CN104895719A - High-pressure oil pump mounting seat with sound insulation structure - Google Patents
High-pressure oil pump mounting seat with sound insulation structure Download PDFInfo
- Publication number
- CN104895719A CN104895719A CN201510342821.8A CN201510342821A CN104895719A CN 104895719 A CN104895719 A CN 104895719A CN 201510342821 A CN201510342821 A CN 201510342821A CN 104895719 A CN104895719 A CN 104895719A
- Authority
- CN
- China
- Prior art keywords
- oil pump
- pressure oil
- sound insulation
- high pressure
- insulation box
- 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.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
- F02M2200/09—Fuel-injection apparatus having means for reducing noise
Landscapes
- Fuel-Injection Apparatus (AREA)
- Rotary Pumps (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
Abstract
The invention relates to a high-pressure oil pump mounting seat with a sound insulation structure. A mounting seat body comprises a high-pressure oil pump cam chamber, a first flange, a supporting component and a second flange, four first bolt holes are formed in the first flange, and two second bolt holes are formed in the second flange. The high-pressure oil pump mounting seat is characterized by further comprising a sound insulation box and a sealing cover, wherein the sound insulation box is connected with the second flange of the mounting seat body, the sealing cover is connected with the sound insulation box, and three open groove structures are arranged on the side wall of the sound insulation box. Three vertical sealing baffle plates are arranged at the edge of the sealing cover and matched with the three open groove structures on the side wall of the sound insulation box in a one-to-one corresponding manner respectively. A noise spreading route generated in operation of a high-pressure oil pump can be remarkably reduced, and the NVH (noise vibration and harshness) performance of an engine is improved.
Description
Technical field
The present invention relates to high-pressure oil pump of engine accessory, particularly a kind of high pressure oil pump fitting seat with acoustic construction.
Background technique
For improving the fuel economy of motor, and meet the emission regulation demands of increasingly stringent, more and more motor have employed gasoline in-cylinder direct injection (hereinafter referred to as GDI) technology.Gasoline pressure is raised by high pressure oil pump by GDI technology, then by high pressure nozzle, high pressure fuel is directly injected into firing chamber.GDI engine transient response is good, can control air fuel ratio accurately, realizes layering lean-burn, homogeneous combustion, thus emissions reduction, improve fuel economy.High pressure oil pump is one of vital part of GDI technology, by camshaft actuated.Therefore, general GDI engine is all designed with special high pressure oil pump fitting seat, with fixing high pressure oil pump, realizes pump functional oil.A kind of direct fuel-injection engine high pressure oil pump bearing disclosed in CN202867055U, the problems such as existing high pressure oil pump bearing rigidity is low for solving, poor work stability.Its rear end is closed, front end is provided with high pressure oil pump mounting flange, and bottom surface, for installing stationary plane, is provided with high pressure oil pump tappet mounting hole in the middle part of high pressure oil pump mounting flange, described high pressure oil pump bearing is provided with three bearing construction bolt boss, and bearing construction bolt boss height is 18-20 millimeter.Its by improving bearing construction bolt boss, I-shaped stiffening rib and fan-shaped stiffening rib be set at the severe place of stress, in high pressure oil pump tappet mounting hole, design tappet anti-rotation groove, high pressure oil pump support body adopts the structure of an opening, a face closure etc., and item improves, make overall structure compacter, well-balanced, and substantially improve functional reliability and the stability of high pressure oil pump bearing, the weight saving of high pressure oil pump bearing can be made simultaneously, casting manufacturability improves, and is applicable to producing in enormous quantities.
But, due to the high speed to-and-fro motion of pump pin in high pressure oil pump and the shock etc. of valve core of the electromagnetic valve, cause near high pressure oil pump, sending the very large sound, affect the NVH performance of complete machine.Above-mentioned a kind of direct fuel-injection engine high pressure oil pump bearing does not solve these problems of high pressure oil pump, therefore, also needs further exploration.
Summary of the invention
The object of this invention is to provide a kind of high pressure oil pump fitting seat with acoustic construction, the noise transmission paths produced when it significantly can reduce high pressure oil pump work, improves the NVH performance of motor.
