CN203430675U - Mounting flange of direct injection gasoline engine high-pressure oil pump - Google Patents
Mounting flange of direct injection gasoline engine high-pressure oil pump Download PDFInfo
- Publication number
- CN203430675U CN203430675U CN201320536228.3U CN201320536228U CN203430675U CN 203430675 U CN203430675 U CN 203430675U CN 201320536228 U CN201320536228 U CN 201320536228U CN 203430675 U CN203430675 U CN 203430675U
- Authority
- CN
- China
- Prior art keywords
- oil pump
- pressure oil
- high pressure
- flange
- supporting rib
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a mounting flange of a direct injection gasoline engine high-pressure oil pump. The mounting flange comprises a rhombic flange base body with a transition fillet. First bearing ribs and a second bearing rib are arranged on the flange surface of the rhombic flange base body matched with the mounting surface of a high-pressure oil pump support, the first bearing ribs are arc-shaped, the number of the first bearing ribs is two, the two first bearing ribs are located on the edges of two vertex angles of the rhombic flange base body respectively, the second bearing rib is round and is located on the edge of a high-pressure oil pump plunger mounting hole, and the height of the second bearing rib is decreased progressively from the positions of two obtuse angles of the rhombic flange base body. The fastening reliability of the mounting flange and the high-pressure oil pump support can be improved, and the risk of abnormal wear of a high-pressure oil pump plunger is reduced.
Description
Technical field
This practical assembly that relates to high pressure oil pump, is specifically related to a kind of mounting flange of direct spray petrol engine in cylinder high pressure oil pump.
Background technique
GDI(inner cylinder direct injection) petrol engine is the development trend of current petrol engine new technology, high pressure oil pump is one of most important component of GDI petrol engine, except the characteristic of high pressure oil pump itself is as great on engine performance impact in flow, pressure etc., reliably whether high pressure oil pump, correctly installed and also can be exerted an influence to engine performance, if it is unreliable to install, easily cause the inordinate wear of high pressure oil pump plunger, cause high pressure oil pump to lose efficacy.
Current conventional high pressure oil pump mounting flange (referring to Fig. 4), comprise the rhombus flange matrix 1 with knuckle, at rhombus flange matrix, near two drift angle places, offer bolt hole 2, at the middle part of rhombus flange matrix, offer high pressure oil pump plunger mounting hole 3, the flanged surface of the rhombus flange matrix coordinating with high pressure oil pump bearing is a plane, by bolt by the attachment face laminating of this flanged surface and high pressure oil pump bearing, fastening.Because the fastening force of high pressure oil pump is provided by bolt completely, when engine body vibrates, between two faces of laminating, there is the trend of relative sliding, easily cause bolt looseness, reliability is not high.
Publication number is CN202468116U, name is called the patent of " a kind of high pressure oil pump counter flange ", its flange body is circular, at flange body center, be provided with the positioning hole matching with high pressure oil pump positioning shaft, the inner ring of flange body and engine gear case connecting end surface is provided with circle positioning boss with matching, this structure can make high pressure oil pump accurate positioning, when high vibration, can avoid high pressure oil pump position to change, while convenient disassembly, but it can not solve the relative sliding problem between the flanged surface of flange body and the attachment face of high pressure oil pump bearing.
Summary of the invention
The purpose of this utility model is to provide a kind of mounting flange of direct spray petrol engine in cylinder high pressure oil pump, to increase the fastening reliability of itself and high pressure oil pump bearing.
The mounting flange of direct spray petrol engine in cylinder high pressure oil pump described in the utility model, comprise the rhombus flange matrix with knuckle, at rhombus flange matrix, near two drift angle places, offer bolt hole, at the middle part of rhombus flange matrix, offer high pressure oil pump plunger mounting hole; On the flanged surface of the rhombus flange matrix coordinating at the attachment face with high pressure oil pump bearing, be provided with first, second supporting rib, the first supporting rib is circular arc, there are two, it lays respectively at two drift angle edges of rhombus flange matrix, the second supporting rib is rounded, be positioned at the edge of high pressure oil pump plunger mounting hole, the height of this second supporting rib successively decreases along circumference from two obtuse angles of rhombus flange matrix.
Further, the height of described the first supporting rib is 0.05mm, and the height of described the second supporting rib is decremented to 0mm by 0.45mm.
Further, in order to optimize the stress condition of bolt hole, on the bolt attachment face of described rhombus flange matrix, be provided with bolt installation base, this bolt installation base is positioned at the edge of described bolt hole.
The utility model is by increasing the second supporting rib and two the first supporting ribs on the flanged surface at rhombus flange matrix, make to have formed two triangular supporting frames between the flanged surface of rhombus flange matrix and the attachment face of high pressure oil pump bearing, the structural principle according to triangle with stability, its supporting is stable, effectively reduced the relative sliding trend causing because of engine luggine, improve the reliability of fastening installation, thereby reduced the risk of high pressure oil pump plunger inordinate wear.
