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DE-112014005016-B4 - radiator grille

DE112014005016B4DE 112014005016 B4DE112014005016 B4DE 112014005016B4DE-112014005016-B4

Abstract

Self-cleaning radiator grille assembly (100) comprising: a cooling housing (102) with a frame (104) that can be operated in an open and/or closed position; and several waste filter units (108) forming a grill plate (106) which is held by the frame (104), each of the several Waste filter units (108) comprise at least one pair of filter lines (108-A), wherein several corrugated plates (108-B) are placed between each of the filter lines (108-A), the corrugated plates (108-B) being placed parallel to each other such that they form an inclination (108-D) so that cavities between the corrugated plates (108-B) form air passages (108-C) which open in an inclination (108-D); wherein an ambient air (M) moving in a general suction direction enters the air passages (108-C) through the cavities, thereby facilitating the removal of obstructing substances and enabling self-cleaning.

Inventors

  • Avinash Atmaram Prabhudesai

Assignees

  • K J SOMAIYA COLLEGE OF ENGINEERING

Dates

Publication Date
20260513
Application Date
20141031
Priority Date
20131101

Claims (12)

  1. A self-cleaning radiator grille assembly (100) comprising: a radiator housing (102) with a frame (104) that can be operated in an open and/or closed position; and multiple waste filter units (108) forming a grill plate (106) held by the frame (104), each of the multiple waste filter units (108) comprising at least one pair of filter lines (108-A), with multiple corrugated plates (108-B) positioned between each of the filter lines (108-A), the corrugated plates (108-B) being positioned parallel to one another such that they form an inclination (108-D), so that cavities between the corrugated plates (108-B) form air passages (108-C) that open in an inclination (108-D); wherein an ambient air (M) moving in a general suction direction enters the air passages (108-C) through the cavities, thereby facilitating the removal of obstructing substances and enabling self-cleaning.
  2. Radiator grille arrangement (100) according Claim 1 , wherein the corrugated plates (108-B) are placed on top of each other.
  3. Radiator grille arrangement (100) according Claim 1 , wherein the corrugated plates (108-B) are parallel to the filter lines (108-A).
  4. Radiator grille arrangement (100) according Claim 1 , wherein the ambient air (M) entering the air passages (108-C) has a direction of movement parallel to an air passage axis (126).
  5. Radiator grille arrangement (100) according Claim 1 , whereby the inclination allows the clogging materials to be pushed towards an open waste passage (108-E) that is created between the filter lines (108-A) of each waste filter unit (108).
  6. Radiator grille arrangement (100) according Claim 1 , furthermore comprising joints (112) to facilitate pivoting the frame (104) into the open or closed position of the radiator housing (102).
  7. Radiator grille arrangement (100) according Claim 1 , wherein the frame (104) holds the grill plate (106) by means of flexible connections (114), thereby providing a support for the grill plate (106).
  8. Radiator grille arrangement (100) according to Claim 1 , wherein the entire perimeter of a space between the frame (104) and the grill plate (106) is enclosed by a flexible covering (116).
  9. Radiator grille arrangement (100) according Claim 8 , wherein the flexible cladding (116) completely covers the flexible connections (114) from the outside and the flexible cladding (116) together with the frame (104) and the grill plate (106) ensures a passage of air to the radiator housing (102) only through the waste filter units (108).
  10. Radiator grille arrangement (100) according Claim 1 , wherein at least one guide plate (110) covers the waste filter unit (108).
  11. Radiator grille arrangement (100) according Claim 10 , wherein the guide plate (110) is positioned between an upper holder (118) and a lower holder (120) such that held together such that each of the guide plates (110) converges over its corresponding waste filter unit (108) when the upper holder (118) and the lower holder (120) are attached to the grill plate (106).
  12. Radiator grille arrangement (100) according Claim 10 , wherein the upper holder (118) and the lower holder (120) are attached to the grill plate (106) by spacers (122) and bolts (124).