A kind of high pressure oil pump fitting seat with acoustic construction of the present invention, comprise fitting seat body, described fitting seat body is made up of high pressure oil pump cam chamber, the first flange being connected to high pressure oil pump cam chamber lower end, the supporting member be connected on high pressure oil pump cam chamber outer side wall, the second flange of being connected with this supporting member, four the first bolts hole are provided with at described first flange, described second flange is provided with two the second bolts hole, it is characterized in that:
Also comprise and the sound insulation box body of the second Flange joint of described fitting seat body, the sealing cover that is connected with described sound insulation box body;
The bottom of described sound insulation box body is provided with a circular hole and two via holes, described two via holes respectively with two the second bolt hole one_to_one corresponding on described second flange; The upper end oral area of described sound insulation box body is provided with three the 3rd bolts hole, and the sidewall of described sound insulation box body is provided with three notching constructions.
The edge of described sealing cover is provided with three through holes, described three through holes respectively with three the 3rd bolt hole one_to_one corresponding in sound insulation box body upper end-hole portion; The edge of described sealing cover is provided with three vertical sealing baffles, and described three vertical sealing baffles coordinate with the notching construction one_to_one corresponding of three on sound-proof box body sidewall respectively.
The described high pressure oil pump fitting seat with acoustic construction, fitting seat body described in it is coordinated with described four the first bolts hole respectively by four the first bolts and is located by connecting on cylinder head assembly.
The described high pressure oil pump fitting seat with acoustic construction, high pressure oil pump is located at its underpart in described sound insulation box body and stretches in described high pressure oil pump cam chamber through the circular hole bottom described sound insulation box body, and two the second bolts hole that described high pressure oil pump is each passed through by two the second bolts on two mounting holes on it, two via holes bottom described sound insulation box body and the second flange are fixedly connected.
The described high pressure oil pump fitting seat with acoustic construction, sealing cover described in it is fixedly connected with three the 3rd bolts hole in described sound insulation box body upper end-hole portion respectively by three the 3rd bolts.
Beneficial effect of the present invention: due to by wrapping up high pressure oil pump completely, having blocked the propagation path of high pressure oil pump noise, thus having reached the effect of sound insulation, having improved the NVH performance of motor.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the structural representation of fitting seat body.
Fig. 3 is the structural representation of sound insulation cavity.
Fig. 4 is the structural representation of sealing cover.
Fig. 5 is assembling explosive view of the present invention.
In figure: 1-high pressure oil pump cam chamber, 11-first flange, 12-first bolt hole, 13-supporting member, 14-second flange, 15-second bolt hole, 16-first bolt, 17-second bolt; 2-sound insulation box body, 21-via hole, 22-the 3rd bolt hole, 23-notching construction, 24-the 3rd bolt; 3-sealing cover, 31-through hole, 32-sealing baffle; 4-high pressure oil pump.
Embodiment
Below in conjunction with accompanying drawing, the present invention is conducted further description.
See a kind of high pressure oil pump fitting seat with acoustic construction shown in Fig. 1 to Fig. 5, comprise fitting seat body, described fitting seat body is made up of high pressure oil pump cam chamber 1, the first flange 11 being connected to high pressure oil pump cam chamber lower end, the supporting member 13 be connected on high pressure oil pump cam chamber outer side wall, the second flange 14 of being connected with this supporting member, four the first bolts hole 12 are provided with at described first flange 11, described second flange 14 is provided with two the second bolts hole 15, and its outstanding substantive distinguishing features is:
Also comprise the sound insulation box body 2 be connected with the second flange 14 of described fitting seat body, the sealing cover 3 be connected with described sound insulation box body; The bottom of described sound insulation box body 2 is provided with a circular hole and two via holes 21, described two via holes respectively with two the second bolt hole 15 one_to_one corresponding on described second flange; The upper end oral area of described sound insulation box body 2 is provided with three the 3rd bolts hole 22, and the sidewall of described sound insulation box body 2 is provided with three notching constructions 23; Notching construction on sound insulation box body is to dodge the interference that may occur in high pressure oil pump installation process.
The edge of described sealing cover 3 is provided with three through holes 31, described three through holes respectively with three the 3rd bolt hole 22 one_to_one corresponding of sound insulation box body 2 upper end oral area; The edge of described sealing cover 3 is provided with three vertical sealing baffles 32, and described three vertical sealing baffles coordinate with three notching construction 23 one_to_one corresponding on sound insulation box body 2 sidewall, respectively to realize the effect of wrapping up high pressure oil pump.
Further, described fitting seat body is coordinated with described four the first bolts hole 12 respectively by four the first bolts 16 and is located by connecting on cylinder head assembly.
Further, high pressure oil pump 4 is located at its underpart in described sound insulation box body 2 and stretches in described high pressure oil pump cam chamber 1 through the circular hole bottom described sound insulation box body 2, and two the second bolts hole 15 that described high pressure oil pump is each passed through by two the second bolts 17 on two mounting holes on it, two via holes 21 bottom described sound insulation box body 2 and the second flange 14 are fixedly connected.
