Muffler Or Sound Dampener Patents (Class 62/296)
  • Patent number: 11353239
    Abstract: A ventilation assembly and methods of forming the same includes a ventilation grille having reducing acoustic bodies configured to attenuate sound of the ventilation assembly. Arrangement of the acoustic bodies can form phononic crystal to attenuate sound and can be tuned to desired sound bands to reduce sounds.
    Type: Grant
    Filed: August 28, 2019
    Date of Patent: June 7, 2022
    Assignee: Broan-NuTone LLC
    Inventors: Patrick Bouche, Raymond Panneton, Brent Lillesand, Jean-Bernard Piaud, Rick Sinur
  • Patent number: 11293648
    Abstract: A compressor cover includes a side cover that surrounds a side peripheral surface of a compressor and a top cover provided above the compressor to cover along with the side cover, the compressor. The top cover has a first slope that extends such that an outer peripheral portion of the top cover is located lower than a central portion of the top cover.
    Type: Grant
    Filed: August 23, 2017
    Date of Patent: April 5, 2022
    Assignee: Mitsubishi Electric Corporation
    Inventor: Motoki Otsuka
  • Patent number: 11274875
    Abstract: A sound-insulating refrigerator vacuum assembly, comprising a sealed box receiving a vacuum pump, the sealed box body comprises an upper sealing body and a lower sealing body, the upper sealing body and the lower sealing body can be snap-fitted to define a receiving cavity, and the vacuum pump is placed in the receiving cavity; the vacuum assembly further comprises an air pipe member, the air pipe member comprises an air inlet pipe, an air outlet pipe and a base plate that are integrally formed, and the air inlet pipe and the air outlet pipe are disposed through the base plate; a notch portion is provided in the sealed box, and an outer edge of the base plate matches the notch portion in shape; the vacuum pump is connected with a muffler.
    Type: Grant
    Filed: December 7, 2018
    Date of Patent: March 15, 2022
    Assignee: QINGDAO HAIER CO., LTD.
    Inventors: Jianquan Chen, Chun Yang, Hao Zhang, Enpin Xia
  • Patent number: 11242013
    Abstract: To reduce discomfort of occupants caused by operation sound of a camera cooling system in a vehicle, a vehicle-mounted camera includes a camera cooler and a controller. The vehicle-mounted camera is installed inside of a windshield. The camera cooler cools the vehicle-mounted camera. The controller determines if the vehicle-mounted camera is in a high temperature state. If it is determined that the vehicle-mounted camera is in the high temperature state, the controller controls the camera cooler to operate. The controller controls an air conditioner to provide a sound generation process to generate concealing sound to conceal operation sound caused by the camera cooler when the air conditioner operates.
    Type: Grant
    Filed: July 17, 2019
    Date of Patent: February 8, 2022
    Assignee: DENSO CORPORATION
    Inventors: Takeshi Kazama, Takayuki Kimura, Nobuhisa Shimizu
  • Patent number: 11067299
    Abstract: A packaged terminal air conditioner unit includes an inlet conduit coupled to a compressor at an accumulator of the compressor. An outlet conduit is coupled to the compressor at a discharge of the compressor. The discharge of the compressor is positioned at a top portion of the compressor. The outlet conduit extends upwardly along a vertical direction from the discharge of the compressor between a pair of angled segments of the inlet conduit. The pair of angled segments of the inlet conduit is positioned above the compressor along the vertical direction.
    Type: Grant
    Filed: March 1, 2018
    Date of Patent: July 20, 2021
    Assignee: Haier US Appliance Solutions, Inc.
    Inventors: Richard Dustin Henderson, Robert William Jewell, Tal Abraham Ohayon
  • Patent number: 11053626
    Abstract: A pump mount system for a laundry treating appliance having a cabinet and a pump located within the cabinet, the pump mount system comprising a cabinet mount secured to the cabinet, a pump mount secured to the pump, a vibration isolator having a first portion passing through a first opening on the pump mount, a second portion extending between the pump mount and the cabinet mount, and a pin aperture passing through the vibration isolator, a pin removably received within the pin aperture.
    Type: Grant
    Filed: July 20, 2018
    Date of Patent: July 6, 2021
    Assignee: Whirlpool Corporation
    Inventors: Alejandro Guzman, Dennis Kehl
  • Patent number: 10815601
    Abstract: Disclosed is a laundry treatment apparatus including a cabinet, a tub provided inside the cabinet for providing a space for storage of water, a drum rotatably provided inside the tub for providing a space for storage of laundry, a first water drain pipe for communicating with an inside of the tub, a second water drain pipe for communicating with an outside of the cabinet, a pump for moving water, introduced into the first water drain pipe, to the second water drain pipe, and a damper having one end fixed to a side surface of the pump that is defined as a space between a lowermost end of the pump and an uppermost end of the pump and an opposite end fixed to a cabinet bottom surface for attenuating vibrations generated in the pump.
