Бесшатунный роторный двигатель

Полезная модель предназначена для использования в двигателестроении и в других отраслях. Двигатель может быть использован в качестве источника механической энергии машин и механизмов наземного, водного и воздушного транспорта, для привода различных промышленных и бытовых агрегатов. Техническим результатом является повышение надежности двигателя. Сущность полезной модели заключается в том, что бесшатунный роторный двигатель содержит корпус 1, в котором расположены цилиндры 2, 3, 4 с камерами сгорания 9 и поршнями и механизм преобразования возвратно-поступательного движения во вращательное. Поршни жестко соединены штоками 11 с валами 13 роликов 14. На корпусе 1 для каждого из цилиндров закреплен контакт зажигания и установлен ротор 5, внутри которого выполнена эллиптическая полость с двумя выступами зажигания 16 и тремя Т-образными эллиптическими канавками 15. Цилиндры 2, 3, 4 своей средней частью закреплены под углом 120° друг к другу на корпусе 1 последовательно вдоль оси ротора 5 и перпендикулярно ...

Ventilator grating

... 884,178. Ventilators. LEX, E. June 19, 1959 [July 7, 1958; Jan. 12, 1959], No. 21078/59. Class 137. A ventilator grating has vertical blades 17 of V-shaped cross-section of which the apices lie in a plane parallel to the lateral planes bounding a frame 5 in which the blades are carried, each blade being fixed within an inserted frame 14 which may be welded to the frame 5. A second row of V-shaped blades, as shown at 18 in Fig. 6 may be situated behind the first row; and an air filter 9 may be secured on the inside of the frame 5. In a modification, Fig. 7, one arm of each blade is approximately at right angles to the lateral planes bounding the frame 5, and a third row of blades 39 is positioned between the blades of the second row. The device will operate to clean air irrespective of the direction of travel of the vehicle on which it is fixed, the cleaning being effected when dust particles accumulate in the spaces 25, 31 of the blades 17, 18 respectively and drop away, e.g. through apertures ...

AIR-COOLED INTERNAL-COMBUSTION ENGINE

Adiabatic, two-stroke cycle engine

Air cooled power machine

RECIPROCATING ROTARY ENGINE

RECIPROCATING ROTARY ENGINE Abstract of Disclosure Rotary engine having a hollow, stationary block with manifolds for air inlet and exhaust valving and means for supplying fuel. The block supports one or more in-line cylinders which are provided with opposed pistons equipped with rigid and constrained piston rods. The rods carry bearings that run along a cam track surface interior . to a disc, the outer surface of which is a right circular cylinder. The surrounding right circular cylinder rotates as a result of the linear movement of the opposed pistons thereby providing mechanical power. The cam surface is a continuous track which determines the out put motion of the piston movement between top and bottom dead center. Arcuate areas at top and/or bottom dead center permit con-stant volume combustion and/or exhaust as desired during a particular cycle, whether that cycle be Otto or Diesel and whether it be two or four stroke.

Zweitaktmotor mit gegenlaufenden Kolben für Fahrzeuge.

Lüftungsgitter für Fahrzeuge

Druckmittelmotor

Internal combustion engine

The internal combustion engine with two opposed pistons (1) per cylinder (2) is intended to essentially improve the efficiency. In cylinders with only one piston the pressure-efficiency in the two limit positions of the piston fluctuates between 40% and 16%. In cylinders with two opposed pistons this figure is 80% to 31%. Since the two pistons each have only to perform half the stroke, the mass motions are also reduced. Due to the essentially improved utilisation of the combustion pressure the overall efficiency of such engines is increased and the fuel consumption thereby reduced. ...

Group for the electric power production.

La presente invenzione si riferisce ad un gruppo per la produzione di energia elettrica (1) che comprende un involucro nel quale sono disposte una prima asta (17a) che porta alle sue estremità opposte un primo ed un terzo pistone (15a, 15c) ed una seconda asta (17b) che porta alle sue estremità opposte un secondo ed un quarto pistone (15b, 5d), il primo pistone delimitando una prima camera di combustione (5a), il secondo pistone delimitando una seconda camera di combustione (5b) ed il terzo ed il quarto pistone delimitando una terza camera di combustione (5c) comune centrale. Ciascuna delle aste (17a, 17b) si muove di moto lineare alternativo e ogni volta il movimento generato dallo scoppio nella camera di combustione delimitata dal pistone ad una sua estremità è frenato dalla compressione nella camera di combustione delimitata dal pistone alla sua estremità opposta. Ciascuna asta è collegata ad un set di bobine/di magneti permanenti (25a, 25b) disposti affacciati a rispettivi set di magneti ...

