RU194291U1 - COVER OF THE DRIVE OF THE GAS DISTRIBUTION MECHANISM OF THE INTERNAL COMBUSTION ENGINE - Google Patents

Abstract

The timing cover of the gas distribution mechanism of an internal combustion engine relates to the automotive industry, in particular to the cover designs. For this, the outer side of the lid wall is made as a protruding single structural element consisting of an oil pump housing with spherical bosses located along its perimeter and an element for accommodating a pressure reducing valve, and to ensure the performance of the oil pump and the effectiveness of the lubrication system, two injection cavities and an opening for installing rotors of an oil pump with a diameter D having a dimensional limit of 85 mm ... 105 mm, as well as a connecting flange with holes for fastening elements for mounting the oil pump cover; at the same time, to ensure the operation of the ICE lubrication system in the lower side of the cover near the connecting flange to the cylinder block, a structural element is made for placing the oil supply channels to the cylinder block.

Description

The utility model relates to the field of mechanical engineering, namely to engine building, in particular to cover designs designed to isolate from the environment a gas distribution mechanism (hereinafter referred to as timing) of internal combustion engines (hereinafter ICE).

A known design of the casing of the drive device of the internal combustion engine, comprising front and rear walls interconnected with the cylinder block, comprising grooves in the rear cover formed, for example, by deformation of the cover. The wedge-shaped protrusions of the front cover have lateral slopes of the surface relative to the vertical axis of the cover. The front cover is mounted with the possibility of sliding its wedge-shaped protrusions in the grooves. The cover can be equipped with a reflective plate (see patent for invention RU No. 2027884, with publication date from 01/27/1995, IPC ⁶ F02B 67/06, F02B 77/14, F02F 7/00).

The disadvantages of this analogue include the fact that the casing of the drive device is a complex prefabricated multi-element design, the manufacture of which requires the use of expensive technological equipment, the high complexity of assembly and maintenance of the engine.

The closest design for the same purpose to the claimed utility model in terms of features is the design of the drive cover of the gas distribution mechanism of the internal combustion engine, comprising a housing made as a single structure, including structural elements for housing the water pump housing, hydraulic tensioner, synchronization sensor, and a protrusion element under the upper circuit timing drive, in the upper part of which there is a cylinder head flange with holes; between the connecting flanges of the cylinder head and oil sump, the distance L1 = 297 mm ... 301 mm; a hole with a diameter of D = 68 mm ... 72 mm was made for the gland at a distance of L2 = 58 mm ... 62 mm from the plane of the oil sump flange; an element for placing a water pump with a flange, holes for installing a water pump to the cylinder block, two discharge cavities, for supplying coolant two holes with a diameter of D1 = 22 mm ... 26 mm; for positioning on the cylinder block, two holes with a diameter of D2 = 11 mm ... 12 mm, with the axes of the first - at a distance of L3 = 203 mm ... 207 mm, and the second hole - at a distance of L4 = 63 mm ... 67 mm from the axis of the hole for installing the gland; an element for accommodating a hydraulic tensioner with a hole with a diameter of D3 = 20 mm ... 24 mm, with a flange and threaded holes for installing the hydraulic tensioner cover; The timing drive cover in two versions: with four bosses with threaded holes to accommodate the tension roller or with a flange having one threaded hole and a recess for installing the belt tension mechanism (see patent for utility model RU No. 137340, with the publication date of 10.02. 2014, IPC F02F 7/00, F01L 1/46 (2006.01).

The disadvantages of this analogue include insufficient functionality and sound absorption, greater material consumption and less rigidity and strength, as well as the complexity of the engine design.

The essence of the utility model is to develop a multifunctional design timing drive cover allowing it to be combined with an oil pump and to ensure that the following parts are installed on it: rotors, a pressure reducing valve, as well as an oil pump cover, while providing high durability and stiffness of the cover, and effective absorption of noise emission from working timing chains and minimum overall dimensions of the engine.

The technical result is a multifunctional design, increased strength and stiffness, with an effective indicator of noise absorption, which allows you to optimize the size of the engine and exclude a number of components from its composition.

