CN1650122A

CN1650122A - Swash plate devices

Info

Publication number: CN1650122A
Application number: CNA028295137A
Authority: CN
Inventors: 斯图尔特·德维斯
Original assignee: NO CRANK TYPE ENGINE CORP
Current assignee: NO CRANK TYPE ENGINE CORP
Priority date: 2001-06-27
Filing date: 2002-06-27
Publication date: 2005-08-03
Also published as: AUPR592301A0; WO2003002893A1

Abstract

A swash plate device suitable for use in an internet combustion engine and other applications has a rotatable drive shaft, a swash plate mechanism and a radial arm mechanism adapted to engage with the swash plate mechanism and be connected to pistons which move within cylinders extending parallel to the axial direction of the drive shaft; the piston accommodate a sliding cylindrical connector connected to the arm and which slides transversely of the piston during motion and the profile of the swash plate mechanism initiates a rotational action of the connector prior to and after the dead centre positions of the piston whereby a dwell period is established. In another embodiment, the swash plate element provides a swash surface disposed in a plane extending at 67.5 degrees to the axis of the piston.

Description

The wobbler device

Technical field

The present invention is relevant with the mechanical device of these devices of combination with the wobbler device.The use case of this inventive concept comprises motor, fields such as motor and pump, and in these fields, the wobbler device is used to rotatablely move and the conversion of linear motion.

Background technique

It is generally acknowledged that the wobbler device can be used to change multiple rotatablely moving and to-and-fro motion.Yet the present inventor believes, known structure is done new and useful change, can provide tangible advantage in a lot of the application, and the present invention comes out with this contemplates.

More particularly, the limitation of former wobbler design has become the problem that loads with friction and wobbler upper piston and the needs of the geometrical issues that needs to solve in wobbler designs.

The former wobbler that present present inventor knows comprises as follows:

U. S. Patent 6003480 (Quayle etc.)

U. S. Patent 1255973 (Almen)

U. S. Patent 2258157 (Almen)

B. P. 2101226

Australian patent application 14759/23 (Michell)

Because above-named disclosed explanation, should be in them neither one can be in the field, local in Australia or other, build general knowledge.The present invention has made new and useful change to prior art.

Summary of the invention

Substantially, first aspect of the present invention provides:

1. wobbler device with following part:

A) fuselage part;

B) rotatable this fuselage that is installed in is partly gone up and is suitable for being connected to wobbler element on the live axle;

C) rotatable link that is installed on the wobbler;

D) one is installed in and is used for realizing pistons reciprocating in the cylinder that divide to link to each other with main body section; And

E) this piston has the horizontal cross-drilled hole of the cross section of a circle;

F) sliding sleeve is housed in this cross-drilled hole, in sliding sleeve, when link and piston motion (with respect to axle), link participates in sleeve and slides along cross-drilled hole, and therein, sleeve can rotate in cross-drilled hole along its axis, whereby, can obtain near its top dead centre position piston position.

In practice, the wobbler device generally provides together with a supporting live axle, and whereby, rotatablely moving of live axle can be converted to the to-and-fro motion of piston, and vice versa.

The preferred embodiment of invention is by a link that extends transverse to the pin coupling sleeve of cross-drilled hole, obtain the spinning movement in the limited range of pin axis whereby, and, when piston towards and when surpassing its top dead central position, link can be along its concussion campaign of axis elongation line, piston is along the concussion campaign of its axis, and in cross-drilled hole this sleeve rotatablely moving along self axis.

The motion of piston can be described as the twisted-pair cable motion of a sphere.

Second also tangible inventive point provided a relative piston shaft and reached the 22.5 wobbler surfaces of spending to normal, that is to say the plane of a relative piston axis (generally being the axis of wobbler element) 67.5 degree.

Therefore, generally speaking, the invention provides a wobbler device with following part:

A) fuselage part;

B) the rotatable fuselage that is installed in is partly gone up and is suitable for being connected to wobbler element on the live axle;

C) rotatable link that is installed on the wobbler element;

D) reciprocating piston that is installed in the cylinder body that is connected to fuselage;

Therein wobbler provide one be arranged on relative piston axis reach 67.5 the degree planes in spin canting.Device uses above-mentioned two aspects of the present invention preferably, and further, preferred embodiment, piston convergence and do spherical twisted-pair cable motion during away from top dead center and bottom dead central position.