    Type: Grant
    Filed: November 15, 2017
    Date of Patent: October 27, 2020
    Assignee: LG Electronics Inc.
    Inventors: Bosun Chung, Atul Dhiman, Sagar Lawhate, Srinivas Ganeboina, Pradeep Mullapudi
  • Patent number: 10739040
    Abstract: Disclosed herein is an air conditioner in which flow noise of a refrigerant is reduced. An air conditioner includes a compressor configured to compress a refrigerant, an outdoor heat exchanger in which the refrigerant exchanges heat with outside air, an expansion device configured to expand the refrigerant, an indoor heat exchanger in which the refrigerant exchanges heat with indoor air, and a muffler configured to reduce flow noise of the refrigerant flowing into the indoor heat exchanger, wherein the muffler includes a shell including a refrigerant inlet and a refrigerant outlet, a first baffle disposed at one side of an inner part of the shell and including a plurality of first holes, a plurality of pipes inserted into the plurality of first holes and serving as passages through which the refrigerant moves, and a second baffle disposed at the other side of the inner part of the shell and including a plurality of second holes through which the refrigerant passing through the pipe passes.
    Type: Grant
    Filed: July 6, 2017
    Date of Patent: August 11, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jae-Woo Choi, Du Han Jung, Jun Seok Kwon, Ki Seok Kim, Hyeong Joon Seo
  • Patent number: 10684060
    Abstract: A mounting structure of a compressor for a refrigerator that includes: a base on which the compressor is mounted; a compressor that includes: a main body, and an ear mount that is coupled to the main body and that is configured to mount on the base; a post that is coupled to the base, that extends upwardly from the base, and that is configured to couple to the ear mount; a vibration absorber that is interposed between the ear mount and the base and that is configured to absorb vibration of the compressor; a stopper that is configured to restrict the ear mount from departing from the post; and an inner ear mount that includes a hole that is open toward a first direction, wherein the compressor is inserted into the machine room in the first direction, is disclosed.
    Type: Grant
    Filed: October 25, 2017
    Date of Patent: June 16, 2020
    Assignee: LG Electronics Inc.
    Inventor: Sang Hoon Song
  • Patent number: 10674590
    Abstract: A tank may include: a tank main body having a space and an opening; a lid body covering the opening and a peripheral portion of the opening; a bolt for fixing the tank main body and the lid body in the peripheral portion; a first support portion arranged to surround the opening in a region on a side of the opening with respect to the bolt to support the lid body; a second support portion arranged to surround the opening in a region on the opening side with respect to the first support portion and having a height lower than a height of the first support portion; and a sealing member arranged to surround the opening in the region on the opening side with respect to the first support portion.
    Type: Grant
    Filed: September 10, 2018
    Date of Patent: June 2, 2020
    Assignee: Gigaphoton Inc.
    Inventors: Toshiyuki Hirashita, Toshihiro Nishisaka
  • Patent number: 10647178
    Abstract: Heat pump type air conditioner for a vehicle in which a noise generated in opening an opening/closing valve (a solenoid valve) during changing of an operation mode is eliminated or reduced. The air conditioner has a dehumidifying and heating mode to let a refrigerant radiate heat in a radiator 4, decompress the refrigerant, and let the refrigerant absorb heat in heat absorber 9 and outdoor heat exchanger 7, and a cooling mode to let the refrigerant radiate heat in the outdoor heat exchanger, decompress the refrigerant, and let the refrigerant absorb heat in the heat absorber. Solenoid valve 21 and solenoid valve 22 opened in the dehumidifying and heating mode. When changing an operation mode from the cooling mode to the dehumidifying and heating mode, a difference between a pressure before each solenoid valve and a pressure after the valve is reduced, and then these valves are opened.
    Type: Grant
    Filed: June 7, 2016
    Date of Patent: May 12, 2020
    Assignee: SANDEN AUTOMOTIVE CLIMATE SYSTEMS CORPORATION
    Inventors: Kenichi Suzuki, Ryo Miyakoshi, Kohei Yamashita
  • Patent number: 10054344
    Abstract: An expansion valve includes a main body including a first valve chamber having a first opening communicating with a first pipe, a second valve chamber having a second opening communicating with a second pipe, and a valve hole connecting the first valve chamber and the second valve chamber to each other, a valve body including a first main shaft, at least a part of which is provided in the first valve chamber, a second main shaft, at least a part of which is provided in the second valve chamber, and a constricted portion provided in the valve hole and connecting the first main shaft and the second main shaft to each other, a first porous member provided in a first passage between the first pipe and the valve hole, and a first shield member provided in a region of the first passage between the first pipe and the first porous member, and shields a part of a passage cross-section of the first passage.
