CN211777742U

CN211777742U - Horizontal opposed double-cylinder gasoline engine timing cover cap

Info

Publication number: CN211777742U
Application number: CN202021269062.XU
Authority: CN
Inventors: 刘佳文; 许敏; 谭子瑶; 王森; 王燕
Original assignee: Hunan Minhang Automobile Technology Co ltd
Current assignee: Hunan Minhang Automobile Technology Co ltd
Priority date: 2020-07-02
Filing date: 2020-07-02
Publication date: 2020-10-27
Anticipated expiration: 2030-07-02

Abstract

The utility model relates to the technical field of automobile engine, a horizontal opposition double-cylinder gasoline engine shroud in right time is disclosed, including the shroud body in right time, integrate in the inside oil pump of shroud body in right time and be used for consolidating the shroud body in right time with the strengthening rib of oil pump, strengthening rib (7) are many to it arranges to become the network format inside shroud body in right time (1). The utility model discloses shroud self intensity in the assurance in right time reduces part quantity to and when NVH (Noise, Vibration, Harshness, Noise, Vibration and acoustic roughness) performance, arrange through making strengthening rib net formation form, increase the node number, with using more shorter strengthening ribs, and can further reduce the cross sectional dimension of strengthening rib, can satisfy the requirement of engine lightweight design.

Description

Horizontal opposed double-cylinder gasoline engine timing cover cap

Technical Field

The utility model relates to an automobile engine technical field especially relates to a horizontal opposition double-cylinder gasoline engine cover in right time lid.

Background

In recent years, regulations for automobile emission and fuel consumption at home and abroad are becoming stricter, and ecological civilization construction is gaining wide attention in the whole society. Under the background, electric vehicles are rapidly developed and favored by customers. However, because the driving mileage of the electric vehicle is low, in order to solve the problem, various manufacturers develop extended-range engines, and through extremely low fuel consumption, the batteries of the electric vehicle are charged in time, so that the driving mileage of the electric vehicle is greatly improved.

The horizontally-opposed two-cylinder engine belongs to a range-extended engine, and the timing cover is used as a part of the horizontally-opposed two-cylinder engine, so that the size of the front end of the whole engine is determined.

For example, chinese patent publication No. CN202732144U, published as 2013, 02, 13, discloses a timing cover for a supercharged engine, wherein the timing cover is an integral structure, a vertical reinforcing rib is disposed on an inner side surface of the timing cover, four sets of fork-shaped reinforcing ribs and upper and lower pairs of inner side oblique ribs are symmetrically disposed on two sides of the vertical reinforcing rib, and reinforcing rib bars at each symmetrical position are equal in length and thickness. The reinforcing ribs are not arranged in a grid form, the grid is arranged, the number of nodes is large, the grid size (node distance) is small, the cross section of a rod piece with a small specification can be adopted, and the requirement of lightweight design of an engine can be met.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a horizontal opposition double-cylinder gasoline engine shroud in right time can use many shorter strengthening ribs, further reduces the cross sectional dimension of strengthening rib, satisfies the requirement of engine lightweight design.

The timing cover for the gasoline engine with the horizontally-opposed double cylinders is used for solving the problems and comprises a timing cover body, an oil pump integrated in the timing cover body and reinforcing ribs for reinforcing the timing cover body and the oil pump, wherein a plurality of reinforcing ribs are arranged in the timing cover body in a grid-forming mode.

Because the reinforcing ribs are arranged in a net-forming mode, the length of each reinforcing rib can be reduced by increasing the number of nodes, the section size of each reinforcing rib can be further reduced, and the timing cover cap becomes lighter.

As a further improvement, the reinforcing rib has a plurality of one end rigid couplings at the inner edge of the timing cover body and the other end rigid coupling oil pump.

After the reinforcing ribs are arranged in a grid form, a plurality of nodes can exist, the nodes can be arranged on the side surface of the oil pump, and a plurality of nodes are uniformly distributed along the outer side surface of the oil pump at intervals, so that the oil pump can be reinforced, the node distribution can be combined with the internal components of the timing cover body, the grid design is more reasonable, and the internal components of the timing cover body are more compact in integration.

As the utility model discloses further improvement, on the shroud body in right time, be used for suspension bolt hole boss I of fixed cylinder to distribute in the both ends region of shroud body long side in right time or evagination bight region or indent bight region, suspension bolt hole boss I is a plurality of to become interval distribution.

Because suspension bolt hole boss I distributes on the long avris of timing cover body, be favorable to covering the long avris of timing cover body bolt rigid coupling on the cylinder, set up bolt hole boss I in the regional or evagination bight region of both ends of long avris or indent bight region, through using the bolt reinforcement key position, make the long avris of timing cover body and cylinder on corresponding position be connected more closely.