The preferred embodiment of this invention can comprise a reciprocating piston unit, the every end of this piston unit have a Guan Ding and the cross-drilled hole cylinder space radially placed in the middle.

When this invention was used for motor, cylinder head was provided with suitable valve and is fastened by cylinder ends.This invention makes it have under compressive state by using a plurality of links radially to extend to each piston around the axle and obtains higher relatively output power.Give an example, one 6 Cylinder engine can have three pairs of reciprocating pistons, shown in the example in the accompanying drawing.

Can believe that a main performance advantage that obtains according to embodiments of the invention is, can by the associating link rotatablely move and sleeve radially slide the expansion that obtains a top that is positioned at piston and bottom dead central position the position.For reaching this purpose, link links to each other with a suitable rotating dog, and the axis of this rotating dog extends laterally to link, and the relative piston axis of this axis is vertical.At least, preferred embodiment can be described as the twisted-pair cable motion that obtains a sphere and, can believe, can in existing wobbler device, eliminate the tangential component of motion like this.This makes the preferred embodiment of this invention have special efficient, during especially for internal-combustion engine.

The number of degrees that are used for the stop that the mechanical device of piston designs can change according to using, but according to a preferred embodiment of the present invention, and typical internal-combustion engine will have one 10 stop of spending in the 15 degree scopes, and its preferred angle is 12 degree.

The preferred embodiment of invention because the stop cycle of extending can obtain good performance characteristics, shows as, and piston motion and acceleration are pure function (pure side function).

With reference to following accompanying drawing, illustrate with an object lesson:

Description of drawings

Fig. 1 is the part decomposing schematic representation that the six-cylinder engine of this invention is adopted in an expression;

The side-looking exploded view of the device constituent elements shown in Fig. 2 Fig. 1;

Fig. 3 is the three-dimensional exploded view of the composition of parts shown in Fig. 2;

Fig. 4 is the axial sectional view after the component-assembled shown in Fig. 1; And

Fig. 5 be parts shown in Fig. 1 shaft section perspective view from bottom to top.

Embodiment

The explanation preferred embodiment (it have six be combined on the tripod unit three pairs and around the machine axis cylinder body of the layout of symmetry one by one) details before, with reference to figure 4, from Fig. 4, can understand general setting.Center cell among Fig. 4 comprises a rotatably mounted wobbler unit 10, and it is fixed on (not shown) on the live axle.Tripod 11 is rotatable to be installed on the neck 12 of wobbler, this wobbler as shown in Figure 4, swash plate upper and

lower surface

13 and 14 angled (22.5 degree) also has an illustrated grease conduits 15.Tripod 11 has the link of similar connecting rod 16 forms, and this connecting rod 16 generally extends radially outwardly and is installed in the sliding cylinder sleeve 17, and this sleeve slides and rotatable being installed in the piston cross-drilled hole 28.Sleeve is pivotally attached to the center of sleeve by horizontal gudgeon bolt 18.Sleeve 17 has a wall thickness, and this wall thickness reduces towards each end symmetry, and bar 16 and change in angular position between the whole piston unit 19 of sleeve 17 is housed like this can be connected.Piston unit 19 comprises a upper piston 20 and a lower piston 21 that is suitable for cooperating conventional piston ring (not expression in the drawings).

Can see that rotatablely move when driving live axle when the to-and-fro motion of piston is converted to by wobbler, sleeve 17 radially slides in the to-and-fro motion of piston.When piston unit 19 convergences or surpass the top dead central position on a piston head top and during the bottom dead central position on another piston head top, wobbler causes the concussion motion, perhaps, piston is around the concussion campaign of its axis, is accompanied by connecting rod swing and sliding sleeve 17 on it self axis and swings in cross-drilled hole.

Whereby, can realize one make piston extend prior to or the stop of central position, hysteresis dead band.Become the face of angles (relative wobbler unit axis normal direction) of 22.5 degree particularly useful and be to innovate significantly with swash surfaces.