ДВУХТАКТНЫЙ ОППОЗИТНЫЙ РАДИАЛЬНЫЙ РОТОРНО-ПОРШНЕВОЙ ДВИГАТЕЛЬ

Двухтактный оппозитный роторно-поршневой двигатель содержит блок цилиндров, который имеет гильзу и два поршня, расположенные в ней с возможностью скольжения, которые перемещаются в противоположных направлениях, создавая общую камеру сгорания и первый зазор с боковыми стенками гильзы; причем ротор имеет поверхность, которая описывается эллипсом или линией Кассини; поперечины, прикрепленные к поршням; ролики, прикрепленные к поперечин и пружинами прижатые к ротору; масляные трубки с конечными втулками; средства подачи и отвода масла; два плунжера, расположенные в каждой трубке, создавая второй зазор с боковыми стенками трубки, существенным образом меньший первого зазора. Плунжеры прикреплены к поперечине и могут перемещаться в противоположных направлениях, включая сквозные каналы, причем повернутые наружу поверхности образовывают со втулками внешние пространства, а повернутые вовнутрь поверхности образовывают с боковыми стенками трубки внутреннее пространство, которое соединяется со средствами ...

ДВУХТАКТНЫЙ ОППОЗИТНЫЙ РАДИАЛЬНЫЙ РОТОРНО-ПОРШНЕВОЙ ДВИГАТЕЛЬ

Двухтактный оппозитный роторно-поршневой двигатель содержит блок цилиндров, имеющий гильзу и два поршня, расположенные в ней с возможностью скольжения, перемещающиеся в противоположных направлениях, образующие общую камера сгорания и первый зазор с боковыми стенками гильзы; причём ротор имеет поверхность, описываемую эллипсом или линией Кассини; поперечины, прикрепленные к поршням; ролики, прикрепленные к поперечинам и пружинами прижимаемые к ротору; масляные трубки с концевыми втулками; средства подачи и отвода масла; два плунжера, расположенные в каждой трубке, образующие второй зазор с боковыми стенками трубки, существенно меньший первого зазора. Плунжеры прикреплены к поперечинам и могут перемещаться в противоположных направлениях, включая сквозные каналы, причём обращенные наружу поверхности образуют с втулками наружные пространства, а обращенные вовнутрь поверхности образуют с боковыми стенками трубки внутреннее пространство, сообщающееся со средствами подачи и отвода масла. Средства ...

Petrol engine or diesel

Heat engine e.g. double crankshaft and multi-cylinder two-stroke diesel engine, for e.g. power plant, has pistons whose alternating motion is transformed into rotary motion via mechanism constituted of toothed pinion intermeshed in cage

Moteur thermique alternatif dont le mécanisme de transformation du mouvement est réalisé par la rotation d'un pignon denté excentré dans une cage correspondante, (2) permettant un coulissement sans composante latérale. Le cycle 2 temps est préférentiel mais non exclusif, avec injection de carburant dont diésel. La novation essentielle consiste à monter des soupapes dans les pistons, en particulier pour l'échappement; la surface d'environ 45 % de celle du piston permettant un excellent remplissage et balayage des gaz. La version 2 pistons opposés a un rendement thermodynamique important et est sans culasse, la soupape d'échappement (10) et (11) en 2 parties concentriques sur un des pistons (9), la soupape d'admission (18) sur le piston opposé, les 2 montées traversantes. La versiont 2 pistons en bout de cage nécessite des culasses et 2 cylindres parallèles pour un meilleur équilibrage, mais présente l'avantage de grande compacité.

内燃エンジン

... 本発明は、作動流体を収容するように設計された燃焼室(3)と、上記燃焼室(3)の容積を限定する第1ピストン(4)と、燃焼室(3)に作動流体を供給するために及び/又は作動流体の燃焼に起因する燃焼された流体を燃焼室(3)から排出するために上記第1ピストン(4)の中に設置された第1通路(5)と、上記第1通路(5)の開閉を監視するために第1ピストン(4)の上に取り付けられた第1弁(6)と、出力軸(8)の動きを第1弁(6)の動きに変換するために出力軸(8)及び第1弁(6)が噛み合うことを特徴として、第1ピストン(4)の動きを出力軸(8)の回転運動に変換するために第1ピストン(4)にはまる出力軸(8)と、を含むエンジン(1)に関する。 ...

СИЛОВОЙ МЕХАНИЗМ С ВОЗДУШНЫМ ОХЛАЖДЕНИЕМ

FIELD: mechanical engineering; engines, pumps and compressors. SUBSTANCE: cylinder of each above-indicated machine needs cooling. If engine is used as power unit of gases cutters or mechanical saws, air cooling should be employed as water cooling cannot be practically provided. Holes or channels for cooling air are provided in rotating and stationary disks, thanks to which cooling of engine cylinder is effected. Flanges made on external surface of cylinder improved its cooling additionally. In other design versions, connectors between rotating disk and output shaft are made of shape to operate as fan blades and provide required air flow. EFFECT: improved reliability, provision of long service life. 5 cl, 5 dwg