As a further improvement, the short side intermediate position of the timing cover body is along the region of the long side direction, and the interval distribution has a plurality of suspension bolt hole bosses II for fixing the cylinder.

Because the middle area of the timing cover body is provided with the suspension bolt hole boss II, the middle area of the timing cover body is convenient to fix on the cylinder by using bolts.

As a further improvement, the reinforcing rib has many one end rigid couplings at the inside edge of shroud body in right time, and other end rigid coupling suspension bolt hole boss II stretches into on stretching into the side of boss in the inside suspension installation of shroud body in right time.

Because the strengthening rib becomes behind the network form arrangement, can have a lot of nodes, its node can set up on the side of the boss is stretched in the suspension installation that suspension bolt hole boss II stretched into timing shroud body inside, and the boss is stretched in the suspension installation can provide the node, also makes things convenient for its self to consolidate.

As the utility model discloses further improvement, the oil pump includes oil pump oil feed oil duct, oil pump oil outlet oil duct and oil pump oil pocket, and oil pump oil feed oil duct intercommunication oil pump oil pocket, oil pump oil pocket intercommunication oil pump oil outlet oil duct, and the cover body middle zone has a protruding region in right time, and protruding region is used for settling the oil pump oil pocket in the inside middle zone's of cover body in right time position, and suspension bolt hole boss II distributes on protruding regional both sides.

The raised area is the mounting position of the oil cavity of the oil pump, so that the mounting of the oil pump is facilitated.

As a further improvement of the utility model, a pressure relief area is arranged in the oil inlet duct of the oil pump.

The oil pressure in the oil pump exceeds the rated pressure, and the safety of the oil pump can be ensured by pressure relief.

As a further improvement, a timing shroud body tip region is equipped with a lug mounting end face, lug mounting end face is less than the terminal surface before the timing shroud of timing shroud body, the lug mounting end face stretches into and stretches the boss side in the inside lug installation of timing shroud body and connect an at least strengthening rib, this strengthening rib can be located and stretch between boss and the inside edge of timing shroud body in the lug installation, stretch in perhaps the lug installation between the boss and the lug installation stretch a suspension bolt hole boss that the boss is closest to II.

The lug installation is stretched in the boss and can be regarded as the net node, also makes things convenient for its self to consolidate.

As the utility model discloses further improvement, the position that suspension bolt hole boss II and timing shroud body meet forms the indent structure around the bolt hole round jointly, can make the two connect more closely.

As a further improvement, the position that suspension bolt hole boss II meets with the timing shroud body forms the evagination structure around the bolt hole round jointly, and the evagination structure is adjacent to the indent structure to be located between indent structure and the bolt hole. The connection part of the suspension bolt hole boss II and the timing cover body forms an outward convex structure together, and the connection of the suspension bolt hole boss II and the timing cover body is further reinforced.

The utility model discloses shroud self intensity in the assurance in right time reduces part quantity to and when NVH (Noise, Vibration, Harshness, Noise, Vibration and acoustic roughness) performance, arrange through making strengthening rib net formation form, increase the node number, with using more shorter strengthening ribs, and can further reduce the cross sectional dimension of strengthening rib, can satisfy the requirement of engine lightweight design.

Drawings

Fig. 1 is a perspective view of the timing cover of the present invention.

Fig. 2 is a top view of the timing cover of the present invention.

Fig. 3 is a rear view of the timing cover of the present invention.

Fig. 4 is the utility model discloses timing shroud suspension bolt hole boss cross-sectional view.

Reference numerals: 1. a timing cover body; 2. suspending a bolt hole boss I; 3. a boss II of the suspension bolt hole; 4. a lifting lug mounting end face; 5. a raised region; 6. the front end surface of the timing cover; 7. reinforcing ribs; 8. an engine oil pump oil cavity; 9. the lifting lug is provided with an inward extending boss; 10. an oil inlet duct of the oil pump; 11. an oil outlet duct of the oil pump; 12. an inward extending boss is installed in a suspension mode; 13. a concave structure; 14. a convex structure.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1-4, a horizontal opposed double-cylinder gasoline engine timing cover comprises a timing cover body 1, an oil pump integrated in the timing cover body 1, and reinforcing ribs 7 for reinforcing the timing cover body 1 and the oil pump, wherein the reinforcing ribs 7 are multiple and are arranged in a grid form in the timing cover body 1, and the reinforcing ribs 7 are irregular quadrangle or crisscross or approximately triangular.

Due to the grid-shaped arrangement of the reinforcing ribs 7, the length of each reinforcing rib 7 can be reduced by increasing the number of nodes, the section size of each reinforcing rib 7 can be further reduced, and the timing cover is lighter.

