Westborough, MA, United States
Westborough, MA, United States

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Patent
Carrier Corporation | Date: 2017-04-05

A compressor (22) comprises a housing (50) having a first port (26) and a second port (28). A male rotor (52) has a working portion (64) having a plurality of lobes (110) of a count (NM) and at least a first shaft portion (62) protruding beyond a first end (68) of the male rotor working portion and mounted for rotation about a first axis (500). A female rotor (54) has a working portion (66) having a plurality of lobes (112) of a count (NF) and mounted for rotation about a second axis (502) so as to be enmeshed with the male rotor working portion. An electric motor (56) is within the housing and has a stator (58) and a rotor (60) mounted to the first shaft portion. The compressor has no additional compressor rotors. The lobe count of the male rotor is less than the lobe count of the female rotor. A combined lobe count (NM + NF) is at least fifteen.


Patent
Carrier Corporation | Date: 2017-01-25

Embodiments are directed to an installation of a first tube made of a first material on a heat exchanger that is different from a second material associated with a second tube of the heat exchanger. The first tube is coupled to the second tube via a porous layer associated with the first tube. A signal is measured between the first tube and the second tube. The measured signal is logged as data. Information associated with a corrosiveness of an environment in which the heat exchanger is located is obtained based on the data.


Patent
Carrier Corporation | Date: 2017-01-25

An evaporator heat exchanger includes a first tube bank having an inlet manifold and a plurality of first heat exchanger tubes arranged in a spaced, parallel relationship. A second tube bank includes an outlet manifold and a plurality of second heat exchanger tubes arranged in a spaced, parallel relationship. An intermediate manifold fluidly coupled the first tube bank and the second tube bank. A distributor insert arranged within the inlet manifold includes a first dividing element configured to define a plurality of first refrigerant chambers therein. A second dividing element is arranged within the intermediate manifold and is configured to define a plurality of second refrigerant chamber therein. Each second dividing element is arranged at a position substantially identical to a corresponding first dividing element. Each second refrigerant chamber is fluidly coupled to the same portion of the first heat exchanger tubes and a corresponding first refrigerant chamber.


Patent
Carrier Corporation | Date: 2017-01-11

A sensor assembly for detecting open or closed state in windows and doors includes a passive infrared sensor configured to produce a change in an electrical signal based on a change in infrared radiation incident on the passive infrared sensor. A lens is operatively connected to the passive infrared sensor. At least a portion of the lens is configured to be mounted in an interface between a frame and a door or window mounted to open and close within the frame. The lens is configured to guide ambient infrared radiation to the passive infrared sensor at a first level when the door or window is closed and at a second level when the door or window is open or ajar.


Patent
Carrier Corporation | Date: 2016-07-07

A collar configured to couple a burner to a partition plate is provided including a body having a diameter configured to couple to a diameter of the burner. A flange extends outwardly from the body. The collar is formed from a heat resistance material such that heat transfer between the burner and the partition plate is limited.


Patent
Carrier Corporation | Date: 2016-07-07

A burner comprising is provided including a burner tube formed at least partially from a first material having a plurality of openings. The plurality of openings are sized to allow a fluid but not particles of debris contained within the fluid to flow there through. A flange extends outwardly from a portion of the burner tube and is receivable within an embossment formed in an adjacent component. The flange is formed from a second material having a plurality of openings such that heat transfer between the flange and the adjacent component is limited.


A notification system, method, and/or computer program product that provides an automatic real-time notification to an owner of a property is provided. Further the notification system, method, and/or computer program determines a location with respect to an electronic lockbox associated with the property and generates a geo-fence environment with respect to the property based on the location. Then, the notification system, method, and/or computer program monitors movements of a user device with respect to the geo-fence environment to determine whether a breach of the geo-fence environment has occurred and outputs the automatic real-time notification to the property owner in response to a determination that the breach of the geo-fence environment has occurred.


Patent
Carrier Corporation | Date: 2016-10-26

A system for protecting an engine (132, 202) from damage due to vibration while the engine (132, 202) is not operating is provided. The system includes an engine (132, 202) having a crankshaft (204), at least one piston (206), at least one bearing (210), a lubricating fluid source (212), and a fluid pump (216) associated therewith and a controller (228) operationally connected to and configured to control the fluid pump (216). When the system is in a first mode, the controller (228) is configured to control the fluid pump (216) in a duty cycle to maintain a predetermined minimum fluid pressure of the lubricating fluid such that a lubricating fluid film is present between the at least one bearing (210) and the crankshaft (204) while the engine (132, 202) is not operating.


Patent
Carrier Corporation | Date: 2016-04-06

A burner assembly is provided including a plurality of burners. Each burner includes a burner tube having an inlet, an outlet, and a burner axis. A partition plate is arranged generally perpendicular to a horizontal plane defined by the plurality of burner axes. The partition plate includes a plurality of partition openings complementary to and arranged coaxially with the plurality of burners. An igniter is located near the plurality of burners and is configured to ignite a fuel and air mixture provided at the outlet of the burners. An ignited carryover includes a substantially identical first opening and second opening formed in the partition plate adjacent the igniter. The first opening and second openings are sized such that a sufficient amount of the fuel and air mixture reaches the igniter without cooling the igniter.


Patent
Carrier Corporation | Date: 2016-07-25

A system and method for monitoring performance of an HVAC unit by receiving outdoor temperature data from an outdoor temperature source and indoor temperature data from an indoor temperature source, tracking performance data of the HVAC unit based at least in part on the outdoor temperature data and the indoor temperature data, receiving power consumption data from the power measuring device, tracking the power consumption data based at least in part on the outdoor temperature data, determining whether there is a change in the performance data and the power consumption data, and generating a fault signal based at least in part on the change in the performance data and the power consumption data.

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