Refrigeration – Refrigeration producer – Compressor-condenser-evaporator circuit
Reexamination Certificate
1999-12-15
2001-04-03
McDermott, Corrine (Department: 3744)
Refrigeration
Refrigeration producer
Compressor-condenser-evaporator circuit
C165S110000, C165S132000
Reexamination Certificate
active
06209349
ABSTRACT:
BACKGROUND OF THE INVENTION
The invention relates to a condenser capable of forming part of a fluid circuit, in particular for refrigerating fluid, in an air conditioning device of the passenger compartment of a motor vehicle. The condenser comprises a manifold box and an elongated intermediate reservoir for the treatment and/or the accumulation of the fluid, two communicating pipes being provided for the transfer of liquid between the manifold box with and the reservoir.
In such a condenser, as is well known, the intermediate reservoir may perform all or part of the following functions: filtration and/or dehydration of the refrigerating fluid, compensation of the variations in volume of the fluid, separation of the liquid and gaseous phases. Its intermediate position, i.e. its interposition between an upstream section and a downstream section of the condenser, allows only fluid in the liquid state to be circulated in the section upstream from the reservoir. The fluid is thus undercooled to the liquid/gas equilibrium temperature, improving the performances of the condenser and making the condenser relatively independent of the quantity of fluid contained in the circuit.
EP-A-0 480 330 describes, in a vehicle air-conditioning condenser, an intermediate circuit which is removably fixed to a base integral with the manifold box, through which the two communicating pipes pass.
The object of the invention is to simplify the mounting of the condenser, by making the base at least play a supplementary role with respect to the fluid and mechanical communications.
BRIEF SUMMARY OF THE INVENTION
The invention in particular relates to a condenser of the type defined in the background, and specifies that the base comprises means for fixing the condenser and/or for establishing a fluidic communication between said condenser and the remainder of the circuit.
Complementary or alternative optional characteristics of the invention are given below:
The means for establishing fluidic communication comprise a connecting pipe passing right through the base.
The connecting pipe communicates directly by a first of its ends with the manifold box.
The second end of the connecting pipe forms the outlet of the condenser.
The first end of the connecting pipe is substantially aligned with the respective ends of the communicating pipes which communicate with the manifold box, in the longitudinal direction of the latter.
The communicating pipe communicates with the manifold box in the vicinity of the lower end thereof.
The means for fixing the condenser comprise a mounting pin suitable for being inserted into a connected cavity to contribute to the attachment of the condenser to a support.
The mounting pin is turned away from the reservoir in relation to the base.
The mounting pin is turned towards the bottom of the condenser.
The mounting pin is disposed substantially along an axis parallel to that of the reservoir.
The condenser comprises a bank of tubes that are parallel to one another and perpendicular to the longitudinal direction of the manifold box, each of which communicates with the manifold box at one of its ends, the bank of tubes bearing a second mounting pin offset in relation to that of the base in the longitudinal direction of the tubes.
The reservoir is equipped in the vicinity of a first of its ends with an axial thread which cooperates for attachment with the base, the communicating pipes extending therein until opposite the first end.
The reservoir has an axial pipe fitting for the passage of fluid which projects at its first end in order to be connected in the interior of the base to one of the communicating pipes.
The reservoir has at its first end apertures for the passage of fluid surrounding the axial pipe fitting and communication with the second of the said communicating pipes.
The first pipe extends substantially perpendicularly to the longitudinal direction of the reservoir.
The second pipe is oblique in relation to the longitudinal direction of the reservoir, and deviates from the first pipe in the direction of the manifold box.
The first and the second pipes are disposed respectively downstream and upstream from the reservoir.
The base is soldered onto the outer face of a tubular wall delimiting the manifold box.
The communicating pipes extend substantially tangentially in relation to the said tubular wall and open laterally through said wall.
REFERENCES:
patent: 3051450 (1962-08-01), White et al.
patent: 5159821 (1992-11-01), Nakamura
patent: 5505253 (1996-04-01), Heraud
patent: 5546761 (1996-08-01), Matsuo et al.
patent: 5709106 (1998-01-01), Inaba et al.
patent: 5868002 (1999-02-01), Matsubayashi
patent: 5884503 (1999-03-01), Inaba
patent: 6038884 (2000-03-01), Dabrowski
patent: 0 480 330 (1992-04-01), None
patent: 0 769 666 (1997-04-01), None
patent: 0 838 642 (1998-04-01), None
patent: 9 26282 (1997-01-01), None
patent: 9 184668 (1997-07-01), None
Gille Gerard
Hu Zaiqian
McDermott Corrine
Morgan & Finnegan , LLP
Norman Marc
Valeo Thermique Moteur
LandOfFree
Air conditioning condenser comprising a reservoir mounted on... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Air conditioning condenser comprising a reservoir mounted on..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Air conditioning condenser comprising a reservoir mounted on... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2490325