CN207847799U - Stirling engine low vibration oil sump - Google Patents

Abstract

The utility model discloses a kind of Stirling engine low vibration oil sumps, including oil pan body, oil pipe component, oil suction tube assembly；The both sides of oil pan body form inclination angle；Lower cavity is formed at the lower part of oil pan body；The bottom of oil pan body is fixedly installed oil suction tube assembly, and one end of oil suction tube assembly extend into the lower cavity of oil pan body, the other end connected pipes component of oil suction tube assembly；Multiple inner rib plates are formed in the lower cavity of oil pan body；Inner rib plate extends along the width direction of oil pan body；The bottom outer wall and both sides outer wall of oil pan body are respectively formed with deep floor；Multiple circular holes are distributed in the tube wall of oil suction tube assembly, and the surface of oil suction tube assembly is covered with strainer.The utility model can improve the rigidity and surface vibration resistance of Stirling engine oil sump under the requirement for meeting Stirling engine maximum functional oil mass, oil sump local vibration when reducing engine operation.

Description

Stirling engine low vibration oil sump

Technical field

The utility model is related to a kind of attachmentes of engine, and in particular to a kind of Stirling engine low vibration oil bottom Shell.

Background technology

Stirling engine (Stirling Engine) is a kind of outer combustion-ing engine of enclosed extraction cycle, and fuel oil exists Outer cylinder is mixed and burned with oxygen/air, transfers heat to internal cycle fluid, working medium is according to Stirling cycle work Make, thermal energy is translated into the kinetic energy of reciprocating motion of the pistons, driving bent axle acting realizes chemical energy → thermal energy → mechanical energy Conversion.Since the efficiency of Stirling cycle is equal to highest cycle efficieny --- the efficiency of Carnot cycle, so being a kind of high efficiency Energy conversion device.Stirling engine has the characteristics that low noise, the low and energy of pollution are adaptable.Wherein, oily bottom Shell plays the role of storage in the operation of Stirling engine, collects machine oil, pressurized crankcase and radiate to machine oil.

Oil sump can be divided into dry type and wet type according to oil storage mode.In dry sump, oil pan body does not store Fluid, only to collect machine oil when cycle of engine works, machine oil is stored in dedicated external fuel tank.When engine is run The machine oil that oil sump is collected into is pumped into external fuel tank by oil pump, and by another lubricating oil pump by the oil in external fuel tank Liquid is pumped into engine lubrication system.The type oil sump can realize reliable fuel feeding, but due to complicated and needs two Lubricating oil pump causes the power that lubricating system consumes larger.Wet sump design in, oil pan body for store, collection machine Oil, lubricating oil pump directly draw machine oil from oil sump bottom and provide pressure machine oil for lubricating system.The type oil sump oil pipe arranges phase To simple, a lubricating oil pump is only needed, therefore lubricating system wasted work is relatively low.Oil sump of the present invention using wet sump, and The bottom surface of Stirling engine crankcase is connected.

What Fig. 1-3 was provided is the wet sump for the simple thin wall-type that common type uses at present, such complete thin wall Its vibration noise of type oil sump is larger.Specifically, by the way of bottom plane oil suction, oil storage mode then uses dry-oil bottom Shell.The oil pan body of the oil sump does not store fluid, and only to collect the machine oil of cycle of engine work, machine oil is stored in In dedicated external fuel tank.The machine oil that oil sump is collected into is pumped into external fuel tank when running by oil pump by engine, and The fluid in external fuel tank is pumped into engine lubrication system by another lubricating oil pump.The oil sump can realize reliable confession Oil, but due to complicated and two lubricating oil pump of needs, cause the power that lubricating system consumes larger.

Oil sump is maximum thin-wall part in Stirling engine, generally uses thin-walled steel plate punch forming.This processing Mode cost when producing in enormous quantities is relatively low, but this kind of oil sump, under the common activation of crankcase and fluid, generation is shaken Moving noise is larger.

