Ventilation system and method
First Claim
Patent Images
1. A method of ventilating, comprising:
- establishing a desired no load ventilation rate at an ambient temperature and a desired pressure and applying the ideal gas law;
providing a fan, a motor, and a torque converter coupling the fan to the motor;
driving the fan through the torque converter at no load to achieve the desired no load ventilation rate with the motor, whereby fan torque is constant.
0 Assignments
0 Petitions
Accused Products
Abstract
A ventilation system includes one or more exhaust fans and one or more make up air fans. Each fan has is driven by a motor operating at a constant speed. Each fan and motor are coupled by a torque converter, so that the torque applied to the fan is constant. Exhaust fan speed varies according to the ideal gas law, whereby the fan speed automatically varies in response to changes in system conditions, such as temperature and the associated changes in air density and resistance to the fan.
47 Citations
12 Claims
-
1. A method of ventilating, comprising:
-
establishing a desired no load ventilation rate at an ambient temperature and a desired pressure and applying the ideal gas law;
providing a fan, a motor, and a torque converter coupling the fan to the motor;
driving the fan through the torque converter at no load to achieve the desired no load ventilation rate with the motor, whereby fan torque is constant. - View Dependent Claims (2, 3)
-
-
4. A ventilation system comprising:
-
a fan;
a driver;
a transmission connecting the driver to the fan, wherein the torque applied between the driver and the fan is constant and wherein the fan speed automatically varies in response to system requirements to maintain a ventilation rate determined by applying the ideal gas law. - View Dependent Claims (5, 6, 7, 8, 9, 10)
-
-
11. A method of ventilating, comprising:
-
providing a fan, a motor and a transmission;
determining a ventilation rate by selecting a desired pressure and temperature, and applying the ideal gas law;
driving the fan with the motor through the transmission, whereby fan torque is constant.
-
-
12. A method of ventilating, comprising:
-
providing a fan, a motor and a transmission;
determining a ventilation rate by selecting a desired pressure and temperature;
applying the ideal gas law and driving the fan with the motor through the transmission to maintain the ventilation rate.
-
Specification