    Type: Grant
    Filed: July 2, 2014
    Date of Patent: August 21, 2018
    Assignee: Mitsubishi Electric Corporation
    Inventors: Masahiro Ito, Yusuke Shimazu
  • Patent number: 9951765
    Abstract: A linear compressor, a shell for a linear compressor, and a method for manufacturing a shell of a linear compressor are provided. The shell may have at least one portion having a multilayer plate, in which at least two plates may be stacked in a direction substantially perpendicular to an axis of a piston so as to accommodate a cylinder, the piston, which may be reciprocated within the cylinder, and a motor assembly directly connected to the piston to provide a drive force to the piston. At least one resonator may be disposed in or at at least a portion of an inner surface of the shell.
    Type: Grant
    Filed: March 18, 2015
    Date of Patent: April 24, 2018
    Assignee: LG ELECTRONICS INC.
    Inventors: Sunghyun Ki, Kyeongbae Park, Wonhyun Jung
  • Patent number: 9638443
    Abstract: An air-conditioning apparatus is capable of suppressing refrigerant flow noise regardless the refrigerant state of an inlet of an expansion mechanism. In parallel to a flow control valve, an opening and closing valve that opens and closes a refrigerant passage and an expansion mechanism having porous bodies capable of passing a refrigerant therethrough are connected in series with each other. In a heating mode, in the case where a controller stops an operation of one or more of a plurality of indoor units and causes the other indoor unit(s) to operate, the flow control valve of the stopped indoor unit is fully closed and the opening and closing valve of the stopped indoor unit is opened.
    Type: Grant
    Filed: June 14, 2011
    Date of Patent: May 2, 2017
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Yusuke Shimazu, Yoshihiro Sumida, Koji Azuma
  • Publication number: 20150047383
    Abstract: There is provided a compressor fixing structure capable of preventing vibrations from a compressor from being spread to the entirety of a product in which the compressor is installed. The compressor fixing structure includes: a plurality of support units disposed to have a polygonal structure and protruded from a bottom surface; a support unit anti-vibration rib protruded from a perimeter of each of the plurality of support units; and an outer anti-vibration rib surrounding the entirety of the plurality of support units and protruded from a bottom surface. Spreading of vibrations from a compressor installed in a product is minimized, reducing vibrations and noise generated by the compressor when the compressor is driven.
    Type: Application
    Filed: March 12, 2013
    Publication date: February 19, 2015
    Applicants: Coway Co., Ltd., WINIX Inc.
    Inventors: Hyun-Jin Hong, Chan-Jung Park, Sang-Woo Kang
  • Patent number: 8950208
    Abstract: An outdoor for an air conditioner according to the exemplary embodiment of the present invention includes: a casing; a compressor installed in the casing and compressing refrigerant; an accumulator installed in the casing and separating liquid refrigerant from refrigerant that flows into the compressor; and a soundproof member absorbing or insulating noise generated while the compressor operates and placed to at least surround the compressor, wherein the soundproof member includes: a first soundproof member absorbing or insulating noise by forming an outer surface of the soundproof member; and a second soundproof member provided in the first soundproof member and absorbing noise in a relatively lower-frequency band than the first soundproof member.
    Type: Grant
    Filed: November 29, 2011
    Date of Patent: February 10, 2015
    Assignee: LG Electronics Inc.
    Inventors: Seongwon Bae, Deok Huh, Sanggil Park
  • Publication number: 20150033785
    Abstract: There are provided a compressor noise suppressing structure and a dehumidifier having the same. The compressor noise suppressing structure includes an installation member fixed to a base frame to support and accommodate a component installed within a housing, and a noise-proof member extending from the installation member to cover at least one side of the compressor to block noise from the compressor. According to the compressor noise suppressing structure, noise generated when the compressor is operated is simultaneously blocked by the nose-proof member and the housing, and the installation member and the noise-proof member are configured as a single component, improving assembly characteristics and simplifying a fabrication process.
    Type: Application
    Filed: December 28, 2012
    Publication date: February 5, 2015
    Applicants: COWAY CO., LTD., WINIX
    Inventors: Hyun-Jin Hong, Chan-Jung Park, Sang-Woo Kang
  • Patent number: 8935937
    Abstract: A turbulence creating energy saving device which is installed on top of the air conditioner or refrigeration condenser or cooling tower. The device directs the hot air leaving the condenser or cooling tower straight up forcing the hot airflow through a series of fixed blades, causing the air to spiral creating a turbulence, thereby increasing the amount of air flowing through the cylindrical tube, in turn moving a larger amount of air through the condenser. The top of the device has a cowling with a reduced output diameter to reduce the output noise level. By adding the device to the top of the condenser or cooling tower the airflow is greatly improved, reducing the time to cool the unit, therefore a reduction in the use of hydroelectricity and extending the life expectancy and provides ability to save money.
