Patents by Inventor Nobuya Nakagawa

Nobuya Nakagawa has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 6925825
    Abstract: A vehicle air-conditioning system has an evaporator for receiving air discharged into a casing of the system and changing the air to a cold air flow that can flow rearward, and a heater for selectively receiving at least a portion of the cold air flow and heating such portion to a warm air flow. The system includes partition means for directing the warm air flow to permit mixing of the warm air flow and the remaining cold air flow that bypasses the heater. The partition means includes a top end portion and guide means for downwardly directing the cold, warm, or the mixed cold and warm air which has flowed beyond the top end portion for blowing-out such air out of the system. The top end portion defines a surface having a streamlined or curved configuration along which the cold, warm, or mixed cold and warm air can flow.
    Type: Grant
    Filed: April 9, 2003
    Date of Patent: August 9, 2005
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Nobuya Nakagawa, Hajime Izumi, Tetsuo Tominaga, Toshihisa Kondo
  • Publication number: 20040154789
    Abstract: An air conditioning system mountable in the rear of a vehicle having a vent mode and a foot mode is disclosed. The air conditioning system comprises a casing, an evaporator mounted at an upper front portion within the casing, a heater core mounted below the evaporator such that the evaporator and the heater core are not superposed when seen in a vehicle front-to-rear direction. A temperature controlling damper is provided for controlling rate of air which is directed toward the heater core so as to attain a selected final temperature of the air which is discharged into a passenger compartment of the vehicle. Vent and foot outlets are also provided.
    Type: Application
    Filed: February 9, 2004
    Publication date: August 12, 2004
    Applicant: MITSUBISHI HEAVY INDUSTRIES LTD.
    Inventors: Nobuya Nakagawa, Toshihisa Kondo, Kazuo Ishii, Masashi Fujita
  • Patent number: 6772982
    Abstract: A mounting structure of the present invention for connecting a first member and a second member to each other comprises first bracket means attached to said first and second members and fastened together by means of a bolt and nut. The mounting structure further comprises second bracket means attached to said first and second members below said first bracket means. The second bracket means includes a first abutment member attached to one of said first and second members and having a vertical wall portion. The second bracket means further includes a second abutment member attached to the other of said first and second members and having first and second abutment portions vertically and horizontally spaced from each other.
    Type: Grant
    Filed: September 24, 2002
    Date of Patent: August 10, 2004
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Nobuya Nakagawa, Yoshihiro Hashizume, Fumikazu Muramatsu
  • Patent number: 6773340
    Abstract: A vehicle air-conditioning duct 1 has an oblong cross-sectional configuration. The air-conditioning duct 1 has a top wall 16, a bottom wall 18 and side walls 12, 14 enclosing an interior space and at least one constriction 22, 24 formed by a projection protruding from at least one of the top wall 16 and the bottom wall 18 into the air-conditioning duct 1 so as to connect the top wall 16 with the bottom wall 18. The constriction 22, 24 continuously extends in an air flow direction so that cross-sectional areas of the constriction 22, 24 are constant in the air flow direction.
    Type: Grant
    Filed: March 6, 2003
    Date of Patent: August 10, 2004
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Nobuya Nakagawa, Hajime Izumi, Tetsuo Tominaga, Toshihisa Kondo
  • Patent number: 6739388
    Abstract: An air conditioning system mountable in the rear of a vehicle having a vent mode and a foot mode is disclosed. The air conditioning system comprises a casing, an evaporator mounted at an upper front portion within the casing, a heater core mounted below the evaporator such that the evaporator and the heater core are not superposed when seen in a vehicle front-to-rear direction. A temperature controlling damper is provided for controlling rate of air which is directed toward the heater core so as to attain a selected final temperature of the air which is discharged into a passenger compartment of the vehicle. Vent and foot outlets are also provided.