Described sealing cover 3 is fixedly connected with three the 3rd bolts hole 22 of described sound insulation box body 2 upper end oral area respectively by three the 3rd bolts 24.
High pressure oil pump is arranged in sound insulation box body by two the second bolts, and now, high pressure oil pump only has part to be wrapped, and its noise still can spread out of.For realizing the parcel completely of high pressure oil pump, use three the 3rd bolts sealing cover to be connected to sound insulation box body upper end-hole portion and formed hermetically sealed, the approach of noise transmission greatly reduces, and improves motor NVH performance.
Claims (4)
1. the high pressure oil pump fitting seat with acoustic construction, comprise fitting seat body, described fitting seat body is made up of high pressure oil pump cam chamber (1), the first flange (11) being connected to high pressure oil pump cam chamber lower end, the supporting member (13) be connected on high pressure oil pump cam chamber outer side wall, the second flange (14) of being connected with this supporting member, four the first bolts hole (12) are provided with described first flange (11), described second flange (14) is provided with two the second bolts hole (15), it is characterized in that:
Also comprise the sound insulation box body (2) be connected with second flange (14) of described fitting seat body, the sealing cover (3) be connected with described sound insulation box body;
The bottom of described sound insulation box body (2) is provided with a circular hole and two via holes (21), described two via holes respectively with two the second bolt hole (15) one_to_one corresponding on described second flange; The upper end oral area of described sound insulation box body (2) is provided with three the 3rd bolts hole (22), and the sidewall of described sound insulation box body (2) is provided with three notching constructions (23);
The edge of described sealing cover (3) is provided with three through holes (31), described three through holes respectively with three the 3rd bolt hole (22) one_to_one corresponding of sound insulation box body (2) upper end oral area; The edge of described sealing cover (3) is provided with three vertical sealing baffles (32), and described three vertical sealing baffles coordinate with three notching construction (23) one_to_one corresponding on sound insulation box body (2) sidewall respectively.
2. the high pressure oil pump fitting seat with acoustic construction according to claim 1, is characterized in that: described fitting seat body is coordinated with described four the first bolts hole (12) be respectively located by connecting on cylinder head assembly by four the first bolts (16).
3. the high pressure oil pump fitting seat with acoustic construction according to claim 1 and 2, it is characterized in that: high pressure oil pump (4) is located at the interior its underpart of described sound insulation box body (2) and stretches in described high pressure oil pump cam chamber (1) through the circular hole bottom described sound insulation box body (2), and described high pressure oil pump is each passed through two mounting holes on it by two the second bolts (17), two via holes (21) bottom described sound insulation box body (2) are fixedly connected with two the second bolts hole (15) on the second flange (14).
4. the high pressure oil pump fitting seat with acoustic construction according to claim 1 and 2, is characterized in that: described sealing cover (3) is fixedly connected with three the 3rd bolts hole (22) of described sound insulation box body (2) upper end oral area respectively by three the 3rd bolts (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510342821.8A CN104895719B (en) | 2015-06-19 | 2015-06-19 | A kind of high-pressure oil pump mounting seat with sound-insulating structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510342821.8A CN104895719B (en) | 2015-06-19 | 2015-06-19 | A kind of high-pressure oil pump mounting seat with sound-insulating structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104895719A true CN104895719A (en) | 2015-09-09 |
| CN104895719B CN104895719B (en) | 2017-08-01 |
Family
ID=54028611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510342821.8A Active CN104895719B (en) | 2015-06-19 | 2015-06-19 | A kind of high-pressure oil pump mounting seat with sound-insulating structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104895719B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017071921A1 (en) * | 2015-10-28 | 2017-05-04 | Robert Bosch Gmbh | High-pressure fuel pump |