    Type: Grant
    Filed: November 1, 2006
    Date of Patent: January 20, 2015
    Assignee: Vairtex Canada Inc.
    Inventors: Gerard Alfred Godbout, Debra Anne Claire Godbout
  • Publication number: 20140318162
    Abstract: A method is provided including receiving a first input indicative of a desired design capacity of a refrigeration system, and receiving a second input indicative of a desired maximum acoustical noise of the refrigeration system. The method also includes iteratively selecting a candidate compressor system from a set of compressor systems, and iteratively selecting a candidate condenser system from a set of condenser systems. In addition, the method includes simulating operation of the refrigeration system based on the candidate compressor system and the candidate condenser system until a suitable refrigeration system is established having a computed design capacity greater than or equal to the desired design capacity, and a computed maximum acoustical noise less than or equal to the desired maximum acoustical noise. The method further includes providing an output indicative of the candidate compressor system and the candidate condenser system of the suitable refrigeration system.
    Type: Application
    Filed: November 29, 2012
    Publication date: October 30, 2014
    Applicant: Johnson Controls Technology Company
    Inventors: William L. Kopko, Atul Singh, Satheesh Kulankara, Andrew J. Graybill, Lewis M. Bass
  • Publication number: 20140250937
    Abstract: A compression mechanism portion housed in a closed case is provided with a partition plate located between a first cylinder and a second cylinder. The compression mechanism includes a first bearing discharge port formed to a first bearing and a first partition plate discharge port formed to the partition plate as discharge ports for discharging working fluid compressed in a first cylinder chamber, and also includes, as discharge port for discharging working fluid compressed in a second cylinder chamber, a second bearing discharge port formed to a second bearing and a second partition plate discharge port formed to the partition plate. A cross-sectional area of the first partition plate discharge port is formed to be smaller than a cross-sectional area of the first bearing discharge port, and a cross-sectional area of the second partition plate discharge port is formed to be smaller than a cross-sectional area of the second bearing discharge port.
    Type: Application
    Filed: September 20, 2012
    Publication date: September 11, 2014
    Applicant: Toshiba Carrier Corporation
    Inventor: Takuya Hirayama
  • Publication number: 20140216094
    Abstract: An outdoor unit includes: a compressor, and a sound deadening material having sound deadening properties. The sound deadening material includes a first sound absorbing material made of glass fibers, a first scatter prevention member which prevents scattering of the glass fiber from one principal surface of the first sound absorbing material by covering the one principal surface, and a second scatter prevention member which prevents scattering of the glass fiber from the other the other principal surface of the first sound absorbing material by covering the other principal surface. The first scatter prevention member is a sound absorbing material made of fibers having high fiber strength than the glass fibers. The second scatter prevention member is a sound insulating material. The sound deadening material is wound around the compressor so that the first scatter prevention member faces the compressor.
    Type: Application
    Filed: July 27, 2012
    Publication date: August 7, 2014
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Keitarou Hoshika, Takayuki Setoguchi, Yoshinobu Tsumura, Shinichi Negoro
  • Patent number: 8756941
    Abstract: A cryogenic apparatus is provided having a nested thermally insulating structure, thermal links, a vacuum shroud, and a cryo-cooler. The nested thermally insulated structure holds a sample to be cooled while dampening the external vibrations caused by the cryo-cooler, the surrounding environment or cryo-cooler mounting surface. The thermal link is made of thermally conductive wires which connect the nested thermally insulated structure and the cryo-cooler thereby allowing the apparatus to reduce vibrations inherent in the operation of the cryo-cooler.
    Type: Grant
    Filed: December 4, 2012
    Date of Patent: June 24, 2014
    Assignee: S2 Corporation
    Inventors: David Snow, Michael Chase, Alex Woidtke, Luke Mauritsen, Peter B. Sellin, Kris Merkel
  • Patent number: 8720220
    Abstract: To reduce the noise level of air convective warmer, the air filter of the warmer is fitted with an air intercept mechanism to disrupt the flow of air that traverses inside the interior cavity of the air filter. By thus disrupting the air flow, the noise that otherwise would have been generated due to a non-interrupted air stream flow is lowered. The air intercept mechanism may be in the form of at least one partition positioned inside the interior cavity of the air filter. Alternatively, double-ended open tubes may be used, so long as the interior cavity of the filter is sealed, with only the tubes providing the passages for air to output from the air filter. Yet a third embodiment of the air reduction filter has an air impermeable material covering at least one portion of the surface area of the filtering material to prevent the inflow air from directly entering into the interior cavity of the air filter through the covered surface area.