The specified technical result in the implementation of the utility model is achieved by the fact that the cover of the gas distribution mechanism of the internal combustion engine, made by casting, consisting of a housing made as a single structure, with stiffeners located on it, including a wall, an opening for installing the crankshaft seal, connecting flanges to the cylinder block, cylinder head, oil crankcase and flange to accommodate the water pump housing with holes for fasteners, os The disadvantage is that to increase the strength and rigidity of the cover, functionality and effective absorption of noise from the timing drive, as well as to reduce the number of parts included in the internal combustion engine, the outer side of the cover wall is made as a protruding single structural element consisting of an oil pump housing , with spherical bosses and an element located around its perimeter to place a pressure reducing valve, moreover, to ensure the performance of the oil pump and the efficiency of the systems lubricants, two injection cavities and the opening for the installation of the oil pump rotor diameter D, having the size limit of 85 mm ... 105 mm, as well as a mounting flange with holes for fastening elements for mounting the oil pump cover are located on the inner side wall; at the same time, to ensure the operation of the ICE lubrication system in the lower lateral part of the cover, near the connecting flange to the cylinder block, a structural element is made for placing the oil supply channels to the cylinder block.

The following illustrations are provided to illustrate this utility model:

In FIG. 1 - shows a view of the outside of the timing cover;

In FIG. 2 - shows a view of the inner side of the timing cover.

The engine cover of the engine’s gas distribution mechanism contains: a molded case 1 with stiffeners 2 located on it, including a wall 3, an opening for installing the crankshaft oil seal 4, connecting flanges, respectively, to the cylinder head 6 and the oil casing 7, and holes 18, 19 for mounting elements, a flange for accommodating the body of the water pump 8 with holes for fasteners 9, on the outer side of the wall 3 of the cover is made protruding single structural element consisting of a body of the oil pump 10, with bosses of a spherical shape 11 and an element for accommodating a pressure reducing valve 12 laid on its perimeter, two injection cavities 13 and an opening for installing oil pump rotors 14 with a diameter D, a connecting flange 15 with holes for fasteners 16, a structural element for placing channels for supplying oil to the cylinder block 17.

The timing cover works as follows.

On the connecting flange to the cylinder block 5, the cover is attached to the cylinder block (not shown) through the holes for the fasteners 9; a cylinder head (not shown) is mounted on the connecting flange of the cylinder head 6 and, by means of threaded holes 18, is bolted (not shown) to the housing 1; an oil sump (not shown) is mounted on the connecting flange 7 and, by means of threaded holes 19, is bolted (not shown) on the housing 1. To seal the toe of the crankshaft into the hole for installing the crankshaft oil seal 4, a crankshaft oil seal (not shown) is installed on wall 3 . To ensure the operation of the internal combustion engine lubrication system, wall 3 consists of an oil pump housing 10, with spherical bosses 11 located along its perimeter, in which threaded holes for fasteners 16 for attaching the oil pump cover (not shown) are located.

On the inner side of the housing of the oil pump 10, oil pump rotors (not shown) are installed in the hole 14, which supply oil through two injection cavities 13 to a pressure reducing valve placed in the element for accommodating the pressure reducing valve 12, and through the oil supply channels located in the structural element 17 into a cylinder block (not shown). An oil pump cover (not shown) is mounted on the connecting flange 15 and, by means of screw holes for fasteners 16, are fastened with screws (not shown) to the oil pump housing 10.

The advantage of the claimed utility model is that, compared with the designs adopted for the analogue, the execution of the engine cover of the gas distribution mechanism of the internal combustion engine, as described above using the entire proposed set of essential features, makes it possible to obtain a timing cover of a multifunctional design with increased strength and stiffness, with increased noise absorption indicators, optimized engine dimensions and design combined with an oil pump.

Claims (4)

1. The cover of the drive of the gas distribution mechanism of the internal combustion engine, made by casting, consisting of a housing made as a single structure, with stiffeners located on it, including a wall, an opening for installing the crankshaft seal, connecting flanges to the cylinder block, cylinder head, oil the crankcase and flange for accommodating the water pump housing with holes for fasteners, characterized in that the outer side of the cover wall is made as a protruding single tive element consisting of the oil pump housing and an element for placing the relief valve; while on the inner side of the wall there are two discharge cavities, an opening for installing rotors of an oil pump with a diameter of D and a connecting flange with holes for fasteners. 2. The timing cover of the gas distribution mechanism according to claim 1, characterized in that in the lower side of the cover, near the connecting flange to the cylinder block, a structural element is made for accommodating oil supply channels to the cylinder block. 3. The drive cover of the gas distribution mechanism according to claim 1, characterized in that the hole for installing the rotors of the oil pump with a diameter of D has a size limit of 85 mm to 105 mm. 4. The drive cover of the gas distribution mechanism according to claim 1, characterized in that on the outside of the cover there are spherical bosses around the perimeter, repeating the shape of the oil pump housing.

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