1. A fluid cooled snowmobile comprising:
a longitudinal chassis including an internal combustion engine housed in a forwardly disposed engine compartment and a centrally disposed seating apparatus;
a radiator disposed outside the compartment;
a radiator mount on the chassis for mounting the radiator;
coolant lines connected between the radiator and internal combustion engine for circulating a coolant from the radiator to the engine; and
a fluid pump for pumping the coolant through the coolant lines.
2. The snowmobile of claim 1, including:
a rear section of the chassis; and
the radiator mounted to the rear section.
3. The snowmobile of claim 2, wherein:
the rear section includes a luggage rack and the radiator mounted to the luggage rack.
4. The snowmobile of claim 2, wherein:
the mount includes saddle bags mounted to the rear section of the chassis.
5. The snowmobile of claim 1, wherein:
the radiator is mounted rearwardly of the seat.
6. The snowmobile of claim 1, wherein:
a fan mounted adjacent the radiator for forcing air over the radiator and including an electric motor connected with an electrical system of the snowmobile.
7. The snowmobile of claim 1, including:
fans on opposite sides of the radiator for forcing air onto the radiator from one side and drawing air from the other side.
8. The snowmobile of claim 1, including:
a plenum chamber disposed in heat exchange relationship with the radiator for receipt of an energy absorptive element.
9. The snowmobile of claim 1, wherein:
the radiator is in the form of at least two radiator cores projecting at an acute angle to one another.
10. The snowmobile of claim 9, including:
plenum chambers on the respective one sides of the radiator cores for receipt of heat absorptive elements;
forced air fans for forcing air to the respective plenum chambers over the heat absorptive elements in the plenum chamber and in heat exchange relationship with the respective radiator cores; and
a radiator fan on the side of the radiator cores opposite the respective one side for drawing air from the respective radiator cores.
11. The snowmobile of claim 1, wherein:
the radiator mount is constructed to mount the radiator in a vertical orientation adjacent the rear of the seating apparatus; and wherein
the snowmobile includes air ducting beneath the seating apparatus leading from laterally opening inlets to a front of the radiator.
12. The snowmobile of claim 11, including:
air grills covering the inlets.
13. The snowmobile of claim 11, including:
a fan mounted adjacent the radiator for flowing ambient air in heat exchange relationship therewith.
14. The snowmobile of claim 1, wherein:
the radiator is planar and mounted at an angle sloping upwardly and rearwardly at the rear of the seating apparatus and the snowmobile includes a forced air fan disposed adjacent the radiator for forcing air through the radiator.
15. A snowmobile cooling conversion kit for use with a snowmobile having a cooling jacketed internal combustion engine disposed forwardly on the chassis of the vehicle and comprising:
a radiator including a radiator core for disposition rearwardly on the chassis;
a mount for mounting the radiator rearwardly on the chassis;
an electric fan to be mounted in a flow stream to, when operated, flow air in heat exchange relationship with the radiator;
coolant lines for connecting the core of the radiator with the cooling jacket.
16. A snowmobile including an electrical system and comprising:
a chassis having a forwardly disposed engine compartment;
an internal combustion engine having a coolant jacket thereon mounted within the engine compartment;
a passenger seat medially disposed on the chassis;
a radiator;
a radiator mount for mounting the radiator outside the engine compartment on the chassis; and
the radiator is mounted relative to an incoming airstream in heat exchange relationship with the radiator.
17. The snowmobile of claim 16, wherein:
the chassis includes a hood covering the engine compartment; and
the radiator mount mounted to the hood.
18. The snowmobile of claim 16, including:
an electric fan mounted adjacent the radiator for flowing air in heat exchange relationship with the radiator; and
an electric motor for driving the fan and connected with the electrical system of the snowmobile.
19. The snowmobile of claim 16, including:
a plenum chamber mounted adjacent to the radiator and disposed within the airstream in heat exchange relationship with the radiator.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A voltage regulator for an automotive application, the voltage regulator comprising:
an input node configured to receive one of an active control signal and a passive control signal;
a comparator circuit in communication with the input node and configured to determine if the passive control signal has been received; and
a counter circuit in communication with the input node and configured to control a voltage set point based on the active control signal.
2. The voltage regulator according to claim 1, wherein the comparator circuit has a threshold level that is less than the lowest expected vehicle pull-up but greater than the logic levels used for the active control signal.
3. The voltage regulator according to claim 2, wherein the threshold is about 8 volts.
4. The voltage regulator according to claim 1, wherein the comparator circuit includes a comparator with a first input connected to the input node and a second input connected to a voltage source having a voltage less than the lowest expected vehicle level pull-up and greater than logic levels used for the active control signal.
5. The voltage regulator according to claim 4, wherein the voltage source has a voltage of 8 volts.
6. The voltage regulator according to claim 1, further comprising a diode isolated pull-up circuit.
7. The voltage regulator according to claim 6, wherein the diode isolated pull-up circuit includes a diode, a resistor, and a voltage source.
8. The voltage regulator according to claim 7, wherein the diode and resistor are in electrical series connection between the input node and the voltage source.
9. The voltage regulator according to claim 8, wherein the voltage source provides a bias voltage greater than the active mode logic high threshold but less than the comparator threshold used for detecting the passive control signal.
10. The voltage regulator according to claim 9, wherein the voltage source provides a bias voltage of about 6 volts.
11. The voltage regulator according to claim 6, wherein the diode isolated pull-up has a bias voltage greater than the active mode logic high threshold but less than the comparator threshold used for detecting the passive control signal.
12. The voltage regulator according to claim 11, wherein the bias voltage is about 6 volts.
13. The voltage regulator according to claim 1, further comprising a logic level inverter with hysteresis electrically connected between the input node and the counter circuit.
14. The voltage regulator according to claim 1, wherein the counter circuit is configured to enter a sleep mode if a timeout is reached after receiving an active control signal.