公开(公告)号：US20190204196A1

公开(公告)日：2019-07-04

申请号：US15860087

申请日：2018-01-02

Applicant: Lennox Industries Inc.

Inventor： Henry Greist ,  Sanjeev Hingorani

IPC: G01N7/10 ,  G01L13/00 ,  F24F11/49

CPC classification number: G01N7/10 ,  F24F11/49 ,  G01L13/00

Abstract: In an example a pressure probe includes a tube having an output end, an internal passage, an axial run and pressure orifices axially aligned along a downstream side of the axial run. According to an aspect an upstream side of the axial run opposite from the downstream side of the axial run does not have a pressure orifice.

公开(公告)号：US09751077B2

公开(公告)日：2017-09-05

申请号：US15090725

申请日：2016-04-05

Applicant: Lennox Industries Inc.

Inventor： Sanjeev Hingorani ,  Henry Greist

IPC: A62B7/08 ,  B01D50/00 ,  B01D47/00 ,  B01D53/02 ,  B01J23/34 ,  F02M35/024 ,  B01D53/88 ,  B01D53/86

CPC classification number: B01J23/34 ,  B01D53/8668 ,  B01D53/8675 ,  B01D53/885 ,  B01D2253/102 ,  B01D2253/104 ,  B01D2253/108 ,  B01D2253/206 ,  B01D2255/20707 ,  B01D2255/2073 ,  B01D2255/2092 ,  B01D2255/50 ,  B01D2255/702 ,  B01D2257/106 ,  B01D2257/2045 ,  B01D2257/2047 ,  B01D2257/302 ,  B01D2257/704 ,  B01D2257/708 ,  B01D2258/06 ,  B01D2259/4508 ,  B01D2259/4566 ,  F02M35/02441

Abstract: In various implementations, a filter may include a substrate and manganese oxide coupled to the substrate. The filter may at least remove particles and/or chemicals from a gaseous stream. In some implementations, the filter may be capable of degrading at least one of formaldehyde or ozone present in a gaseous stream.

公开(公告)号：US12287107B2

公开(公告)日：2025-04-29

申请号：US17829171

申请日：2022-05-31

Applicant: Lennox Industries Inc.

Inventor： Rajesh Alayil ,  Henry Todd Greist ,  Sanjeev Hingorani ,  Thomas John Wolowicz

IPC: F24F11/89 ,  F24F11/30 ,  F24F11/74 ,  G01N15/06 ,  F24F13/20 ,  F24F110/64 ,  F24F110/70 ,  G01N33/00

Abstract: A heating, ventilating, and air conditioning (HVAC) system includes at least one indoor air quality monitor. The indoor air quality monitor is formed with an arrangement of chambers—intake chamber, low-flow chamber, and outlet chamber—such that a particulate sensor on an interior and another air quality sensor are neither overwhelmed nor underwhelmed by air flow to the sensors. The indoor air quality monitor may be arranged for attaching to a surface in a conditioned space for sampling air therein or may include a bypass chamber that fluidly couples to an HVAC duct.

公开(公告)号：US20250129955A1

公开(公告)日：2025-04-24

申请号：US19007283

申请日：2024-12-31

Applicant: Lennox Industries Inc.

Inventor： Surendran Ramasamy ,  Sanjeev Hingorani ,  Thomas John Wolowicz ,  Harsh Patel

IPC: F24F11/39 ,  F24F11/64 ,  F24F11/65 ,  F24F11/89 ,  F24F110/64

Abstract: A controller is configured to operate a heating, ventilation, and air conditioning (HVAC) system based on a measurement of a detected quantity of particulate matter from an air quality sensor in relation to a threshold value.

公开(公告)号：US12264830B2

公开(公告)日：2025-04-01

申请号：US18158163

申请日：2023-01-23

Applicant: Lennox Industries Inc.

Inventor： Surendran Ramasamy ,  Sanjeev Hingorani ,  Thomas John Wolowicz ,  Harsh Patel

IPC: F24F11/39 ,  F24F11/64 ,  F24F11/65 ,  F24F11/89 ,  F24F110/64

Abstract: A controller is configured to operate a heating, ventilation, and air conditioning (HVAC) system based on a first plurality of particulate matter measurements and a second plurality of particulate matter measurements. The controller is configured to determine an air filter efficiency for an air filter based on the received first plurality of particulate matter measurements and the received second plurality of particulate matter measurements. The controller is further configured to determine if a quantity of particulate matter in an airflow exceeds a first threshold value based on the received second plurality of particulate matter measurements. In response to determining that the quantity of particulate matter in the airflow does exceed the first threshold value, the controller is configured to transmit a notification indicating an action to inspect the air filter.

公开(公告)号：US20230366581A1

公开(公告)日：2023-11-16

申请号：US17741968

申请日：2022-05-11

Applicant: Lennox Industries Inc.

