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US 8,162,086 B2Granted
Variable pitch radiator fan control system
AssigneeHonda Motor Co., Ltd.
InventorJames S. Robinson
Life of this patent
Estimating the term…
Abstract
A control system for a variable pitch radiator fan is disclosed. The control system is capable of varying the blade pitch of the radiator fan from a normal position to a full reverse position. The control system can change the blade pitch based on a number of factors, including vehicle speed. In systems with a plurality of fans, the control system is also capable of independently controlling the blade pitch of each of the fans. In systems with multiple fans, the control system can produce a circulation mode.
Claims20
A motor vehicle, comprising:
- a chassis;
- a passenger portion configured to receive at least one passenger;
- an exterior surface;
- a radiator disposed proximate the exterior surface, the radiator also being disposed between the exterior surface and a first fan and a second fan;
- a power plant disposed proximate the radiator;
- the first fan aligning with a first portion of the radiator and the second fan aligning with a second portion of the radiator;
- a control system in communication with the first fan and the second fan;
- wherein the control system is configured to vary the blade pitch of the first fan and is configured to also independently vary the blade pitch of the second fan;
- and
- wherein, in a first mode, the control system is configured to adjust the blade pitch of the first fan to a position whereby air is pushed towards the radiator from the first fan, and the control system is configured to adjust the blade pitch of the second fan to a position whereby air is pulled from the radiator to the second fan, thus creating a circulation air flow.
7 more elements
A motor vehicle, comprising:
- a chassis;
- a passenger portion configured to receive at least one passenger;
- an exterior surface;
- a radiator disposed proximate the exterior surface, the radiator also being disposed between the exterior surface and a first fan and a second fan;
- a power plant disposed proximate the radiator;
- the first fan aligning with a first portion of the radiator and the second fan aligning with a second portion of the radiator;
- a control system in communication with the first fan and the second fan;
- wherein the control system is configured to vary the blade pitch of the first fan and is configured to also independently vary the blade pitch of the second fan;
- wherein, in a first mode, the control system is configured to adjust the blade pitch of the first fan to a position whereby air is pushed towards the radiator from the first fan, and the control system is configured to adjust the blade pitch of the second fan to a position whereby air is pulled from the radiator to the second fan, thus creating a circulation air flow;
- and
- wherein, in a second mode, the control system is configured to adjust the blade pitch of the first fan to a position whereby air is pulled from the radiator to the first fan, and the control system is configured to adjust the blade pitch of the second fan to a position whereby air is pulled from the radiator to the second fan.
8 more elements
A motor vehicle, comprising:
- a chassis;
- an exterior surface;
- a radiator disposed proximate the exterior surface, the radiator also being disposed between the exterior surface and a first fan and a second fan;
- a power plant disposed proximate the radiator;
- the first fan aligning with a first portion of the radiator and the second fan aligning with a second portion of the radiator;
- a control system in communication with the first fan and the second fan;
- wherein the control system is configured to vary the blade pitch of the first fan and is configured to also independently vary the blade pitch of the second fan;
- and
- wherein the control system is configured to adjust the blade pitch of the first fan to provide a flow of air from the power plant to the radiator when temperature information received by a sensor is above a predetermined level;
- and
- wherein the control system is configured to adjust the blade pitch of the first fan to provide a flow of air from the radiator to the power plant when a speed of the motor vehicle increases.
8 more elements
Dependencies are inferred from the claim text.