Исполнительный механизм поршневого компрессора

Полезная модель относится к области поршневых машин объемного вытеснения и может быть использована при создании исполнительных механизмов компрессоров, работающих за счет изменения объема рабочей полости. Исполнительный механизм поршневого компрессора содержит зубчатый сектор, поршни, жестко связанные между собой зубчатой рейкой, соединенной через зубчатую передачу с зубчатым сектором, а также цилиндры, в которых установлены нагнетательные и всасывающие клапаны. Исполнительный механизм также содержит корпус, в котором соосно установлены входной и выходной валы, неподвижное эллиптическое зубчатое колесо, жестко закрепленное на корпусе соосно входному валу, эллиптическое зубчатое колесо, установленное на выходном валу, при этом зубчатый сектор жестко закреплен на выходном валу и спроектирован таким образом, чтобы центр масс системы звеньев, включающей эллиптическое зубчатое колесо на выходном валу, выходной вал и зубчатый сектор, лежал на оси вращения выходного вала. На входном валу установлено ...

PRESSURIZED MEDIUM MOTOR

... 1328656 Fluid reciprocating motors DICKERTMANN HEBEZEUGFABRIK A G Gebr 6 Nov 1970 [11 Nov 1969] 52867/70 Heading F1A F1M In a fluid motor wherein a driven housing 10 encloses stationary piston and cylinder units 11..14 pivotally mounted in bearing rings 25a, 25b and the piston and cylinder units act on eccentric drive means 15..18 geared to the housing 10, the piston and cylinder units 11..14 are arranged to form a polygon of constant circumference with varying side length and are sequentially supplied with pressure fluid e.g. liquid or air. Main pressure fluid supply and exhaust lines 21, 22 terminate in annular grooves 36, 37 in permanent communication with inclined ducts 34, 35 in the bearing ring 25b. During drive pivotal movement of the cylinder blocks 23 selectively connects supply and exhaust passages 19, 20 with the ducts 34, 35. When pressure fluid is supplied to a cylinder block 23 the associated pistons 27 are moved apart and act on eccentric pins 30 to rotate associated gears ...

Power coupling for free piston mover

ДВИГАТЕЛЬ ВНУТРЕННЕГО СГОРАНИЯ

Изобретение относится к двигателю (1) внутреннего сгорания, содержащему камеру (3), выполненную с возможностью принимать рабочую текучую среду, первый поршень (4), ограничивающий объем камеры (3), первый проход (5), выполненный в первом поршне (4) для подачи в камеру (3) рабочей текучей среды и/или для удаления из камеры (3) текучей среды, сгоревшей в результате сгорания рабочей текучей среды, первый клапан (6), установленный на первом поршне (4) для управления открытием и закрытием первого прохода (5), выходной вал (8), взаимодействующий с первым поршнем (4) для преобразования движения первого поршня (4) во вращательное движение выходного вала (8), отличающемуся тем, что выходной вал (8) и первый клапан (6) взаимодействуют для преобразования вращательного движения выходного вала (8) в движение первого клапана (6).

Piston cooling configurations utilizing lubricating oil from a bearing reservoir in an opposed-piston engine

Improved opposed piston engine

RECIPROCATING PISTON AND BAG WHICH HEAT ENGINE, PNEUMATIC, AND RECOVERING PNEUMATIC POWER HYBRID

Ce piston femelle tous temps moteur est caractérisé par plusieurs particularités majeures innovantes qui lui permettent de réaliser un moteur produisant un temps moteur pour chaque mouvement de piston c'est-à-dire deux temps moteurs par tour. Une première de ces particularités réside dans le fondement même de son fonctionnement qui conduit à ce que contrairement à tous les moteurs et compresseurs existants, son piston (PF) constitué de deux fois quatre cylindres creux juxtaposés et opposés par un plan médian (PM) (C1)(C'1)(C2)(C'2)(C3)(C'3)(C4)(C'4), constituant des chambres d'admission-compression (CHA1) (CHA2), chambres de réserve de pression (CHP1) (CHP2), chambres motrices (CHM1) (CHM2) et chambres d'extraction-échappement (CHE1) (CHE2), ne circule pas à l'intérieur d'un espace creux généralement appelé bloc culasse mais coulisse à l'extérieur et en recouvrant des éléments de culasses fixes (CUA1) (CUA2) (CUP1)(CUP2)(CUM1)(CUM2)(CUE1)(CUE2) solidaires d'un châssis moteur (CM), animé par un vilebrequin (VB) et une bielle (BL). Les soupapes traditionnelles sont remplacées par des bagues mobiles (BGA) (BGE) animées à l'intérieur de la chambre motrice (CHM1) (CHM2) la lubrification est assurée automatiquement par le mouvement alternatif du piston (PF). This female all-stroke engine piston is characterized by several major innovative features that allow it to achieve a motor producing a driving time for each piston movement that is to say two engine times per lap. A first of these features lies in the very foundation of its operation which leads to the fact that unlike all existing engines and compressors, its piston (PF) consists of two four hollow cylinders juxtaposed and opposed by a median plane (PM) ( C1) (C'1) (C2) (C'2) (C3) (C'3) (C4) (C'4), constituting intake-compression chambers (CHA1) (CHA2), reserve chambers pressure (CHP1) (CHP2), drive chambers (CHM1) (CHM2) and exhaust-exhaust chambers ( ...

COMBUSTION CHAMBER CONSTRUCTION FOR OPPOSED-PISTON ENGINES

An opposed-piston engine includes a ported cylinder and a pair of pistons disposed to reciprocate in the bore of the cylinder. A combustion chamber is defined by opposing shaped piston end surfaces as the pistons approach respective top dead center (TDC) locations in the bore. At the end of scavenging, the shaped end surfaces of the pistons interact with swirl to produce turbulence in the charge air motion in the combustion chamber; the additional bulk motions include tumble. Fuel is injected into the turbulent charge air motion along a major axis, of the combustion chamber.

PRESSURIZED MEDIUM MOTOR

Opposed, free-piston engine

An opposed, free-piston engine includes a pair of adjacent cylinders, each extending from a first cylinder end to a second cylinder end along an elongate axis and having a first cylinder housing a first pair of opposed, free pistons including a first piston housed towards the first cylinder end and a second piston housed towards the second cylinder end; a second cylinder housing a second pair of opposed, free pistons having a third piston and a fourth piston; and a pair of link rods including a first link rod and a second link rod. The first link rod has a first link rod end and a second link rod end, the second link rod having a third link rod end and a fourth link rod end.

ЛИНЕЙНЫЙ ДВИГАТЕЛЬ ВНУТРЕННЕГО СГОРАНИЯ С ВЫСОКИМ КПД

FIELD: engines and pumps. SUBSTANCE: invention relates to free-piston ICEs. This invention discloses the linear ICE including the cylinder with its wall and two ends. Note here that the cylinder has the combustion chamber, two opposed piston assemblies adapted for reciprocation inside the cylinder. Note here that every piston assembly is located on one side of combustion chamber, opposite the other piston assembly. Every piston assembly comprises spring-loaded rod and piston comprising the solid front part abutting on said combustion chamber and pneumatic section. Two linear two linear electromagnetic machines are adapted for direct conversion of the piston assembly kinetic energy into electric power and for direct conversion of electric power into kinetic energy of the piston assembly to perform the compression work at compression stroke. EFFECT: higher degree of compression/expansion strokes and efficiency. 30 cl, 20 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (51) МПК F02B 71/00 (11) (13) 2 577 425 C2 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ 2013127022/06, 17.11.2011 (21)(22) Заявка: (24) Дата начала отсчета срока действия патента: 17.11.2011 Приоритет(ы): (30) Конвенционный приоритет: US US US US (73) Патентообладатель(и): ИТАДЖЕН, ИНК. (US) 12/953,277; 12/953,270; 13/102,916; 13/298,206 (45) Опубликовано: 20.03.2016 Бюл. № 8 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 24.06.2013 C 2 C 2 (56) Список документов, цитированных в отчете о поиске: DE 102007056527 A1, 20.05.2009. US 2009/0125211 A1, 14.05.2009. US 6863507 B1, 08.03.2005. SU 1728515 A1, 23.04.1992. RU 99072 U1, 10.11.2010. (86) Заявка PCT: US 2011/061145 (17.11.2011) 2 5 7 7 4 2 5 (87) Публикация заявки PCT: R U 2 5 7 7 4 2 5 (43) Дата публикации заявки: 27.12.2014 Бюл. № 36 R U 23.11.2010 23.11.2010 06.05.2011 16.11.2011 (72) Автор(ы): СИМПСОН Адам (US), МИЛЛЕР Шэннон (US), СВРСЕК Мэтт (US) WO 2012/071239 (31.05.2012) Адрес для ...

Свободнопоршневой двигатель внутреннего сгорания (варианты)

Two stroke-horizontally opposed piston engine e.g. air suction petrol engine, has suction valves connecting/locking combustion chamber with channels or exchange chambers, and outlet valves arranged in half cylinders above piston base

The engine has overflow channels (UK) or heat exchange chambers surrounding a whole combustion chamber (B) for forming a unit chamber by empty spaces of double-walled half cylinders (Z) and a valve block (VB). Each channel and heat exchange chamber represent a composite area between the combustion chamber and lower piston spaces. Suction valves are arranged around center of the valve block. The suction valves connect/lock the combustion chamber with the channels or exchange chambers. Outlet valves are arranged in the half cylinders approximately above a piston base in a UT-position. An independent claim is also included for a method of operating a two stroke-horizontally opposed piston engine.

Opposed stepped piston engine power cylinder lubrication system

SYNCHRONIZER

Reciprocating engine

A reciprocating engine having a fixed body and at least one rotating and reciprocating member. The engine also has at least one combustion chamber, and the or each combustion chamber is defined between at least a fixed member connected to the fixed body and at least one rotating and reciprocating member. The or each rotating and reciprocating member is coupled to the fixed body in such a manner that reciprocating motion of the or each rotating and reciprocating member produces rotation of the or each rotating and reciprocating member. The or each rotating and reciprocating member is coupled to an output shaft in such a manner that the rotational motion only of the or each rotating and reciprocating member is transferred to the output shaft.

HIGH-EFFICIENCY LINEAR COMBUSTION ENGINE

Various embodiments of the present invention are directed toward a linear combustion engine, comprising: a cylinder having a cylinder wall and a pair of ends, the cylinder including a combustion section disposed in a center portion of the cylinder; a pair of opposed piston assemblies adapted to move linearly within the cylinder, each piston assembly disposed on one side of the combustion section opposite the other piston assembly, each piston assembly including a spring rod and a piston comprising a solid front section adjacent the combustion section and a gas section; and a pair of linear electromagnetic machines adapted to directly convert kinetic energy of the piston assembly into electrical energy, and adapted to directly convert electrical energy into kinetic energy of the piston assembly for providing compression work during the compression stroke.

Mechanical energy engine

The invention discloses a mechanical energy engine which comprises a cylinder body with an oval cylindrical channel, pistons, a piston shaft, a piston sliding ring, a flywheel, a belt wheel, a journal base, crank shafts, synchronous gears, a gear shaft, springs, connecting rods and a transmission rod. The piston sliding ring is matched with the inner periphery wall face of the cylindrical channel in a movable-sealing mode. The two piston are connected through the paired connecting rods, two end rod bodies of either connecting rod penetrate into corresponding piston bodies respectively through a piston back side end face, so that a gap is reserved between the two pistons, a middle rod body, placed between the two pistons, of either connecting rod is fixedly provided with each spring which is arranged outside each piston, the end rod body, penetrating into the corresponding piston, of either connecting rod is fixedly provided with each spring which is placed inside the corresponding piston ...

For no mechanical supercharger of EGR of the two-stroke cycle engine

PRESSURIZED MEDIUM MOTOR

FUEL INJECTION SPRAY PATTERNS FOR OPPOSED-PISTON ENGINES

A combustion chamber for an opposed-piston engine includes a squish zone defined between circumferential peripheral areas of opposing end surfaces of the pistons, a cavity defined by one or more bowls in the end surfaces, and at least one injection port that extends radially through the squish zone into the cavity. The cavity has a cross-sectional shape that imposes a tumbling motion on air flowing from the squish zone into the cavity. Opposing spray patterns of fuel are injected into the combustion chamber. In some aspects, the opposing spray patterns are injected along a major axis of the combustion chamber.

Exhaust Management Strategies For Opposed-Piston, Two-Stroke Engines

Exhaust temperature management strategies for an opposed-piston, two-stroke engine with EGR are based on control of a ratio of the mass of fresh air and external EGR delivered to a cylinder to the mass of the trapped charge (density of the delivered charge multiplied by the trapped volume at port closing).

TWO-STROKE OPPOSITE RADIAL ROTARY-PISTON ENGINE

POWER COUPLING FOR FREE PISTON MOVER

Двигатель внутреннего сгорания

Полезная модель относится к двигателям внутреннего сгорания. Сущность полезной модели: двигатель состоит из секций, каждая из которых содержит: цилиндр 1, в стенках которого прорезаны окна для впуска топливовоздушной смеси или воздуха 2 и выпуска отработанных газов 3. Внутри цилиндра расположены оппозитные поршни 4 и 5, образующие единую камеру сгорания, совершающие движения, обеспечивающие впуск топливовоздушной смеси, ее сжатие, рабочий ход и выпуск продуктов горения, составляющих четырехтактный рабочий цикл. Движение поршней по заданной траектории обеспечивается планетарным механизмом внешнего зацепления. В данном двигателе не используется газораспределительный механизм, что позволяет существенно увеличить скорость вращения двигателя и соответственно повысить его мощность. 1 з.п. ф-лы, 2 ил.

МЕХАНИЗМ ПРЕОБРАЗОВАНИЯ ДВИЖЕНИЯ ДЛЯ ПОРШНЕВОЙ МАШИНЫ

FIELD: machine building. SUBSTANCE: invention refers to machine building, particularly, to mechanisms of conversion of motion. Mechanism of transformation of motion for a piston machine contains a main crankshaft with a Chebyshev's mechanism, at least two coaxially located cylinders with pistons installed in them. Chebyshev's mechanism is formed by the knee of the shaft, a swinging rocker and a connecting rod, which is an isosceles triangle with hinges fixed at the tops. One of the hinges is connected to the crankpin of the crankshaft, the second to the rocker arm, and the third one is connected to one of the pistons. In this case, the movement transformation mechanism contains an additional crankshaft with a Chebyshev mechanism connected by a rod to a second piston, the main and additional crankshafts are interconnected by a gear transmission providing rotation of the shafts in opposite directions with an equal angular velocity. EFFECT: reduction of wear is achieved. 3 cl, 2 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 658 209 C1 (51) МПК F16H 21/10 (2006.01) F01B 7/02 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК F16H 21/10 (2006.01); F01B 7/02 (2006.01) (21)(22) Заявка: 2017124430, 11.07.2017 (24) Дата начала отсчета срока действия патента: (73) Патентообладатель(и): Шитов Василий Иванович (RU), Жарков Владимир Николаевич (RU) Дата регистрации: 19.06.2018 (56) Список документов, цитированных в отчете о поиске: SU 1539328 A1, 30.01.1990. RU (45) Опубликовано: 19.06.2018 Бюл. № 17 2 6 5 8 2 0 9 R U (54) МЕХАНИЗМ ПРЕОБРАЗОВАНИЯ ДВИЖЕНИЯ ДЛЯ ПОРШНЕВОЙ МАШИНЫ (57) Реферат: Изобретение относится к области соединен с шатунной шейкой коленчатого вала, машиностроения, в частности к механизмам второй – с качающимся коромыслом, а третий преобразования движения. Механизм связан с одним из поршней. При этом механизм преобразования движения для поршневой преобразования движения содержит машины содержит ...

IC engine operable on Otto or Diesel cycles - has opposed pistons working in single cylinder and coupled to respective crankshafts

The engine can operate according to the Otto or to the Diesel principle. As two pistons are mounted in a cylinder at either side of a combustion chamber, the pressure which is normally exerted on one piston, is now exerted on two pistons. Each piston rotates a crankshaft, one being mounted at each end of the cylinder. The two crankshafts are connected together by gear drives, chains or other transmissions. The cylinder is mounted in a housing which is divided over the centre of the cylinder.

Seal for use in sliding sleeves to control gas exchange in counter-piston engines, has valve seat surface divided into two patches, where one of patches performs force-effective opening of sleeve and other patch effectively closes sleeve

The seal has a valve seat surface divided into two patches with different functions. One of the patches performs force-effective opening of a sliding sleeve, and the other patch effectively closes the sliding sleeve while increasing overall carrying surface. The patches are separated from each other by using a relief groove. A sealing part penetrating gas is exhausted by using the patches in a pressure-less manner such that the patches exert no-force on a basic part of the valve seat surface. The gas is exhausted through the grooves.

Opposed piston engine having injector located within cylinder

Combined heat and power

Power coupling for free piston mover

A linear electromechanical system comprises a stator 5 having first and second electronic circuits 35 in which current is independently controlled by respective switching devices 36; and a free piston mover 3 having a piston surface and a translator to which electromagnetic force can be applied by the stator circuits. An electronic circuit in the translator receives power from at least one of the stator circuits 35 during at least part of the stroke of the free piston mover. The switching devices can be actuated by a controller (37, fig 7) to power an electrical device in the translator by the received power, such as: an accelerometer; a temperature, pressure, optical, acoustic or ionic sensor 27; a wireless transmitter; a combustion initiation spark means 25; an energy store such as a battery or capacitor (22, fig 3); or an analogue or digital signal processor. The system can also have: a position encoder; a wireless signal receiver; a voltage sensor; and a sensor controller.

Argument engine

INTERNAL COMBUSTION ENGINE

The invention provides an internal combustion engine comprising a piston mounted for reciprocating linear motion within a cylinder along a cylinder axis. The piston is coupled to an output shaft by a power transfer assembly arranged to convert linear motion of the piston to rotary motion of the output shaft. The piston has a first head moveable within a first chamber and a second head opposite the first head and moveable within a second chamber. The power transfer assembly has a lubrication system for lubricating moving components of the power transfer assembly. The lubrication system is sealed from the first chamber and the second chamber to prevent the passage of fluid from the lubrication system into the first chamber and the second chamber.

AIR COOLED POWER MACHINE

The present invention is for the kind of power machine, engines, pumps or compressors which have two or more pistons which work against each other preferably with a common combustion space or corresponding in a stationary cylinder, and where the power is transmitted to or from a rotating motion without an intermediate crankshaft. Independent of whether the machine works as engine, pump or compressor there is a need to cool the cylinder. For applications such as engines for lawn-mowers and power saws the engines must be air-cooled as in practice it is not possible to arrange a water-cooling system. Cooling of the cylinder is obtained by that holes or channels (30, 31) are arranged both in the rotating and the stationary discs and cooling air is made to flow through these channels. In order to further improve the cooling the outside of the cylinder may have flanges. In other embodiments of the invention the connecting means between the rotating disc and the outgoing shaft are so shaped that they also function as fan blades (34-35) and cause a desired air flow.