The design of the oil sump of existing Stirling engine is primarily upon its oil reserve, and fresh in terms of its damping behavior There are research and improvement, the local vibration noise of oil sump is larger when this causes Stirling engine to run, and the part of oil sump Vibration can evoke the vibration of fluid and intensify the local vibration of oil sump in turn, and be caused to the vibration index of engine complete machine It influences.

With higher and higher to Stirling engine complete machine oscillation index request, need rigidity by improving oil sump or Person takes other measures to achieve the purpose that reducing oil sump transmits vibration.

Invention content

The purpose of this utility model is to provide a kind of Stirling engine low vibration oil sump.

The technical scheme that the utility model is provided is as follows：

Including oil pan body 1, oil pipe component 2, oil suction tube assembly 3；The both sides of oil pan body 1 form inclination angle；Oily bottom Lower cavity is formed at the lower part of shell ontology 1, and the cross section of lower cavity is less than the top surface of oil pan body 1；Oil pan body 1 Bottom is fixedly installed oil suction tube assembly 3, and one end of oil suction tube assembly 3 extend into the lower cavity of oil pan body 1, fuel sucking pipe The other end connected pipes component 2 of component 3；Multiple inner rib plates are formed in the lower cavity of oil pan body 1；Inner rib plate is along oil The width direction of bottom case ontology 1 extends；The bottom outer wall and both sides outer wall of oil pan body 1 are respectively formed with deep floor；It inhales Multiple circular holes are distributed in the tube wall of oil pipe component 3, and the surface of oil suction tube assembly 3 is covered with strainer.

Further, polylith magnet 4 is distributed in the lower cavity inner wall of the oil pan body 1.

Further, the bottom outer wall of the oil pan body 1 is formed with M shape floor.

Further, the both sides outer wall of the oil pan body 1 is formed with groined type floor.

Further, the other end of the oil suction tube assembly 3 is fixedly connected with oil pipe component 2 by flange.

Further, the oil suction tube assembly 3 is bolted to connection the flange of oil pan body 1.

Further, the bottom center of the oil pan body 1 opens up fluted, and groove bottom end is provided with bleeder plug 5.

Further, the multiple circular hole is distributed in the tube wall of oil suction tube assembly 3 in honeycomb.

Further, the circulation there are two semicircle orifice for bottom machine oil is opened in the lower part of each inner rib plate.

Further, the inner rib plate and the inner wall of oil pan body 1 are smoothly transitted by circular arc.

A kind of Stirling engine low vibration oil sump provided by the utility model, can bring following at least one to have Beneficial effect：

1, the utility model can improve Stirling and start under the requirement for meeting Stirling engine maximum functional oil mass The rigidity and surface vibration resistance of oil pan, oil sump local vibration when reducing engine operation, while simplifying oil suction as possible The arrangement of pipeline makes oil supply system have smaller wasted work.

2, the utility model is provided with horizontal ribbed in the lower cavity of oil pan body, can make oil sump entirety Lateral stiffness greatly improves, while can also play the role of stable fluid.The utility model is outside the both sides of oil pan body Wall and bottom outer wall are respectively disposed with deep floor, by reducing plane of oscillation area, may be caused with reducing excessive plane Wall Vibration, i.e. drum surface effect so that local stiffness increases, while enhancing the cooling effect of oil sump.This practicality It is novel to there is larger rigidity, realize low vibration characteristic under the premise of meeting oil reserve requirement.

3, the utility model uses the cylindrical surface oil suction of oil suction tube assembly, and slot milling inside oil sump to be arranged rib Plate, to achieve the purpose that improve oil sump integral rigidity.

4, polylith magnet is distributed in the oil pan body bottom surface of the utility model, can small iron filings in suction machine oil, prevent Only it enters the surface of friction pair of lubricating system damage Stirling engine, can greatly improve the cleannes of machine oil, improves this spy The safety and reliability of woods engine operation.

5, it uses flange connection between the oil suction tube assembly and oil pipe component of the utility model and is fixed on bolt It is easy to disassemble compared with existing oil pipe mounting means on the flange of oil pan body, conducive to quickly draining the oil and to space requirement It is not high.

