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  Compact vehicle radiatorRelated Patent Categories: Heat Exchange, Radiator Core TypeThe Patent Description & Claims data below is from USPTO Patent Application 20060237176. Brief Patent Description - Full Patent Description - Patent Application Claims
[0001] The invention relates to a radiator for heating the passenger compartment of a vehicle comprising at least a first fluid box extending from a first front surface to a second front surface of the radiator along a longitudinal axis contained in a median plane of the radiator, a heat exchanger bundle extending approximately along said median plane starting from the fluid box to exchange heat between a coolant circulating in the fluid box and an airflow passing through the bundle, a fluid inlet or outlet tubing projecting from the end of the fluid box located in said first front surface. [0002] In this description, the terms "fluid box" and "tubing" refer to functional and non-structural units, with the fluid box denoting an element in which the fluid communicates directly with the bundle, and tubing denoting a pipe that connects the fluid box to components of the fluid circuit other than the radiator. As will be seen later, at least one region of the tubing may be fixed to the fluid box and may be formed by the same part or the same parts as the fluid box. [0003] In the well-known radiator type described above, the presence of the tubing projecting from the end of the fluid box contributes to the bulk of the radiator in the direction of the longitudinal axis thereof. But the space available for the radiator in the vehicle is usually very limited, particularly near the lower part of the radiator when it is close to the feet of the vehicle's occupants. [0004] The presence of the tubing also makes it difficult to achieve airtightness between the front surface of the radiator and the box of the heating unit in which it is housed. This airtightness makes it necessary to insert an expensive foam gasket that is difficult to put into place and that could also be displaced as the radiator is being inserted into the box, thus weakening the sealing function. Furthermore, this function is weakened as the gasket ages over time. [0005] The purpose of this invention is to eliminate all or some of the disadvantages mentioned above. [0006] In particular, the aim of the invention is to provide a radiator of the type defined in the introduction, in which said tubing, starting from the first front surface, has a first part inclined from said longitudinal axis and/or eccentric from said median plane. [0007] The inclination of said first part of the tubing makes it possible to reduce its bulk in the longitudinal direction of the fluid box, for a given length of the tubing, for example as far as an elbow. The eccentricity makes it possible for the first part of the tubing to be offset towards a first side of said median plane so as to leave an approximately planar surface on the other side of this median plane in the first front surface to achieve airtight contact between the radiator and the heating unit box, particularly with a removable cover belonging to this box, with or without insertion of a gasket. [0008] Optional additional or replacement characteristics of the invention are described below: [0009] Said first part of the tubing is offset towards a first side of said median plane so as to leave a planar surface in the first front surface on the other side of the median plane, to achieve airtight contact between the radiator and a heating unit box containing the radiator. [0010] Said first part of the tubing is inclined with respect to said median plane. [0011] Said first part of the tubing is inclined towards said first side of said median plane. [0012] Said first part of the tubing is inclined with respect to the plane containing the longitudinal axis of the fluid box and is orthogonal to said median plane. [0013] Said first part of the tubing is connected by an elbow to a second part that is located on the same side as the fluid box with respect to a boundary plane perpendicular to said longitudinal axis and the tangent to said elbow. [0014] Said second part extends approximately perpendicular to said longitudinal axis and is also tangential to said boundary plane. [0015] Said second part separates from said boundary plane starting from said elbow. The following relations are respected: cos .beta..times.sin .alpha..ltoreq.(Xmax/L) cos .beta..times.cos .alpha..ltoreq.(Ymax/L) 0.ltoreq..alpha..ltoreq.2.pi.-n/2.ltoreq..beta..ltoreq..pi./2 [0016] where L is the length of the vector connecting the intersection points of the median axis of the first part of the tubing with the first front surface and with the median axis of the second part, .alpha. is the angle formed by said vector with said median plane, .beta. is the angle formed by said vector with the plane containing the longitudinal axis of the fluid box and is orthogonal to said median plane, Ymax is the maximum distance available in the vehicle to house the tubing starting from the first front surface in the direction of the longitudinal axis of the fluid box and Xmax is the maximum distance available in the vehicle to house the tubing starting from the origin of said vector in the direction perpendicular to said median plane, [0017] .alpha. and .beta. are not both zero. [0018] The fluid box and at least one segment of the tubing adjacent thereto are formed by the inseparable assembly of at least two parts. [0019] The fluid box and said segment are formed by the assembly of two parts, each of which defines approximately half of the box and half of said segment. [0020] The fluid box and said segment are formed by the assembly of two parts, one of which approximately defines a longitudinal wall of the box and the other defines the rest of the box and said segment. [0021] The fluid box and said segment are formed by the assembly of three parts, two of which approximately define half of the box and the third defines said segment. [0022] Said parts are based on aluminium. [0023] A second fluid box extends along a longitudinal axis contained in said median plane, with the heat exchanger bundle being inserted between the two fluid boxes, one of which is associated with a fluid inlet tubing and the other with a fluid outlet tubing, and the tubing associated with the second fluid box is also as defined above. Continue reading... Full patent description for Compact vehicle radiator Brief Patent Description - Full Patent Description - Patent Application Claims Click on the above for other options relating to this Compact vehicle radiator patent application. ###  How KEYWORD MONITOR works... a FREE service from FreshPatents1. Sign up (takes 30 seconds). 2. Fill in the keywords to be monitored. 3. Each week you receive an email with patent applications related to your keywords. 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