald, J. C., Carbon Composite Technology, in Mechanical Engineering, pp. 21-27, Feb. 1971.
Marganite Research and Development Limited, Modmor High Modulus Carbon Fibers, Mar. 1969, p. 7, from Engineering Materials and Design Materials Selector.
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