    Type: Grant
    Filed: May 18, 2007
    Date of Patent: May 13, 2014
    Assignee: Smiths Medical ASD, Inc.
    Inventors: Joseph Pierre, Rachel Starr, David G. Roome
  • Patent number: 8695888
    Abstract: An Electronically-Controlled Register vent (ECRV) that can be easily installed by a homeowner or general handyman is disclosed. The ECRV can be used to convert a non-zoned HVAC system into a zoned system. The ECRV can also be used in connection with a conventional zoned HVAC system to provide additional control and additional zones not provided by the conventional zoned HVAC system. In one embodiment, the ECRV is configured have a size and form-factor that conforms to a standard manually-controlled register vent. In one embodiment, a zone thermostat is configured to provide thermostat information to the ECRV. In one embodiment, the zone thermostat communicates with a central monitoring system that coordinates operation of the heating and cooling zones.
    Type: Grant
    Filed: October 7, 2011
    Date of Patent: April 15, 2014
    Assignee: Nest Labs, Inc.
    Inventor: Lawrence Kates
  • Publication number: 20140047852
    Abstract: An air conditioner that improves efficiency of an inverter compressor by injecting an intermediate pressure refrigerant to the inverter compressor during heating or cooling and a control method thereof are provided.
    Type: Application
    Filed: April 29, 2013
    Publication date: February 20, 2014
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Kyung Hoon Kim, Hyun Wuk Kang, Mun Sub Kim, You Jae Kim, Suk Ho Lee, Se Won Kim, Tae Il Kim, Jin Yong Mo, Jong Won Bak, Hyeong Joon Seo, Je Jin Lee, Min Chang, Dong Il Jung, Il Yong Cho, Man Ki Ha
  • Publication number: 20130312433
    Abstract: An apparatus including a magnetic attenuator substantially surrounding a non-rotatable portion of the apparatus.
    Type: Application
    Filed: January 31, 2012
    Publication date: November 28, 2013
    Applicant: JOHNSON CONTROLS TECHNOLOGY COMPANY
    Inventor: Paul Nemit, JR.
  • Publication number: 20130283841
    Abstract: An internal heat exchanger for an air conditioning system, having: a high pressure side through which a coolant under high pressure flows in operation; and a low pressure side through which coolant under low pressure flows in operation. The heat exchanger is configured in such a way that pulsations of the coolant flowing therethrough dampen noise.
    Type: Application
    Filed: February 13, 2013
    Publication date: October 31, 2013
    Inventors: Markus Markowitz, Dietmar Fischer
  • Patent number: 8527095
    Abstract: A cooling system constructed to cool down an accumulator mounted on a motor vehicle is herein presented. The cooling system sequentially controls an air blower to restrict the air blow to the accumulator, controls the air blow mode switchover module to switch over the active air blow mode after restriction of the air blow to the accumulator, and controls the air blower to release the restriction of the air blow to the accumulator after the switchover of the active air blow mode by the air blow mode switchover module.
    Type: Grant
    Filed: June 13, 2007
    Date of Patent: September 3, 2013
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Yoshiaki Kikuchi, Yasumitsu Omi, Shinji Wakao, Takenori Tsuchiya, Mikio Katashima, Kazuhiko Nakashima, Tetsuya Ishihara
  • Patent number: 8516834
    Abstract: A cryogenic apparatus is provided having a nested thermally insulating structure, thermal links, a vacuum shroud, and a cryo-cooler. The nested thermally insulated structure holds a sample to be cooled while dampening the external vibrations caused by the cryo-cooler, the surrounding environment or cryo-cooler mounting surface. A vacuum plate is removably attached to the vacuum shroud to provide access to the sample chamber.
    Type: Grant
    Filed: August 14, 2009
    Date of Patent: August 27, 2013
    Assignee: S2 Corporation
    Inventors: David Snow, Michael Chase, Alex Woidtke, Luke Mauritsen, Isaac Henslee, Peter B. Sellin, Kris Merkel
  • Patent number: 8474281
    Abstract: Provided, in aspect, is a suspension bracket for use with an HVAC component. The suspension bracket, in one embodiment, may include a base portion, a first tab portion coupled to the base portion, wherein the first tab portion is positioned substantially perpendicular to the base portion, and a second tab portion coupled to the base portion. The second tab portion, in this embodiment, may include a first region and a second region, wherein the first region is positioned substantially perpendicular to the base portion, and further wherein the second region is positioned substantially perpendicular to the base portion and the first region.
