Appeal No. 2002-0584
Application 08/321,028
Claims 8, 17 and 25 depend ultimately from claims 1, 12 and
11, respectively, and pertain to the determination of engine
temperature and the modification of the desired injection
pressure based the engine temperature. Takeuchi’s disclosure of
controlling injection pressure based on, among other parameters,
cooling water temperature (see column 6, lines 52 through 68),
considered within the context of the combined teachings of
Weisman and Takeuchi as applied above, would have suggested this
subject matter.
Thus, we shall sustain the standing 35 U.S.C. § 103(a)
rejection of claims 8, 17 and 25 as being unpatentable over
Weisman in view of Takeuchi.
X. Claim 21
Claim 21 depends ultimately from claim 1 and pertains to the
determination of rail pressure in a fuel rail connected to the
fuel injector, and the generation of an output signal for
controlling the fuel pump system based on the difference between
the desired injection pressure and the rail pressure. Takeuchi’s
disclosure of the feedback control of rail pressure to obtain an
optimum fuel injection pressure (see Figure 4 and column 6, lines
52 through 68), considered within the context of the combined
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