The reinforcing ribs 7 are provided with a plurality of nodes, one end of each node is fixedly connected with the inner edge of the timing cover body 1, the other end of each node is fixedly connected with the oil pump, a plurality of nodes can be uniformly arranged at intervals along the periphery of the oil pump, as shown in figure 3, the number of the nodes is 5, the nodes are respectively connected with 5 reinforcing ribs, one reinforcing rib is connected with the top of the oil pump, and two sides of the oil pump are respectively connected with 2.

After the reinforcing ribs 7 are arranged in a grid form, a plurality of nodes can exist, the nodes can be arranged on the side surface of the oil pump, and a plurality of nodes are uniformly distributed along the outer side surface of the oil pump at intervals, so that the oil pump can be reinforced, the node distribution can be combined with internal components of the timing cover body, the grid design is more reasonable, and the internal components of the timing cover body 1 are integrated more compactly.

On the timing shroud body 1, be used for the suspension bolt hole boss I2 distribution of fixed cylinder in the both ends region of 1 long avris of timing shroud body, evagination bight region and indent bight region, suspension bolt hole boss I2 is 4 to become interval distribution.

Because suspension bolt hole boss I2 distributes on 1 long avris of shroud body in right time, be favorable to shroud body in right time 1 long avris bolt rigid coupling on the cylinder, set up bolt hole boss I in the regional, the outer corner region of both ends on long avris, the regional bolt hole boss I that sets up of indent bight, through using the bolt reinforcement key position, make 1 long avris of shroud body in right time and be connected more closely with the corresponding position on the cylinder.

The middle position of the short side of the timing cover body 1 is provided with 4 suspension bolt hole bosses II 3 for fixing the cylinder at intervals in the area along the long side direction.

Because the middle area of the timing cover body 1 is provided with the suspension bolt hole boss II 3, the middle area of the timing cover body 1 is convenient to be fixed on the cylinder by using bolts. And four suspension bolt holes II 3 and sealed fastening bolt sharing bolt installation hole site have reduced the part number, are favorable to realizing lightweight design.

The periphery of four mounting holes of the upper mounting holes of the mounting hole bosses of the suspension bolts arranged at the front end of the timing cover is inwards concave by 4mm, and the plane of the mounting boss is inwards concave by 2 mm.

The reinforcing ribs 7 are provided with a plurality of ends which are fixedly connected with the inner edge of the timing cover body 1, and the other ends are fixedly connected with the side surfaces of the bosses 12 which are arranged in the suspension installation and extend into the timing cover body 1 through the bosses II 3 of the suspension bolt holes. The suspension mounting inwardly extending bosses 12 may serve as connection nodes for the reinforcing bars 7.

The oil pump comprises an oil pump oil inlet duct 10, an oil pump oil outlet duct 11 and an oil pump oil cavity 8, wherein the oil pump oil inlet duct 10 is communicated with the oil pump oil cavity 8, the oil pump oil cavity 8 is communicated with the oil pump oil outlet duct 11, a protruding area 5 is arranged in the middle area of the timing cover body 1, the protruding area 5 protrudes by 4.5mm compared with the front end face 6 of the timing cover, the integral wall thickness of the oil pump area is guaranteed to be consistent, the protruding area 5 is used for accommodating the oil pump oil cavity 8 in the middle area of the inside of the timing cover body 1, and the suspension bolt hole bosses II 3 are distributed on two sides. The raised area 5 is an oil pump oil cavity mounting position, so that the mounting of the oil pump is facilitated.

A pressure relief area is arranged in the oil inlet duct 10 of the oil pump. The oil pressure in the oil pump exceeds the rated pressure, and the safety of the oil pump can be ensured by pressure relief.

A lug mounting end face 4 is arranged in an end portion area of the timing cover body 1, the lug mounting end face 4 is lower than a timing cover front end face 6 of the timing cover body 1, the lug mounting end face 4 is concave 4mm when the timing cover front end face 6 is corrected, the lug mounting end face 4 is sunken, and the space at the position can be reasonably utilized.

The side face of a lug mounting inward extending boss 9 extending into the timing cover body 1 from the lug mounting end face 4 is connected with 2 reinforcing ribs 7, one reinforcing rib 7 is located between the lug mounting inward extending boss 9 and the inner edge of the timing cover body 1, and the other reinforcing rib is located between the lug mounting inward extending boss 9 and a suspension bolt hole boss II 3 closest to the lug mounting inward extending boss 9. The lug installation inwardly extending boss 9 can be used as a grid node, and is convenient for self reinforcement.