    Type: Grant
    Filed: July 12, 2010
    Date of Patent: July 2, 2013
    Assignee: Lennox Industries Inc.
    Inventor: Lalit Kumar
  • Patent number: 8462193
    Abstract: A multimedia conferencing system includes a loud speaker system, one or more microphones for receiving a local audio signal and a remote audio signal, a state machine and an echo canceller that operates in conjunction with two reference signals to remove substantially all of a feedback signal component in the local audio signal that results from reinforcing and playing the local audio signal over the loud speaker system. The state machine operates to detect that only the local audio is active, and if so controls the operation of the echo canceller such that only the feedback component of the local audio signal is removed and the local audio signal is not suppressed.
    Type: Grant
    Filed: January 8, 2010
    Date of Patent: June 11, 2013
    Assignee: Polycom, Inc.
    Inventors: Kwan Truong, Peter Chu, Michael Pocino, John Allen
  • Publication number: 20130095745
    Abstract: A damper blade is moved within an air control module connected to the discharge of a high-velocity blower, thereby modulating the electric power consumption of the blower motor.
    Type: Application
    Filed: December 7, 2012
    Publication date: April 18, 2013
    Inventor: FARHAD DAVLEDZAROV
  • Patent number: 8397531
    Abstract: A compressor has a suction port, a discharge port, and an economizer port. A condenser is downstream of the discharge port. An evaporator is upstream of the suction port. An expansion device is between the condenser and the evaporator. An economizer is between the condenser and the evaporator. An economizer line extends from the economizer to the economizer port. A resonator is located in the economizer line and has a first branch and a second branch. A first flowpath length across the resonator through the second branch is longer than a second flowpath length across the resonator through the first branch.
    Type: Grant
    Filed: October 11, 2006
    Date of Patent: March 19, 2013
    Assignee: Carrier Corporation
    Inventor: David M. Rockwell
  • Patent number: 8322157
    Abstract: A liquid coolant flow straightener is provided for use with a cooling system to at least partially straighten flow of liquid coolant, promoting de-aeration of the liquid coolant.
    Type: Grant
    Filed: August 26, 2009
    Date of Patent: December 4, 2012
    Assignee: Deere & Company
    Inventors: Cody L. Petersen, Richard C. Broessel
  • Publication number: 20120279245
    Abstract: A discharge device for a refrigeration compressor is provided. The device can include a discharge tube connected with the discharge of the refrigeration compressor. A bellows surrounds a perforated portion of the discharge tube. The length of the discharge tube can be minimized to decrease pressure loss. The discharge can be insulated to prevent the distribution of heat to the compressor and/or to allow for the recovery of heat energy later in the refrigeration cycle.
    Type: Application
    Filed: May 2, 2011
    Publication date: November 8, 2012
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Pradip Radhakrishnan Subramaniam, Balide Venkatesham, Chetan Sharadchandra Tulapurkar, Ravindra Gopaldas Devi, Hiteshkumar Mistry, Bhaskar Tamma, Mallampalli Srinivas
  • Patent number: 8276398
    Abstract: A muffling apparatus (100) is provided for placement within an oil separator of refrigeration or cooling system, wherein the apparatus has a non-straight shape and a lumen (160) defined therein to allow for noise-creating pressure pulsations/waves to come into contact with absorbing material (110) of the muffling apparatus in order to attenuate the energy of the pressure waves/pulsations into heat and thus reduce oil separator vibrations caused thereby.
    Type: Grant
    Filed: May 31, 2005
    Date of Patent: October 2, 2012
    Assignee: Carrier Corporation
    Inventors: Michal Karol Grabon, Xavier Girod, Eric Voluet
  • Patent number: 8266920
    Abstract: An object of the present invention is to reduce electrical noise in accordance with the necessity of a countermeasure taken against electrical noise without changing a structure of an expansion valve. In a case where a judgment result as to whether or not the countermeasure against electrical noise is taken is affirmative, a drive timing (interval) of an expansion valve (107) is increased. Further, a driving amount is reduced. Accordingly, a flow of a refrigerant is made slow, whereby it is possible to reduce generated electrical noise while performing instructed temperature control.
    Type: Grant
    Filed: February 19, 2008
    Date of Patent: September 18, 2012
    Assignee: Daikin Industries, Ltd.
    Inventors: Morikuni Natsume, Hiroshi Doumae, Satoshi Yagi, Yasuaki Miyaba, Hisashi Sumida
  • Patent number: 8230695
    Abstract: Provided is an indoor unit of an air conditioner. The structures of the indoor unit, such as the relationship between an inlet and an outlet, the shape of a rear guide, and the relationship between the outlet and a vane, are improved. Therefore, the airflow of the indoor unit is stable, and the noise level of the indoor unit is low.
