Amphibious vehicle

Details Amphibious vehicle Amphibious vehicle

2007-04-24

2007-04-24

Avila, Stephen (Department: 3617)

Marine propulsion

Means to control the supply of energy responsive to a sensed...

C440S012500, C440S084000

Reexamination Certificate

active

11256206

ABSTRACT:
Amphibious vehicle needs less power on land than on water. A control system is provided to limit power and/or speed on land, using: restriction of flow of fuel, air, or exhaust gases; heated intake air; exhaust gas recirculation; declutching of a supercharger; bypassing of a turbocharger; a variable throttle stop, dual throttles, or a switchable throttle damper; cylinder or intake valve deactivation; a dual length intake manifold; dual mode ignition or engine mapping; dual fuel—gasoline on water, compressed natural gas on road; variable compression ratios or valve timing; a clutch designed to slip; automatic brake application; or aerodynamic brakes. The suspension may tilt the vehicle to increase aerodynamic resistance. The road transmission may be geared to limit maximum speed. High rolling resistance tires or twin engines may be used. A sensor on retractable suspension may indicate whether the vehicle is on land or on water.

REFERENCES:
patent: 3280785 (1966-10-01), Mycroft
patent: 3903831 (1975-09-01), Bartlett et al.
patent: 4358072 (1982-11-01), Williamson
patent: 4387661 (1983-06-01), Duff
patent: 4802433 (1989-02-01), Kovac
patent: 5562066 (1996-10-01), Gere et al.
patent: WO 2006/084969 (2005-09-01), None
patent: WO 2006/084969 (2005-09-01), None

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