The part that suspension bolt hole boss II 3 and timing shroud body 1 meet forms the indent structure 13 around the bolt hole round jointly, can make the two connect more closely.

The part that suspension bolt hole boss II 3 meets with timing shroud body 1 forms outward protruding structure 14 around the bolt hole of a circle jointly, and outward protruding structure 14 is adjacent to indent structure 13 to be located between indent structure 13 and the bolt hole, can further strengthen the connection of the two. The convex structure 14 and the concave structure 13 are in adjacent annular shapes and surround the bolt hole for reinforcing the suspension bolt hole boss II 3 and the timing cover body 1.

The foregoing is a more detailed description of the present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments shown and described. To the technical field of the utility model belongs to the prerequisite without departing from the utility model discloses the utility model, can also make a plurality of equal substitution or obvious variant, and performance or usage are the same moreover, all should regard as belonging to within the scope of protection of the utility model.

Claims

1. A horizontal opposite double-cylinder gasoline engine timing cover comprises a timing cover body (1), an oil pump integrated in the timing cover body (1) and reinforcing ribs (7) used for reinforcing the timing cover body (1) and the oil pump, and is characterized in that the reinforcing ribs (7) are multiple and are arranged in a grid form in the timing cover body (1).

2. The timing cover cap of the gasoline engine with two horizontally and oppositely arranged cylinders as claimed in claim 1, wherein the reinforcing ribs (7) have a plurality of ends fixedly connected to the inner edge of the timing cover cap body (1) and the other ends fixedly connected with the oil pump.

3. The timing cover for a horizontal opposed double cylinder gasoline engine as defined in claim 1, wherein the timing cover body (1) has a plurality of suspension bolt hole bosses I (2) for fixing the cylinder distributed at both end regions or outer corner regions or inner corner regions on the long side of the timing cover body (1), and the suspension bolt hole bosses I (2) are distributed at intervals.

4. The timing cover for the gasoline engine with the horizontally and oppositely arranged double cylinders as claimed in claim 1, is characterized in that a plurality of suspension bolt hole bosses II (3) for fixing the cylinders are distributed at intervals on the middle position of the short side of the timing cover body (1) along the area of the long side direction.

5. The timing cover cap for the gasoline engine with two horizontally-opposed cylinders as claimed in claim 4, wherein the reinforcing ribs (7) have a plurality of ends fixedly connected to the inner edge of the timing cover cap body (1), and the other ends fixedly connected to the side surfaces of the bosses (12) extending into the timing cover cap body (1) and provided with the suspension mounting inner extending bosses (3).

6. The timing cover cap of the gasoline engine with the horizontally-arranged two cylinders as claimed in claim 4, wherein the oil pump comprises an oil pump oil inlet duct (10), an oil pump oil outlet duct (11) and an oil pump oil chamber (8), the oil pump oil inlet duct (10) is communicated with the oil pump oil chamber (8), the oil pump oil chamber (8) is communicated with the oil pump oil outlet duct (11), a raised area (5) is arranged in the middle area of the timing cover body (1), the raised area (5) is used for placing the oil pump oil chamber (8) in the middle area of the interior of the timing cover body (1), and the bosses II (3) with the suspension bolt holes are distributed on two sides of the raised area (5).

7. The timing cover for a gasoline engine with two horizontally opposed cylinders as set forth in claim 6, wherein the oil inlet duct (10) of the engine oil pump is provided with a pressure relief area.

8. The timing cover for the gasoline engine with the horizontally-opposed double cylinders as recited in claim 5, characterized in that a lug mounting end face (4) is provided at an end region of the timing cover body (1), the lug mounting end face (4) is lower than a timing cover front end face (6) of the timing cover body (1), the side of a lug mounting inward-extending boss (9) of the lug mounting end face (4) extending into the timing cover body (1) is connected with at least one reinforcing rib (7), and the reinforcing rib (7) can be positioned between the lug mounting inward-extending boss (9) and the inner edge of the timing cover body (1), or between the lug mounting inward-extending boss (9) and a suspension bolt hole boss II (3) closest to the lug mounting inward-extending boss (9).

9. The horizontally-opposed-double-cylinder gasoline engine timing cover as defined in claim 4, wherein the connection parts of the suspension bolt hole bosses II (3) and the timing cover body (1) form a concave structure (13) surrounding the bolt hole in a circle.

10. A horizontally opposed two-cylinder gasoline engine timing cover as defined in claim 9, wherein the overhanging bolt hole boss ii (3) and the portion where the timing cover body (1) meets together form a convex structure (14) surrounding the bolt hole by one turn, the convex structure (14) being adjacent to the concave structure (13) and located between the concave structure (13) and the bolt hole.