    Type: Grant
    Filed: May 18, 2007
    Date of Patent: July 31, 2012
    Assignee: LG Electronics Inc.
    Inventors: Jung-Hoon Kim, Dong-Soo Moon, Ki-Won Seo, Deok Huh
  • Publication number: 20120167608
    Abstract: An outdoor for an air conditioner according to the exemplary embodiment of the present invention includes: a casing; a compressor installed in the casing and compressing refrigerant; an accumulator installed in the casing and separating liquid refrigerant from refrigerant that flows into the compressor; and a soundproof member absorbing or insulating noise generated while the compressor operates and placed to at least surround the compressor, wherein the soundproof member includes: a first soundproof member absorbing or insulating noise by forming an outer surface of the soundproof member; and a second soundproof member provided in the first soundproof member and absorbing noise in a relatively lower-frequency band than the first soundproof member.
    Type: Application
    Filed: November 29, 2011
    Publication date: July 5, 2012
    Inventors: Seongwon BAE, Deok HUH, Sanggil PARK
  • Publication number: 20120118000
    Abstract: The present invention provides a refrigerator which enable to make effective arrangement elements in a machine room on a top of the refrigerator, and to absorb and cut off noise and vibration from the elements enabling quiet operation. To do this, the refrigerator includes a body formed to have a freezing chamber and a refrigerating chamber, a machine room formed on a top of the body to have a front region and a rear region, and a vibration isolating member for attenuating vibration in the machine room.
    Type: Application
    Filed: August 5, 2010
    Publication date: May 17, 2012
    Inventors: Su Nam Chae, Jang Seok Lee, So Hee Park, Youn Seok Lee, Min Kyu Oh
  • Patent number: 8166775
    Abstract: A system and method for reducing noise in an automotive heating, ventilation, and cooling system is described. A noise attenuation device using radial vanes upstream of a flow discontinuity, such as a bend in the ducting, and downstream of a blower fan is used to reduce noise.
    Type: Grant
    Filed: October 9, 2003
    Date of Patent: May 1, 2012
    Assignee: Ford Global Technologies, LLC
    Inventor: Michael Choi
  • Publication number: 20120085118
    Abstract: A refrigerant compressor that enhances compressor efficiency by both reducing an amplitude of pressure pulsations and reducing pressure losses in a discharge muffler space into which is discharged a refrigerant compressed at a compression unit. A low-stage discharge muffler space is formed in the shape of a ring around a drive shaft. In the low-stage discharge muffler space, a discharge port rear guide is provided in the proximity of a discharge port through which is discharged the refrigerant compressed by a low-stage compression unit. The discharge port rear guide is provided at a flow path in one direction out of two flow paths from the discharge port to a communication port in different directions around the drive shaft, and prevents the refrigerant from flowing in that direction, thereby causing the refrigerant to circulate in a forward direction in the ring-shaped discharge muffler space.
    Type: Application
    Filed: May 24, 2010
    Publication date: April 12, 2012
    Applicant: Mitsubishi Electric Corporation
    Inventors: Tetsuhide Yokoyama, Toshihide Koda, Shin Sekiya, Kei Sasaki, Raito Kawamura, Taro Kato, Atsuyoshi Fukaya, Takeshi Fushiki, Hideaki Maeyama, Masao Tani
  • Publication number: 20120085119
    Abstract: A device that enhances compressor efficiency by reducing pressure losses in a discharge muffler space into which is discharged a refrigerant compressed by a compression unit. A low-stage discharge muffler space is formed in the shape of a ring around a drive shaft. In the low-stage discharge muffler space, a communication port flow guide is provided so as to cover a predetermined area of an opening of a communication port from a side of a flow path in a reverse direction out of two flow paths in different directions around the drive shaft from a discharge port through which is discharged the refrigerant compressed by a low-stage compression unit to the communication port through which the refrigerant flows out. The communication port flow guide transforms a direction of a flow into a direction of a connecting flow path.
    Type: Application
    Filed: May 24, 2010
    Publication date: April 12, 2012
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Tetsuhide Yokoyama, Raito Kawamura, Kei Sasaki, Shin Sekiya, Taro Kato, Masao Tani, Atsuyoshi Fukaya, Takeshi Fushiki
  • Patent number: 8146707
    Abstract: An air conditioner includes a cabinet configured to define an outer appearance of the air conditioner. The air conditioner also includes a front panel coupled to the cabinet and having an intake hole. The air conditioner further includes a fan assembly positioned within the cabinet and configured to guide a flow of air in the cabinet. The air conditioner further includes an intake panel configured to move to open or close the intake hole in response to a control signal. In addition, the air conditioner includes at least one noise reducing part positioned in the intake panel and configured to reduce a noise having at least one frequency bandwidth.
    Type: Grant
    Filed: December 18, 2009
    Date of Patent: April 3, 2012
    Assignee: LG Electronics Inc.
    Inventors: In Ho Choi, Jong Chan Park, Han Lim Choi, Dong Whan Choi, Nam Sik Yim
  • Patent number: 8122732
    Abstract: Disclosed is a refrigerator having a noise reduction structure. According to the refrigerator, a branch pipe for reducing the intensive noise occurring from an impeller part is provided to a discharge pipe connected so that the refrigerant is discharged in a direction of a condenser from the impeller part. Therefore, the traveling sound wave of the noise traveling along the discharge pipe and the reverse sound wave traveling toward the branch pipe provided to the outer periphery of the discharge pipe meet each other, so that the both sound waves are cancelled to reduce the noise.
    Type: Grant
    Filed: September 7, 2007
    Date of Patent: February 28, 2012
    Assignee: LG Electronics Inc.
    Inventors: Joon Keun Lee, Jeong Ho Kim, Won Ki Park
  • Publication number: 20120011875
    Abstract: A refrigerator which includes an outer case defining the outer appearance of the refrigerator, the inner case received in the outer case and defining a storage compartment, the insulation member filled in a gap between the outer case and the inner case for heat insulation, and a noise attenuation member disposed between an outer surface of the inner case and the insulation member to induce a sliding movement between the inner case and the insulation member. The insulation member is slidable relative to the insulation member when the inner case expands or contracts in accordance with a variation of temperature, whereby the generation of frictional noise due to friction between the inner case and the insulation member can be greatly reduced.
    Type: Application
    Filed: July 5, 2011
    Publication date: January 19, 2012
    Inventors: Jong Hak Oh, Chun Young Oh, Sang Soo Kim
  • Publication number: 20120011876
    Abstract: A discharge muffler includes a muffler container. In the muffler container, refrigerating machine oil is separated from refrigerant gas containing the refrigerating machine oil, and the refrigerating machine oil is stored in a lower space. An inlet of an outlet pipe connected to the muffler container opens in the lower space.
    Type: Application
    Filed: March 24, 2010
    Publication date: January 19, 2012
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Kenichi Sata, Shuuji Fujimoto
  • Patent number: 8033479
    Abstract: An Electronically-Controlled Register vent (ECRV) that can be easily installed by a homeowner or general handyman is disclosed. The ECRV can be used to convert a non-zoned HVAC system into a zoned system. The ECRV can also be used in connection with a conventional zoned HVAC system to provide additional control and additional zones not provided by the conventional zoned HVAC system. In one embodiment, the ECRV is configured have a size and form-factor that conforms to a standard manually-controlled register vent. In one embodiment, a zone thermostat is configured to provide thermostat information to the ECRV. In one embodiment, the zone thermostat communicates with a central monitoring system that coordinates operation of the heating and cooling zones.
    Type: Grant
    Filed: January 30, 2007
    Date of Patent: October 11, 2011
    Inventor: Lawrence Kates
  • Publication number: 20110197616
    Abstract: A heat pump apparatus that can easily prevent noise generated during partial-load operation is provided. The heat pump apparatus includes a centrifugal compressor configured to compress a refrigerant; a condenser configured to condense the compressed refrigerant; an expansion valve configured to adiabatically expand the condensed refrigerant; an evaporator configured to vaporize the adiabatically-expanded refrigerant; a container into which the vaporized refrigerant flows and from which the refrigerant that flowed in flows out to the centrifugal compressor; a sound-insulating member configured to cover the container and prevent sound generated inside the container from leaking outside; a bypass channel configured to guide part of the refrigerant from an area between the centrifugal compressor and the condenser to the container; and a flow control valve configured to control the flow rate of the refrigerant flowing through the bypass channel.
    Type: Application
    Filed: March 29, 2010
    Publication date: August 18, 2011
    Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Kenichiro Nishii, Kenji Ueda, Kazuki Wajima
  • Publication number: 20110197615
    Abstract: A vehicle air conditioning unit includes: a slide door which controls an opening ratio of an opening allowing an air stream to flow therethrough; a deflection suppressing portion which suppresses a deflection of the slide door by pressing the slide door; and a vibration suppressing portion which suppresses the amplitude of a vibration of the slide door generated when the slide door is exposed to the air stream.
    Type: Application
    Filed: February 14, 2011
    Publication date: August 18, 2011
    Applicant: KEIHIN CORPORATION
    Inventor: Naoki HIGA