Description

TECHNICAL AREA The present invention relates generally to radiator grille arrangements. BACKGROUND OF THE INVENTION A radiator grille is used to protect the radiator of a vehicle from external substances such as dust, mud, debris, etc. A radiator grille generally consists of thin slots in a metal or plastic panel that acts as a barrier against foreign objects entering the radiator. Conventional radiator grilles incorporate a perforated handle. This handle facilitates the removal of accumulated dirt through gravity and vibration. However, the air entering the perforated grille is directed perpendicular to the grille surface, causing it to push the dirt against the surface and preventing it from moving parallel to the surface. This leads to clogging of the grille, requiring the user to clean the handle, resulting in frequent driving interruptions. Therefore, there is a need for a self-cleaning radiator grille design to avoid these interruptions. Radiator structures with a combined grill and moving screen are also known in the prior art. In such arrangements, the continuously moving endless screen filters out the contaminants. The screen itself is cleaned by a moving brush at its base. Such structures are usually self-cleaning but require additional drive and energy for the continuous movement of the screen and brush. Other arrangements used for the same purpose include either a radiator fan that reverses its direction of rotation at regular intervals or a radiator fan whose blades rotate around their own axes at regular intervals. In these two arrangements, the direction of airflow through the radiator grille is reversed at regular intervals to clean the grille. These two arrangements require a control system to periodically reverse the airflow, which makes them expensive. Furthermore, the cleaning is not continuous. Contaminants accumulate on the grille, blocking it and reducing the airflow to the radiator until the direction of the airflow is reversed. Furthermore, the fan blades undergo regular load reversal, and to avoid frequent breakage of a fan blade, these arrangements require more expensive fans. Out of US 2,542,238 A radiator grille arrangement is known which includes a perforated sheet for protection against the ingress of foreign objects carried by an intake airflow. The radiator grille arrangement does not include, at least, a radiator housing with a frame that can be operated in an open and/or closed position, nor does it include corrugated plates placed between pairs of filter lines. DE 43 15 163 A1 This describes an insect screen for heat exchangers in motor vehicles, comprising a grid element with numerous perforated openings. The grid element is corrugated to achieve a self-cleaning effect. DE 10 2013 216 222 A1 relates to a railway vehicle cooling arrangement comprising a cooler and a separator for separating liquid or solid contaminants from a cooling air stream. DE 24 50 093 A1 This concerns a heat exchanger for exchanging heat between a medium and the air. US 5 765 630 A This concerns a radiator block arrangement that includes angled fins that deflect air towards the fan blades. US 3 888 327 A This concerns a radiator guard device to protect a vehicle radiator from branches and other objects. US 1 571 354 A This concerns a radiator cover for vehicle radiators to protect them from leaves or dirt. Existing radiator grilles are either unsuitable for preventing clogging by fibers, dirt, leaves, etc., which form a fiber matrix across the radiator grille, or they prevent clogging but require additional drives, additional energy input, and are more expensive to manufacture and maintain. In light of this, there is a need for a radiator grille that overcomes the problems associated with the current state of technology. PRESENTATION OF THE INVENTION The present invention provides a self-cleaning radiator grille assembly comprising a radiator housing with a frame that can be operated in an open and/or closed position; and several waste filter units forming a grill plate held by the frame, each of the several waste filter units comprising at least one pair of filter lines, several corrugated plates positioned between each of the filter lines and parallel to each other such that cavities between the corrugated plates form air passages, and a surrounding Air entering the air passages facilitates the removal of blockages by pushing and tilting the substances downwards, thus enabling self-cleaning. In an advantageous aspect, the present invention offers a continuously self-cleaning radiator grille, thereby ensuring a continuous, unobstructed flow of air to the radiator. The self-cleaning property of the present invention is advantageous in avoiding frequent machine interruptions for cleaning the radiator grille. The radiator grille of the present invention can be used in a wide range of industrial applications such as automobiles, agricultural equipment, etc. The radiator grille of the present invention