Multi-pump apparatus of cooling system
AssigneeDeere & Company
InventorSTEVEN R. WHITEMAN
Life of this patent
Estimating the term…
Abstract
A multi-pump apparatus of a work vehicle may include a main housing, a motor shaft, a water pump, and a refrigerant pump. The main housing has a first housing portion and a second housing portion coupled to the first housing portion. The motor shaft is positioned through the first housing portion. The water pump is coupled to the first housing portion and is operable to pump coolant. The water pump is driven by the motor shaft. The refrigerant pump is coupled to the second housing portion and is operable to pump refrigerant. The refrigerant pump is also driven by the motor shaft.
Claims20
A multi-pump apparatus of a work vehicle, comprising:
- a main housing having a first housing portion and a second housing portion coupled to the first housing portion;
- a motor shaft positioned through the first housing portion;
- a water pump coupled to the first housing portion and operable to pump coolant and driven by the motor shaft;
- and
- a refrigerant pump coupled to the second housing portion and operable to pump refrigerant and driven by the motor shaft.
A cooling system for a work vehicle, comprising:
- a multi-pump apparatus, including:
- a main housing having a first housing portion and a second housing portion coupled to the first housing portion;
- a motor shaft positioned through the first housing portion;
- a water pump coupled to the first housing portion and operable to pump coolant and driven by the motor shaft;
- and
- a refrigerant pump coupled to the second housing portion and operable to pump refrigerant and driven by the motor shaft;
- a pressure reducer receiving the refrigerant from the refrigerant pump and operable to reduce the pressure of the refrigerant so as to decrease the temperature thereof;
- a primary heat exchanger having a first unit and a second unit, wherein the first unit is operable to receive the refrigerant from the pressure reducer;
- a condenser positioned downstream of the first unit of the primary heat exchanger and operable to cool the refrigerant into liquid form;
- and
- a vehicle component receiving the coolant from the water pump to discharge heat;
- wherein the second unit of the primary heat exchanger is positioned downstream of the vehicle component and is operable to absorb heat from the vehicle component and to discharge heat to the first unit of the primary heat exchanger.
Dependencies are inferred from the claim text.