    Type: Grant
    Filed: July 19, 2002
    Date of Patent: May 25, 2004
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Nobuya Nakagawa, Toshihisa Kondo, Kazuo Ishii, Masashi Fujita
  • Publication number: 20040093883
    Abstract: An air-conditioning apparatus 1 for a vehicle according to the present invention comprises an air supply duct 6 for supplying air and a vent 40 communicating with the air supply duct 6 for blowing the air into a compartment of the vehicle. The direction of the air blown from the vent 40 is adjustable. The air supply duct 6 includes a branch chamber 14, 16 for reducing flow speed of the air flowing through the air supply duct 6 so that the speed-reduced air in the branch chamber 14, 16 is blown from the vent 40.
    Type: Application
    Filed: March 4, 2003
    Publication date: May 20, 2004
    Inventors: Nobuya Nakagawa, Tetsuo Tominaga, Hajime Izumi, Toshihisa Kondo
  • Publication number: 20040016250
    Abstract: A vehicle air-conditioning system (1) according to the present invention has an evaporator (4), a heater core (6), a temperature controlling damper (20) for controlling the amounts of air passed and not passed through the heater core, a plurality of discharge outlets (22, 24, 26), a mode setting means (36) for manually selecting and setting a specific mode, a mode setting means (36) for manually setting a desired temperature, and a characteristic setting means for previously setting a predetermined relationship (shown by a line A in FIG. 4) between the temperature setting means and the damper opening of the temperature controlling damper by using a program such that the relationship between the temperature set by the temperature setting means and the air temperature at the discharge outlets has a predetermined characteristic (shown by a line C in FIG. 4), in the specific mode set by said mode setting means.
    Type: Application
    Filed: April 9, 2003
    Publication date: January 29, 2004
    Inventors: Nobuya Nakagawa, Toshihisa Kondo, Kazuo Ishii, Tuyoshi Ohminami
  • Publication number: 20030213579
    Abstract: An vehicle air-conditioning system (1) according to the present invention has an evaporator (4) for receiving an air being discharged into a casing (2) of the system by a blower and changing it to a cold air flow, the cold air flow being allowed to flow rearward, and a heater (6) located downstream of the evaporator (4) for selectively receiving at least a portion of the cold air flow and heating it to a warm air flow. The air conditioning system (1) also has partition means (8) disposed downstream of the heater (6) for directing the warm air flow upwardly in such a manner as to permit mixing of the warm air flow through the heater (6) and the remaining cold air flow bypassing the heater (6) thereabove, the partition means (8) including a top end portion (10), and guide means (11) for downwardly directing the cold air, the warm air or the mixture of cold and warm airs which has flowed beyond the top end portion (11) of said partition means (8) for blowing-out.
    Type: Application
    Filed: April 9, 2003
    Publication date: November 20, 2003
    Inventors: Nobuya Nakagawa, Hajime Izumi, Tetsuo Tominaga, Toshihisa Kondo
  • Publication number: 20030176159
    Abstract: A vehicle air-conditioning duct 1 according to the present invention has an oblong cross-sectional configuration. The air-conditioning duct 1 comprises a top wall 16, a bottom wall 18 and side walls 12, 14 enclosing an interior space and at least one constriction 22, 24 formed by a projection protruding from at least one of the top wall 16 and the bottom wall 18 into the air-conditioning duct 1 so as to connect the top wall 16 with the bottom wall 18. The constriction 22, 24 continuously extends in an air flow direction so that cross-sectional areas of the constriction 22, 24 are constant in the air flow direction.
    Type: Application
    Filed: March 6, 2003
    Publication date: September 18, 2003
    Inventors: Nobuya Nakagawa, Hajime Izumi, Tetsuo Tominaga, Toshihisa Kondo
  • Patent number: 6588496
    Abstract: An air conditioner for a vehicle comprises an air conditioner housing and an air intake formed in the air conditioner housing. An evaporator is disposed downstream of the air intake and an heater core is disposed downstream of the evaporator. Vent and foot outlets are formed in the housing downstream of the evaporator. The air conditioner further includes a first passage defined between the evaporator and the heater core and a guide plate disposed downstream of the heater core for directing hot air heated by passing through the heater core toward cool air not passing through the heater core.