| WO2022033250A1 (en) * | 2020-08-11 | 2022-02-17 | 中国第一汽车股份有限公司 | High pressure oil pump base and automobile |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2818810Y (en) * | 2005-08-12 | 2006-09-20 | 杜延斌 | Noise reducer of high-pressure plunger pump and centrifugal pump set |
| CN200993070Y (en) * | 2006-11-23 | 2007-12-19 | 广西玉柴机器股份有限公司 | Fuel injection pump drive shaft sound-isolating cover |
| CN101737214A (en) * | 2008-11-17 | 2010-06-16 | 通用汽车环球科技运作公司 | Engine with oil pump muffler and noise damper |
| CN201925152U (en) * | 2011-01-18 | 2011-08-10 | 山东贺友集团有限公司 | Noise-isolation device for oil pump |
| WO2011106244A2 (en) * | 2010-02-23 | 2011-09-01 | Shiloh Industries, Inc. | Acoustic cover for vehicle fuel injection pump |
| JP2011208538A (en) * | 2010-03-29 | 2011-10-20 | Daikyonishikawa Corp | Pump cover mounting structure |
| CN202867055U (en) * | 2012-07-27 | 2013-04-10 | 长城汽车股份有限公司 | High-pressure oil pump support of direct injection engine |
| CN203463213U (en) * | 2013-07-30 | 2014-03-05 | 长城汽车股份有限公司 | Noise reduction device for high-pressure oil pump in automobile engine |
-
2015
- 2015-06-19 CN CN201510342821.8A patent/CN104895719B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2818810Y (en) * | 2005-08-12 | 2006-09-20 | 杜延斌 | Noise reducer of high-pressure plunger pump and centrifugal pump set |
| CN200993070Y (en) * | 2006-11-23 | 2007-12-19 | 广西玉柴机器股份有限公司 | Fuel injection pump drive shaft sound-isolating cover |
| CN101737214A (en) * | 2008-11-17 | 2010-06-16 | 通用汽车环球科技运作公司 | Engine with oil pump muffler and noise damper |
| WO2011106244A2 (en) * | 2010-02-23 | 2011-09-01 | Shiloh Industries, Inc. | Acoustic cover for vehicle fuel injection pump |
| JP2011208538A (en) * | 2010-03-29 | 2011-10-20 | Daikyonishikawa Corp | Pump cover mounting structure |
| CN201925152U (en) * | 2011-01-18 | 2011-08-10 | 山东贺友集团有限公司 | Noise-isolation device for oil pump |
| CN202867055U (en) * | 2012-07-27 | 2013-04-10 | 长城汽车股份有限公司 | High-pressure oil pump support of direct injection engine |
| CN203463213U (en) * | 2013-07-30 | 2014-03-05 | 长城汽车股份有限公司 | Noise reduction device for high-pressure oil pump in automobile engine |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017071921A1 (en) * | 2015-10-28 | 2017-05-04 | Robert Bosch Gmbh | High-pressure fuel pump |
| US10309359B2 (en) | 2015-10-28 | 2019-06-04 | Robert Bosch Gmbh | High-pressure fuel pump |
| WO2022033250A1 (en) * | 2020-08-11 | 2022-02-17 | 中国第一汽车股份有限公司 | High pressure oil pump base and automobile |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104895719B (en) | 2017-08-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9464593B2 (en) | Piston of an internal combustion engine | |
| CN204402689U (en) | The valve mechanism cover cap assembly of accessible site high pressure oil rail | |
| CN104895719A (en) | High-pressure oil pump mounting seat with sound insulation structure | |
| CN203742826U (en) | Automobile engine timing cavity structure | |
| JP3613054B2 (en) | Direct injection engine | |
| EP2915990B1 (en) | Arrangement of an intake manifold, a cylinder head and fuel injection valves | |
| CN206513484U (en) | Engine and its high-pressure oil pump mounting seat | |
| CN201705486U (en) | Cylinder head of diesel engine | |
| CN112145310A (en) | Cylinder head cover integrating chain cavity and oil-gas separator mounting structure | |
| KR101219860B1 (en) | Mounting structure of high pressure fuel pump for gasoline direct injection engine | |
| CN102312748A (en) | Cylinder cover of diesel engine | |
| CN203441616U (en) | Integral air cylinder cover | |
| CN220336979U (en) | Cylinder head | |
| CN213478515U (en) | Cylinder head cover integrating chain cavity and oil-gas separator mounting structure | |
| JP4248521B2 (en) | In-cylinder direct injection internal combustion engine | |
| CN213392417U (en) | Integrated timing front housing assembly | |
| CN213980991U (en) | Gear chamber cover sealing structure | |
| CN202250440U (en) | Cylinder cover of internal-combustion engine and internal-combustion engine using same | |
| CN114233506B (en) | Through bolt type four-cylinder diesel engine body | |
| CN214403781U (en) | Engine oil pump mounting structure | |
| CN213478506U (en) | Cylinder cover integrated with chain cavity | |
| CN217270516U (en) | Cylinder head, engine and vehicle | |
| CN203420792U (en) | Water sealing jacket cylinder of engine | |
| CN207064122U (en) | A kind of monoblock type pump cover for reducing gasoline direct injection engine high-pressure oil pump operating noise | |
| CN203321654U (en) | Piston cooling structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |