CN85105436B - Engine with four-bar linkage mechanism and swing pistons - Google Patents
Engine with four-bar linkage mechanism and swing pistons Download PDFInfo
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- CN85105436B CN85105436B CN198585105436A CN85105436A CN85105436B CN 85105436 B CN85105436 B CN 85105436B CN 198585105436 A CN198585105436 A CN 198585105436A CN 85105436 A CN85105436 A CN 85105436A CN 85105436 B CN85105436 B CN 85105436B
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- piston
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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Abstract
The present invention relates to an oscillating piston engine which adopts a special shape oscillating piston oscillating around a fixed shaft in a reciprocating mode. A crank shaft is driven by a four-bar mechanism, and valves at both sides are driven by only one camshaft. The present invention adopts a four-stroke cycle process identical with a conventional engine. The present invention has the advantages of compact structure and reliable work, and a plurality of specially designed sealing systems and sealing strip shapes can ensure reliable seal. The external dimension of the main body is one half as big as that of a conventional piston engine with the same type and the same capacity, and the weight is reduced by about 1/3 to 2/5.
Description
The present invention relates to a kind of oscillating piston engine.
In the prior art of this respect, announce a kind of oscillating piston engine (US4106441), its piston is plate shaped double action piston, in sealing system, a part of Stamping Steel Ribbon is arranged on piston, moves with piston, and another part Stamping Steel Ribbon is static.The two sides of this piston is subject to different pressure, temperature alternating load, and the jointing place between the Stamping Steel Ribbon of motion and standstill exists relative movement, and reliability and the sealing effect of piston and sealing system work are all not ideal enough.
Task of the present invention is a kind of novel fourbar linkage oscillating piston engine of design, and it is simple in structure, good airproof performance, reliable operation.
The solution of task of the present invention is: oscillating-piston adopts fan-shaped piston, in order to keep balance, is added with counterweight on piston; Sealing system is made up of rectangular seal bar and at least one annular seal ring of at least one sealing, Stamping Steel Ribbon is arranged in the groove on cylinder wall, be pressed in by the wavy spring in groove on the surface of fan-shaped piston, seal ring set is on piston shaft, be pressed in by cylinder end cap on the end face of oscillating-piston, Stamping Steel Ribbon is not connected mutually with seal ring.The motor good airproof performance of this scheme, reliable operation, simple in structure.
Describe one embodiment of the present of invention in detail by accompanying drawing below.
Fig. 1 engine structure schematic diagram
Fig. 2 engine principles schematic diagram
Fig. 3 sealing system schematic diagram
Fig. 4 sealing strip joint schematic diagram
This oscillating piston engine is mainly by cylinder (22), swing plug (2), bent axle (7), camshaft (10), valve (14), sealing system (19,20) and the composition such as spark plug (21), in Fig. 1, draw a countercylinder (22) the cylinder number that symmetry is arranged on bent axle (7) both sides and also can be cylinder, six cylinders, eight cylinders or more even number cylinder.Oscillating-piston adopts fan piston (2), as a kind of beam type member, the long-range plank frame piston of its section modulus, fan-shaped piston of the present invention is single simultaneously, the load that just one side is born vapour cylinder pressure, board-like plug is the repeated load that two sides is subject to different pressures temperature alternating, and lubricated, the cooling work condition of the fan-shaped piston of the present invention of institute and reliability all show and be better than board-like piston.In order to keep balance, on piston, be added with balancer weight (24).It is the same that the working procedure of this motor and pot type piston formula are started, and can be petrol engine, diesel engine or other fuel combustions, and by stroke cycle, its firing order and balance are equivalent to the motor of ordinary water horizontal twin-tub or same cylinder number.Four mechanism driving that the present invention also adopts, bent axle (7) completely in relatively empty between two cylinders, oscillating-piston (2) swings around piston shaft (1) reciprocating rotary, all circular arcs of track of piston (3), connecting rod bush (4), connecting rod bottom-end bearing (6), thereby what form is inertia couple rather than inertial force, add after counterweight, the vector of first and second grade of inertia couple and centrifugal inertia force is equal to zero, connecting rod (5) swings inertia couple because of opposite direction, size etc., also equal zero, balance is good.Meanwhile, fourbar linkage is only made up of rotation, simple in structure, reliable operation.
The present invention only uses a camshaft (10) to drive both sides valve, and protruding axle axle (10) is positioned at the top of bent axle (7), and the two is parallel to each other; Two row gas (14) are arranged in the both sides of camshaft (10) symmetrically, and exhaust valve (14) flat opposed of every countercylinder shares pair of cams (10a), and its axis cam center is located along the same line; Bent axle (7), by crank teeth axle (13), intermediate gear (12) and timing gear (11) transmission, promotes the valve (14) of both sides by certain phase angle and order.