6, multiple circular holes are evenly equipped in honeycomb on the tube wall of the oil suction tube assembly of the utility model, fuel sucking pipe can conduct The skeleton of strainer, it is small when can make strainer mesh compared with primary plane oil suction form, the premise of oil suction resistance is not improved in guarantee Under, improve the effect of inlet port oil strain.

7, the oil pan body bottom of the utility model is provided with semicolumn groove, and fuel sucking pipe is placed in oil sump bottom, Ensure the reliable oil suction of fuel sucking pipe.

8, the utility model is cast using aluminium alloy.The oil sump cost of cast aluminium is slightly higher, but relative rigidity is larger, And conveniently cast out the reinforcing rib or gusset of shape and structure complexity.

Description of the drawings

Below by a manner of clearly understandable, preferred embodiment is described with reference to the drawings, to above-mentioned characteristic, the skill of the application Art feature, advantage and its realization method are further described.

Fig. 1 is the oil sump front view of prior art Stirling engine；

Fig. 2 is the oil sump three-dimensional side vertical view of prior art Stirling engine；

Fig. 3 is the oil sump three-dimensional side upward view of prior art Stirling engine；

Fig. 4 is the schematic diagram of the utility model Stirling engine low vibration oil sump；

Fig. 5 is the vertical view of Fig. 4；

Fig. 6 is the upward view of Fig. 4；

Fig. 7 is the stereoscopic schematic diagram of the utility model；

Fig. 8 is the stereoscopic schematic diagram of another angle of the utility model.

Drawing reference numeral explanation：

1 is oil pan body, and 2 be oil pipe component,

3 be oil suction tube assembly, and 4 be magnet,

5 be bleeder plug.

Specific implementation mode

In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, attached drawing will be compareed below Illustrate specific embodiment of the present utility model.It should be evident that the accompanying drawings in the following description is only the one of the utility model A little embodiments for those of ordinary skill in the art without creative efforts, can also be according to these Attached drawing obtains other attached drawings, and obtains other embodiments.

To make simplified form, only schematically shown in each figure with the relevant part of the utility model, they are not Represent its practical structures as product.

As shown in figure 4, the utility model Stirling engine low vibration oil sump, including oil pan body 1, oil pipe group Part 2, oil suction tube assembly 3, magnet 4, bleeder plug 5；

The both sides of oil pan body 1 form inclination angle, to which fluid is not spilt under the inclination angle that ensures to work needed for Stirling；Oil Lower cavity is formed at the lower part of bottom case ontology 1, and the cross section of lower cavity is less than the top surface of oil pan body 1, to be formed to oil Liquid collects effect；

The bottom of oil pan body 1 is fixedly installed oil suction tube assembly 3, and one end of oil suction tube assembly 3 extend into oil sump The other end of the lower cavity of ontology 1, oil suction tube assembly 3 is fixedly connected with oil pipe component 2 by flange；Oil suction tube assembly 3 passes through Bolt is fixedly connected with the flange of oil pan body 1；The structure is convenient for disassembly and assembly, conducive to quickly draining the oil.

Inner rib plate there are three being formed in the lower cavity of oil pan body 1；Width direction of the inner rib plate along oil pan body 1 Extend；Inner rib plate can reinforce the rigidity of 1 width direction of oil pan body, while reduce the fluctuation on fluid surface, play stabilization The effect of fluid；Open the circulation there are two semicircle orifice for bottom machine oil, inner rib plate and oil sump sheet in the lower part of each inner rib plate The inner wall of body 1 is smoothly transitted by circular arc；

The bottom outer wall of oil pan body 1 is formed with M shape floor；The both sides outer wall of oil pan body 1 is formed with well word Shape floor；M shape floor and groined type floor can reinforce the local stiffness of 1 wall surface of oil pan body, while promote oil sump Heat dissipation performance；

The tube wall of oil suction tube assembly 3 is evenly equipped with multiple circular holes in honeycomb, and the surface of oil suction tube assembly 3 is covered with one layer of filter Net.