    Type: Grant
    Filed: June 18, 2002
    Date of Patent: July 8, 2003
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Nobuya Nakagawa, Hajime Izumi, Tetsuo Tominaga, Toshihisa Kondo
  • Patent number: 6568200
    Abstract: An air conditioning system for a vehicle is disclosed. The air conditioning system includes a casing, an evaporator, a heater core at a rear side of the evaporator, and a mixing area for mixing a first air bypassing the heater core with a second air flowing through the heater core. The system further includes a partition plate for guiding the second air to the mixing area after the second air flows through the heater core, a foot passage, a defrosting passage, a vent outlet, and a defrosting outlet. The system still further includes a temperature controlling damper for controlling rates of the first air and the second air after the first and second airs flows through the evaporator so as to attain a predetermined final temperature of the air which is discharged into a passenger compartment of the vehicle. The system further includes a vent damper, a foot damper and a defrosting damper.
    Type: Grant
    Filed: July 24, 2002
    Date of Patent: May 27, 2003
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Nobuya Nakagawa, Hajime Izumi, Tetsuo Tominaga, Toshihisa Kondo, Kazuo Ishii, Masanobu Futatsuki
  • Publication number: 20030062456
    Abstract: A mounting structure of the present invention for connecting a first member and a second member to each other comprises first bracket means attached to said first and second members and fastened together by means of a bolt and nut. The mounting structure further comprises second bracket means attached to said first and second members below said first bracket means. The second bracket means includes a first abutment member attached to one of said first and second members and having a vertical wall portion. The second bracket means further includes a second abutment member attached to the other of said first and second members and having first and second abutment portions vertically and horizontally spaced from each other.
    Type: Application
    Filed: September 24, 2002
    Publication date: April 3, 2003
    Inventors: Nobuya Nakagawa, Yoshihiro Hashizume, Fumikazu Muramatsu
  • Publication number: 20030019619
    Abstract: An air conditioning system mountable in the rear of a vehicle having a vent mode and a foot mode is disclosed. The air conditioning system comprises a casing, an evaporator mounted at an upper front portion within the casing, a heater core mounted below the evaporator such that the evaporator and the heater core are not superposed when seen in a vehicle front-to-rear direction. A temperature controlling damper is provided for controlling rate of air which is directed toward the heater core so as to attain a selected final temperature of the air which is discharged into a passenger compartment of the vehicle. Vent and foot outlets are also provided.
    Type: Application
    Filed: July 19, 2002
    Publication date: January 30, 2003
    Applicant: MITSUBISHI HEAVY INDUSTRIES LTD.
    Inventors: Nobuya Nakagawa, Toshihisa Kondo, Kazuo Ishii, Masashi Fujita
  • Publication number: 20030019233
    Abstract: An air conditioning system for a vehicle is disclosed. The air conditioning system includes a casing, an evaporator, a heater core at a rear side of the evaporator, and a mixing area for mixing a first air bypassing the heater core with a second air flowing through the heater core. The system further includes a partition plate for guiding the second air to the mixing area after the second air flows through the heater core, a foot passage, a defrosting passage, a vent outlet, and a defrosting outlet. The system still further includes a temperature controlling damper for controlling rates of the first air and the second air after the first and second airs flows through the evaporator so as to attain a predetermined final temperature of the air which is discharged into a passenger compartment of the vehicle. The system further includes a vent damper, a foot damper and a defrosting damper.
    Type: Application
    Filed: July 24, 2002
    Publication date: January 30, 2003
    Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Nobuya Nakagawa, Hajime Izumi, Tetsuo Tominaga, Toshihisa Kondo, Kazuo Ishii, Masanobu Futatsuki
  • Publication number: 20030003859
    Abstract: An air conditioner for a vehicle comprises an air conditioner housing and an air intake formed in the air conditioner housing. An evaporator is disposed downstream of the air intake and an heater core is disposed downstream of the evaporator. Vent and foot outlets are formed in the housing downstream of the evaporator. The air conditioner further includes a first passage defined between the evaporator and the heater core and a guide plate disposed downstream of the heater core for directing hot air heated by passing through the heater core toward cool air not passing through the heater core.
    Type: Application
    Filed: June 18, 2002
    Publication date: January 2, 2003
    Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Nobuya Nakagawa, Hajime Izumi, Tetsuo Tominaga, Toshihisa Kondo