Opposed piston engine with non-collinear axes of translation

一种对置活塞内燃机，其可以包括两个对置活塞(104、110)，所述对置活塞(104、110)沿着各自的非共线平移轴(202、204)往复运动。第一和第二气缸孔(502、504)可以以一定夹角(a)彼此倾斜。燃烧容积或燃烧室(114)可以至少部分地通过所述第一和第二活塞(104、110)的活塞顶(102、106)选择性界定，所述第一和第二活塞(104、110)在所述第一和第二气缸孔(502、504)内各自作往复运动。本发明描述了相关的方法、系统和制品。

Exhaust management strategies for opposed-piston, two-stroke engines

Exhaust temperature management strategies for an opposed-piston, two-stroke engine with EGR are based on control of a ratio of the mass of fresh air and external EGR delivered to a cylinder to the mass of the trapped charge (density of the delivered charge multiplied by the trapped volume at port closing).

Improvements brought to the hydraulic pumps

Thermal engine with prolonged expansion

ROTATING CYLINDER ENGINE

PISTON ENGINE FOR GENERATING COMBINED HEAT AND POWER

An apparatus is provided for generation of combined heat and power comprising an engine configured in a free-piston arrangement comprising two opposed pistons arranged in an elongated cylinder having at least one inlet port and at least one outlet port with uniflow scavenging, an electricity generator, means for harnessing heat and means for transmitting load from the engine to the electricity generator. The engine is configured to operate at close to constant volume combustion, high compression ratio, a lean fuel to air ratio and uses homogeneous charge compression ignition. The engine further comprises a synchronising mechanical or hydraulic linkage between said two opposed pistons. A method for generating combined heat and power and a method for configuring apparatus for generating combined heat and power are also provided.

Direct torque control, piston engine

A piston engine is provided; the piston engine has a cylinder, a main piston and an auxiliary piston, a combustion chamber is formed between the main piston and the auxiliary piston within the cylinder, the auxiliary piston moves in different frequency along it centerline, a plateau is formed near TDC position of the combustion chamber volume V, there is a preferable PPP in each configuration of the piston, when the combustion peak pressure is at the position of preferable PPP position, the best torque is achieved. Different piston configurations, different ignition timings, dynamic energy recovery and storage are also provided in the invention.

Свободнопоршневой двигатель внутреннего сгорания (варианты)

FIELD: machine building.SUBSTANCE: invention relates to linear internal combustion engines. Free-piston internal combustion engine, which comprises a first cylinder, comprising a combustion section, a second cylinder, comprising a drive section configured to provide compression operation during an engine compression stroke, piston assembly located between combustion section and drive section, wherein piston assembly is made with possibility of rectilinear movement, and a linear electromagnetic machine located between said cylinders and configured to directly convert the kinetic energy of the piston assembly to electrical energy and with possibility of direct conversion of electric energy into kinetic energy of piston assembly. Proposed engine is configured to work with compression ignition. There are offered several embodiments of free-piston internal combustion engine design.EFFECT: higher efficiency of engine due to higher degree of compression.28 cl, 1 tbl, 20 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 711 803 C2 (51) МПК F02B 71/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК F02B 71/02 (2019.08) (21)(22) Заявка: 2016103092, 17.11.2011 (24) Дата начала отсчета срока действия патента: Дата регистрации: (73) Патентообладатель(и): ИТАДЖЕН, ИНК. (US) 23.01.2020 23.11.2010 US 12/953,277; 23.11.2010 US 12/953,270; 06.05.2011 US 13/102,916; 16.11.2011 US 13/298,206 Номер и дата приоритета первоначальной заявки, из которой данная заявка выделена: 2013127022 23.11.2010 (56) Список документов, цитированных в отчете о поиске: US 4876991 A, 31.10.1989. US 5030182 A, 09.07.1991. RU 2045666 C1, 10.10.1995. SU 1728515 A1, 23.04.1992. GB 1392827 A, 30.04.1975. 2 7 1 1 8 0 3 Приоритет(ы): (30) Конвенционный приоритет: R U 17.11.2011 (72) Автор(ы): СИМПСОН Адам (US), МИЛЛЕР Шэннон (US), СВРСЕК Мэтт (US) 2 7 1 1 8 0 3 R U (45) Опубликовано: 23.01.2020 Бюл. № 3 C 2 C 2 (43) Дата публикации заявки: 22.11.2018 Бюл. № 33 ...