The bottom interior wall of oil pan body 1 is evenly equipped with four blocks of circular ring type magnet 4, for adsorbing in Stirling engine work Issuable small iron filings prevent it from entering the surface of friction pair of lubricating system damage Stirling engine, improve complete machine fortune Capable safety and reliability；Magnet 4 is realized by bolt and is fixedly connected with oil pan body 1；

The bottom center of oil pan body 1 offers the groove of semi-cylindrical, and groove bottom end is provided with bleeder plug 5.

In use, the utility model is connected with the bottom surface of Stirling engine crankcase.When Stirling engine is run, For machine oil in the lower cavity of oil pan body 1 under the suction of lubricating oil pump, the strainer by 3 surface of oil suction tube assembly is thick Enter fuel sucking pipe component 3 after filter, is transmitted into the pipeline road of lubricating system through oil pipe component 2.

The oil pan body of the utility model is for storing, collecting machine oil, and lubricating oil pump is directly from oil sump bottom suction machine Oil provides pressure machine oil for lubricating system.The oil pipe arrangement of the utility model is simple, only needs a lubricating oil pump, therefore lubricating system Wasted work is relatively low.

The utility model is suitable for low vibration and requires the lower Stirling engine to work.

It should be noted that above-described embodiment can be freely combined as needed.The above is only the utility model Preferred embodiment, it is noted that for those skilled in the art, do not departing from the utility model principle Under the premise of, several improvements and modifications can also be made, these improvements and modifications also should be regarded as the scope of protection of the utility model.

Claims (10)

1. a kind of Stirling engine low vibration oil sump, which is characterized in that including：Oil pan body (1), oil pipe component (2), oil suction tube assembly (3)；The both sides of oil pan body (1) form inclination angle；Lower chamber is formed at the lower part of oil pan body (1) Body, the cross section of lower cavity are less than the top surface of oil pan body (1)；

The bottom of oil pan body (1) is fixedly installed oil suction tube assembly (3), and one end of oil suction tube assembly (3) extend into oily bottom The lower cavity of shell ontology (1), the other end connected pipes component (2) of oil suction tube assembly (3)；

It is formed with multiple inner rib plates in the lower cavity of oil pan body (1)；Width direction of the inner rib plate along oil pan body (1) Extend；The bottom outer wall and both sides outer wall of oil pan body (1) are respectively formed with deep floor；

Multiple circular holes are distributed in the tube wall of oil suction tube assembly (3), and the surface of oil suction tube assembly (3) is covered with strainer.

2. Stirling engine according to claim 1 low vibration oil sump, it is characterised in that：The oil pan body (1) polylith magnet (4) is distributed in lower cavity inner wall.

3. Stirling engine according to claim 1 low vibration oil sump, it is characterised in that：The oil pan body (1) bottom outer wall is formed with M shape floor.

4. Stirling engine according to claim 1 or 3 low vibration oil sump, it is characterised in that：The oil sump The both sides outer wall of ontology (1) is formed with groined type floor.

5. Stirling engine according to claim 1 low vibration oil sump, it is characterised in that：The oil suction tube assembly (3) the other end is fixedly connected with oil pipe component (2) by flange.

6. Stirling engine low vibration oil sump according to claim 1 or 5, it is characterised in that：The fuel sucking pipe Component (3) is bolted to connection the flange of oil pan body (1).

7. Stirling engine according to claim 1 low vibration oil sump, it is characterised in that：The oil pan body (1) bottom center opens up fluted, and groove bottom end is provided with bleeder plug (5).

8. Stirling engine according to claim 1 low vibration oil sump, it is characterised in that：The multiple circular hole is in Honeycomb is distributed in the tube wall of oil suction tube assembly (3).

9. Stirling engine according to claim 1 low vibration oil sump, it is characterised in that：Each inner rib plate Lower part open there are two semicircle orifice be used for bottom machine oil circulation.

10. the Stirling engine low vibration oil sump according to claim 1 or 9, it is characterised in that：The inner rib plate It is smoothly transitted by circular arc with the inner wall of oil pan body (1).