Accompanying drawing explanation
Fig. 1 is that master of the present utility model looks schematic diagram.
Fig. 2 is the plan view of Fig. 1.
Fig. 3 is axonometric drawing of the present utility model.
Fig. 4 is that the master of existing high pressure oil pump mounting flange looks schematic diagram.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
The mounting flange of direct spray petrol engine in cylinder high pressure oil pump as shown in Figure 1 to Figure 3, comprise the rhombus flange matrix 1 with knuckle, at rhombus flange matrix 1, near two drift angle places, respectively offer the bolt hole 2 that a diameter is 6.5mm, at the middle part of rhombus flange matrix 1, offer high pressure oil pump plunger mounting hole 3.On the flanged surface of the rhombus flange matrix 1 coordinating at the attachment face with high pressure oil pump bearing, be provided with the first supporting rib 4 and a second circular supporting rib 5 of two circular arcs, the height of the first supporting rib 4 height of the flanged surface of rhombus flange matrix 1 (with respect to) is 0.05mm, be positioned at two drift angle edges of rhombus flange matrix 1, the second support rib 5 is positioned at the edge of high pressure oil pump plunger mounting hole 3, the height of this second supporting rib 5 height of the flanged surface of rhombus flange matrix 1 (with respect to) starts by 0.45mm, to be decremented to 0mm along circumference from two obtuse angles of rhombus flange matrix 1, the second supporting rib 5 with certain altitude (being greater than 0mm) accounts for half of whole circumference.The bolt installation base 6 that to be provided with respect to this bolt attachment face height on the bolt attachment face of rhombus flange matrix 1 be 6.25mm, this bolt installation base 6 is positioned at the edge of bolt hole 2, bolt installation base 6 is circular for the face of bolt, and external diameter is 11.6mm.
In use, above-mentioned mounting flange is welded on high pressure oil pump, with bolt, by bolt hole 2 and bolt installation base 6, be arranged on high pressure oil pump bearing mounting flange is fastening, the second supporting rib 5 on the flanged surface of rhombus flange matrix 1 and two first supporting rib 4 two triangular supporting frames (sketching the contours part referring to dotted line in Fig. 1) of formation and the laminatings of the attachment face of high pressure oil pump bearing, play stable support effect.
Claims (3)
1. the mounting flange of a direct spray petrol engine in cylinder high pressure oil pump, comprise the rhombus flange matrix (1) with knuckle, at rhombus flange matrix, near two drift angle places, offer bolt hole (2), at the middle part of rhombus flange matrix, offer high pressure oil pump plunger mounting hole (3); It is characterized in that: on the flanged surface of the rhombus flange matrix coordinating at the attachment face with high pressure oil pump bearing, be provided with first, second supporting rib (4,5), the first supporting rib is circular arc, there are two, it lays respectively at two drift angle edges of rhombus flange matrix, the second supporting rib is rounded, be positioned at the edge of high pressure oil pump plunger mounting hole, the height of this second supporting rib successively decreases along circumference from two obtuse angles of rhombus flange matrix.
2. the mounting flange of direct spray petrol engine in cylinder high pressure oil pump according to claim 1, is characterized in that: the height of described the first supporting rib (4) is 0.05mm, and the height of described the second supporting rib (5) is decremented to 0mm by 0.45mm.
3. the mounting flange of direct spray petrol engine in cylinder high pressure oil pump according to claim 1, it is characterized in that: on the bolt attachment face of described rhombus flange matrix (1), be provided with bolt installation base (6), this bolt installation base is positioned at the edge of described bolt hole (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320536228.3U CN203430675U (en) | 2013-08-30 | 2013-08-30 | Mounting flange of direct injection gasoline engine high-pressure oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320536228.3U CN203430675U (en) | 2013-08-30 | 2013-08-30 | Mounting flange of direct injection gasoline engine high-pressure oil pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203430675U true CN203430675U (en) | 2014-02-12 |
Family
ID=50059719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320536228.3U Expired - Fee Related CN203430675U (en) | 2013-08-30 | 2013-08-30 | Mounting flange of direct injection gasoline engine high-pressure oil pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203430675U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109072841A (en) * | 2016-04-18 | 2018-12-21 | 大陆汽车有限公司 | Combination unit and arrangement including shell and flange |
| US11953032B2 (en) | 2021-02-09 | 2024-04-09 | Caterpillar Inc. | Hydraulic pump or motor with mounting configuration for increased torque |
-
2013
- 2013-08-30 CN CN201320536228.3U patent/CN203430675U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109072841A (en) * | 2016-04-18 | 2018-12-21 | 大陆汽车有限公司 | Combination unit and arrangement including shell and flange |
| US11953032B2 (en) | 2021-02-09 | 2024-04-09 | Caterpillar Inc. | Hydraulic pump or motor with mounting configuration for increased torque |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140212 Termination date: 20190830 |