Accompanying drawing comprises Fig. 4, schematically illustrates the structure of motor, has a cylinder group 22, comprise middle cylinder or steam body 23 and

relief cylinder body

24,25 up and down, cylinder block 22 connects fastening with

cylinder head

26,27 usefulness bolts up and down, and junction surface has suitable seal washer sealing to form a closed cylinder.Wobbler is used bearing, but not expression among the figure.These bearings bear axially and radial thrust.

With reference now to Fig. 1,, the tripod 11 of one three arm of diagram, for reaching illustrative purposes, a cylindrical sleeves in this tripod shows that with the form of not inserting sliding device this sliding device is in the cylinder cross-drilled hole (cross-bore) 28 at piston 19B middle part.Fig. 1 gives a plurality of through holes 29 of being used for cylindrical bolt and one and is used for erection bolt center hole 30.

Centre block element 23 comprises a plurality of via holes 31 that are used for oil circulation equally.

Fig. 2 and Fig. 3 can more be clear that constituent element, and particularly the wobbler unit 10.Wobbler unit 10 is to be assembled by two chief components shown in Figure 2, and it comprises a base unit 10A and a top unit 10B.Base unit has a pedestal flange 32, and this flange extends to below the fuselage 33 for being connected to live axle, connects by a central shaft 34 and realizes, on this root axle, bearing 35 has been installed has been used for fixing in a cylindrical center hole 36 of tripod.The end that top unit has a center hole 36 to admit axle 34, and there are last lower thrust-bearing 37 and 38 in each unit.

Claims

1. wobbler device with following part;

A) fuselage part;

B) wobbler is rotatable is installed in the fuselage part and is suitable for being connected to live axle;

C) rotatable link that is installed on this wobbler element;

D) one is installed in reciprocating piston in the cylinder body that is connected to the fuselage part;

E) piston that the cross-drilled hole of circular cross-section is arranged; And

F) sliding sleeve in this cross-drilled hole, in this sliding sleeve, when link and piston move with respect to axle, link participates in realizing that sleeve is along the cross-drilled hole sliding movement, and, sleeve inner can whereby, can obtain the stop of piston around its top dead central position around its axis rotation in cross-drilled hole.

2. wobbler device according to claim 1 is characterized in that: the form of piston is the reciprocating type piston, and there is cylinder cap at its two ends, and described cross-drilled hole is the circular cross section cross-drilled hole of piston center.

3. wobbler device according to claim 1, it is characterized in that: can obtain a plurality of pistons by a link that contains a plurality of link arms, these link arms extend since a central body place, and this central body is rotatable to be installed on the axle of wobbler unit.

4. wobbler device according to claim 2, it is characterized in that: can obtain a plurality of reciprocating pistons by the link that contains a plurality of link arms, these link arms begin to extend from central body, and this central body is rotatable to be installed on the axle of wobbler unit.

5. according to arbitrary described wobbler device in the aforementioned claim, it is characterized in that: this wobbler element has an inclined-plane in relative piston axis extends to 67.5 surfaces of spending.

6. wobbler device according to claim 1 and 2 is characterized in that: the geometrical shape of device feature has realized one at the top of each piston and the stop of supercentral general 12 degree of bottom dead.

7. according to arbitrary described wobbler device in the claim 3 to 5, it is characterized in that: the geometrical shape that device is formed has realized one at the top of each piston and the stop of supercentral general 12 degree of bottom dead.

8. wobbler device according to claim 6 is characterized in that: described geometrical shape has realized a twisted-pair cable motion with respect to the sphere of piston.

9. wobbler device according to claim 7 is characterized in that: described geometrical shape has realized the twisted-pair cable motion of the sphere of piston.

10. according to arbitrary described wobbler device in the aforementioned claim, it is characterized in that: a live axle is connected on the wobbler element.

11. wobbler device that following part is arranged:

A) fuselage part;

C) rotatable link that is installed on the wobbler element;

Wherein, this wobbler element provides one to be positioned at the surface of revolution that relative piston axis becomes the plane of 67.5 degree.

12. a wobbler device 11 is characterized in that: the geometrical shape of composition and realized the stops of general 12 degree on central position, piston head dead band in the Connecting format between link and the piston.

13. want 11 described wobbler devices according to right, it is characterized in that: described geometrical shape has realized that the spherical twisted-pair cable around piston is along the top dead central position moves.