Inventor： Sanjeev Hingorani ,  Henry Greist ,  Elena Smirnova ,  Pete Hrejsa ,  Emile Abi-Habib ,  Dhishan Kande

IPC: F24F11/74 ,  F24F11/00 ,  F24F11/63

CPC classification number: F24F11/74 ,  F24F11/0001 ,  F24F11/63 ,  F24F2110/66

Abstract: An HVAC system includes one or more air quality sensors, each configured to measure an air quality and a thermostat communicatively coupled to the one or more air quality sensors. The thermostat receives indoor air quality measurements from the one or more air quality sensors. An indoor air quality score is determined based at least in part on the received indoor air quality measurements. The thermostat determines, based at least in part on the indoor air quality score, a mitigation action, wherein the mitigation action comprises one or more actions selected from the group of: (i) a filtering action comprising filtering air provided to the space using an air purification subsystem, and (ii) a ventilation action comprising ventilating the space using a ventilation subsystem. The mitigation action is executed, or implemented, by adjusting one or more components of the HVAC system.

公开(公告)号：US20190374894A1

公开(公告)日：2019-12-12

申请号：US16004129

申请日：2018-06-08

Applicant: Lennox industries Inc.

Inventor： Sanjeev Hingorani ,  Henry Greist ,  Peter Hrejsa

IPC: B01D46/00 ,  F24F3/16 ,  G08B21/18 ,  G05B19/042

Abstract: A method includes initiating, by a controller of a heating, ventilation, and air conditioning (“HVAC”) system, a filter calibration procedure, curve fitting a first line based on a plurality of static pressure measurements and corresponding flowrates of air, and generating a second line based on the first line. The method further includes determining a first static pressure measurement sensed by at least one sensor in response to determining that a first flowrate of air has been moved by the at least one blower and comparing the first static pressure value to a predicted static pressure value of the second line, the predicted static pressure value corresponding to the first flowrate of air. The method further includes determining that an air filter of the HVAC system has no more usable life in response to determining that the first static pressure value is greater than the predicted static pressure value.

公开(公告)号：US20240353296A1

公开(公告)日：2024-10-24

申请号：US18759923

申请日：2024-06-30

Applicant: Lennox Industries Inc.

Inventor： Surendran Ramasamy ,  Henry Greist ,  Sanjeev Hingorani ,  Calvin Michaelis

IPC: G01N1/22 ,  F24F11/89 ,  F24F110/64 ,  F24F110/66 ,  F24F110/70

CPC classification number: G01N1/2247 ,  F24F11/89 ,  G01N1/2273 ,  F24F2110/64 ,  F24F2110/66 ,  F24F2110/70

Abstract: An air quality measuring device that includes a first chamber, a second chamber, a third chamber, and a fourth chamber. The first chamber includes a first inlet configured to receive a first airflow, a first outlet configured to receive a first portion of the first airflow, and a second outlet configured to receive a second portion of the first airflow. The second chamber includes a second inlet configured to receive the first portion of the first airflow and a first sensor disposed within the second chamber. The third chamber includes a third inlet configured to receive the second portion of the first airflow and a second sensor disposed within the third chamber. The fourth chamber includes a fourth inlet configured to receive the second portion of the first airflow and a third sensor disposed within the fourth chamber.

公开(公告)号：US20230383981A1

公开(公告)日：2023-11-30

申请号：US17829171

申请日：2022-05-31

Applicant: Lennox Industries Inc.

Inventor： Rajesh Alayil ,  Henry Todd Greist ,  Sanjeev Hingorani ,  Thomas John Wolowicz

IPC: F24F11/74 ,  F24F11/30

CPC classification number: F24F11/74 ,  F24F11/30 ,  F24F2110/70

Abstract: A heating, ventilating, and air conditioning (HVAC) system includes at least one indoor air quality monitor. The indoor air quality monitor is formed with an arrangement of chambers—intake chamber, low-flow chamber, and outlet chamber—such that a particulate sensor on an interior and another air quality sensor are neither overwhelmed nor underwhelmed by air flow to the sensors. The indoor air quality monitor may be arranged for attaching to a surface in a conditioned space for sampling air therein or may include a bypass chamber that fluidly couples to an HVAC duct. Other systems and methods are presented.

公开(公告)号：US20210190657A1

公开(公告)日：2021-06-24

申请号：US17194412

申请日：2021-03-08

Applicant: Lennox Industries Inc.

Inventor： Henry Greist ,  Sanjeev Hingorani

IPC: G01N7/10 ,  F24F11/49 ,  G01L13/00 ,  G01L19/00

Abstract: In an embodiment, the present disclosure pertains to a pressure probe. In some embodiments, the pressure probe includes a tube having an output end, an internal passage, an axial run, and pressure orifices axially aligned along a downstream side of the axial run. In some embodiments, the pressure orifices are in communication with the output end through the internal passage and an upstream side of the axial run that is opposite from the downstream side of the axial run and does not include a pressure orifice. Additionally, in some embodiments, the downstream side is perpendicular to airflow.