Abstract: A bi-fuel engine has a gaseous fuel mode engine start strategy that delivers a calibrated amount of supplemental gasoline during engine starting and initial gaseous fuel engine runs. The strategy is embodied in an algorithm employing variables including start of supplemental gasoline fueling, end of supplemental gasoline fueling, ramp-in period of supplemental gasoline fueling, ramp-out period of supplemental gasoline fueling, and the fraction of supplemental gasoline fuel to be delivered relative to that which is normally delivered during a conventional gasoline start. The algorithm differentiates between hot and cold engine starts for determining how much supplemental gasoline is to be delivered during gaseous fuel starts, wherein hot starts occur before substantially complete diffusion of gaseous fuel in the intake system, and cold starts occur after diffusion of gaseous fuel in the intake system is substantially complete.

Abstract: A pair of members which are expandable and contractible with temperature have a flexible expansion joint therebetween. A first body is attached to one of the members and carries an elongated support having a pair of indicators slidably mounted thereon. The indicators frictionally engage the support so that they move only in response to movement of the spaced members. A second body is attached to the other of the members and has a slot therein through which the support freely extends. The indicators have an outer dimension greater than the width of the slot. The second body has opposite faces which engage the indicators.

Abstract: A method and system are disclosed for selectively altering the functional characteristics of a data processing system without physical or mechanical manipulation. A data processing system is first manufactured having a predetermined set of functional characteristics. A multibit alterable code which includes a functional characteristic definition is then initially loaded into physically secure, nonvolatile memory within the data processing system, utilizing an existing bus, or a fusible link which may be opened after loading is complete. The functional characteristic definition is loaded from nonvolatile memory into a nonscannable register within a secure portion of a control logic circuit each time power is applied to the data processing system and the definition is then utilized to enable only selected functional characteristics.

Abstract: An improved third accumulator check valve is provided for the valve chamber which services feed oil to the release side of the intermediate servo cylinder of a turbohydramatic transmission system for motor vehicles wherein the intermediate band is released as direct clutches are applied. It comprises a positive seating valve in the chamber exhaust port, preventing exhaust port leakage which results in premature band application and clutch drag, and is characterized by a valve body which has more favorably disposed outer lift surfaces and an internal bore flow chamber with additional lift surfaces, said bore being provided further with a flow-released bore closure biasing the valve responsive to active flow pressure with assisted force into a continuously seated position.