Owing to adopting fan-shaped piston, be arranged symmetrically with motor mechanisms and distribution device, utilize fully space, so engine structure of the present invention is compact especially, size is little, lightweight, overall volume only quite of the same type, with 1/2nd of cylinder capacity common engine, weight is equivalent to 3/5ths left and right of common engine.This point has the meaning of particular importance for helicopter, tank, vehicle etc.
Cylinder block of the present invention (18) is divided into two-part, and cylinder (22) is connected with bolt with the end cap (27) at two ends; With running through connecting bolt (23), above two parts are connected.There is valve mechanism inspection cover (17) cylinder block (18) top, and there is oil sump (25) below, and transmission device and crankshaft output end lay respectively at motor rear and front end.
Sealing problem, for example, to rotary piston engine (NSU-Wanker motor) not yet satisfactory solution so far.Sealing system of the present invention is made up of rectangular seal bar (20) two-part of at least one seal ring (19) and sealing at least together.Stamping Steel Ribbon (1) is upper, is positioned at the corresponding annular groove of cylinder end face (27), and the cross section of seal ring (19) is also rectangle.Fig. 3 is sealing system schematic diagram, per pass sealing forms sealing rectangle by both ends of the surface Stamping Steel Ribbon, the corresponding right angle overlap joint (seeing Fig. 4) that is mutually of two cylinder strip of paper used for sealings, is compressed and is enclosed on oscillating-piston (2) surrounded surface by the wavy spring in cylinder wall groove (26).As shown in Figure 3, the present embodiment adopts four road sealings, and wherein one by oscillating-piston axle is oil seal bar, and other three road is pneumatic seal; On piston shaft (1a) is seal oil ring, and the present embodiment adopts a seal ring.
Seal element of the present invention is static, there is no the effect of centrifugal inertia force, owing to being subject to the cooling of water jacket, has improved operating conditions; Wavy spring (26) also remains certain elastic force because operating temperature is low.Between oscillating-piston (2) and cylinder (22), due to the existence of Stamping Steel Ribbon (20), seal ring (19), even if also there is trickle gap under hot state, not directly contact, therefore do not rub mutually, also there is no the side pressure of the such countercylinder of common engine, cylinder wall can not wear and tear, and has correspondingly improved mechanical efficiency and the durability of motor.The present invention also can adopt sealings more than four roads to carry out enhanced leaktightness effect successively.
Claims (2)
1. an oscillating piston engine, mainly by cylinder (22), bent axle (7), camshaft (10), valve (14), spark plug (21), the composition such as oscillating-piston and sealing system, feature of the present invention is that oscillating-piston is fan-shaped piston (2), on piston, be added with counterweight (24), sealing system is made up of rectangular seal bar (20) and at least one annulus seal ring (19) of at least one sealing, Stamping Steel Ribbon (20) is arranged in the groove on cylinder wall, be pressed on the surface of oscillating-piston (2) by wavy spring in groove (26), seal ring (19) is enclosed within on piston shaft (1a), be pressed on the end face of oscillating-piston (2) by cylinder end cap (27), Stamping Steel Ribbon (20) is not connected mutually with seal ring (19).
2. according to the said motor of claim 1, it is characterized in that in the complete space between two cylinders of bent axle (7), only drive both sides valve with a camshaft (10), inlet and exhaust valve (14) flat opposed of every countercylinder, share pair of cams (10a), its axis and cam center are located along the same line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN198585105436A CN85105436B (en) | 1985-07-17 | 1985-07-17 | Engine with four-bar linkage mechanism and swing pistons |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN198585105436A CN85105436B (en) | 1985-07-17 | 1985-07-17 | Engine with four-bar linkage mechanism and swing pistons |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN85105436A CN85105436A (en) | 1986-02-10 |
| CN85105436B true CN85105436B (en) | 1987-06-17 |
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ID=4794475
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN198585105436A Expired CN85105436B (en) | 1985-07-17 | 1985-07-17 | Engine with four-bar linkage mechanism and swing pistons |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN85105436B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130228149A1 (en) * | 2012-03-01 | 2013-09-05 | Heping Ma | Rotary Internal Combustion Engine |
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1985
- 1985-07-17 CN CN198585105436A patent/CN85105436B/en not_active Expired
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| Publication number | Publication date |
|---|---|
| CN85105436A (en) | 1986-02-10 |
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