Зубчатый исполнительный механизм двигателя внутреннего сгорания

Полезная модель относится к машиностроению, а именно к поршневым двигателям внутреннего сгорания с циклическим характером работы, с поршнем, совершающим возвратно-поступательное движение. Зубчатый исполнительный механизм двигателя внутреннего сгорания содержит корпус, цилиндр с впускными и выпускными клапанами, поршень, зубчатую рейку, соединенную зубчатой передачей с зубчатым сектором. Кроме того, механизм дополнительно содержит цилиндр с впускными и выпускными клапанами, поршень на втором конце зубчатой рейки, а также вторую пару поршней, жестко связанных между собой второй зубчатой рейкой, соединенной через зубчатую передачу с зубчатым сектором, вторую пару цилиндров с впускными и выпускными клапанами, причем в корпусе механизма соосно установлены входной вал и выходной вал двигателя, неподвижное эллиптическое зубчатое колесо, жестко закрепленное на корпусе соосно выходному валу, эллиптическое зубчатое колесо, установленное на входном валу, при этом зубчатый сектор жестко закреплен на ...

Бесшатунный роторный двигатель

FIELD: engine building. SUBSTANCE: invention can be used in engine building. Conrod-free rotary engine comprises housing (1), in which cylinders (2), (3), (4) with combustion chambers (9) and pistons (7), (8) and a mechanism for conversion of reciprocating motion into rotary motion are located. Pistons (7), (8) are rigidly connected by rods (11) with shafts (13) of rollers (14). On housing (1) for each of cylinders (2), (3), (4) ignition contact (6) is fixed and rotor (5) is installed. Inside rotor (5) there is an elliptic cavity with two ledges (16) of ignition and three T-shaped elliptical grooves (15). Cylinders (2), (3), (4) with their middle part are fixed at angle of 120° to each other on body (1) in series along axis of rotor (5) and perpendicular to axis of rotor (5). Every cylinder (2), (3), (4) comprises two pistons (7), (8), one combustion chamber (9) and spark plug. On each piston (7), (8) two parallel rods (11) are fixed, free ends of which are moved outside housing (1) through two linear bearings (12). On opposite ends of rods (11) shaft (13) with two rollers (14) is fixed. To supply voltage to ignition plug ignition projection (16) closes contact (6) of ignition. EFFECT: technical result consists in improvement of engine reliability. 1 cl, 2 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 737 467 C1 (51) МПК F02B 75/32 (2006.01) F02B 75/28 (2006.01) F01B 9/06 (2006.01) F01B 7/02 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК F02B 75/32 (2020.08); F02B 75/28 (2020.08); F01B 9/06 (2020.08); F01B 7/02 (2020.08) (21)(22) Заявка: 2020118589, 27.05.2020 (24) Дата начала отсчета срока действия патента: 30.11.2020 Приоритет(ы): (22) Дата подачи заявки: 27.05.2020 (45) Опубликовано: 30.11.2020 Бюл. № 34 2 7 3 7 4 6 7 R U (54) Бесшатунный роторный двигатель (57) Реферат: Изобретение может быть использовано в двигателестроении. Бесшатунный роторный двигатель содержит корпус (1), в котором расположены ...

INTERNAL COMBUSTION ENGINE

Cam piston two-stage compressor

... 904,820. Compressors. GARRETT CORPORATION. Jan. 18, 1960 [Jan. 19, 1959], No. 1805/60. Class 8(1). A two stage, reciprocating compressor has pistons 10, 11 mounted on and, engaged with, a central driving shaft 32, positive rotary drive being provided by balls 46 in splined grooves, allowing the pistons 10 and 11 limited axial movement. The pistons 10 and 11 have helical cam grooves 16 and 17 which engage with cams 18 and 20 secured to the body of the compressor such that when the driving shaft 32 rotates the two pistons 10 and 11 reciprocate in antiphase with each other; the space 75 between them acting as the first compressive stage and the space 76 on the remote side of the smaller piston 11 acting as the second compressive stage. As the pistons 10 and 11 move apart the suction created in the space 75 opens the check valve 72 on the piston 10 and draws in air from the atmosphere by way of the filtered inlet 77 and the channels 78 in the piston 10. During the compression stroke, as the ...

HIGH-EFFICIENCY LINEAR COMBUSTION ENGINE

Various embodiments of the present invention are directed toward a linear combustion engine, comprising: a cylinder having a cylinder wall and a pair of ends, the cylinder including a combustion section disposed in a center portion of the cylinder; a pair of opposed piston assemblies adapted to move linearly within the cylinder, each piston assembly disposed on one side of the combustion section opposite the other piston assembly, each piston assembly including a spring rod and a piston comprising a solid front section adjacent the combustion section and a gas section; and a pair of linear electromagnetic machines adapted to directly convert kinetic energy of the piston assembly into electrical energy, and adapted to directly convert electrical energy into kinetic energy of the piston assembly for providing compression work during the compression stroke.

Rotary piston machine

INTERNAL COMBUSTION ENGINES

Exhaust management strategies for opposed-piston, two-stroke engines

Exhaust temperature management strategies for an opposed-piston, two-stroke engine with EGR are based on control of a ratio of the mass of fresh air and external EGR delivered to a cylinder to the mass of the trapped charge (density of the delivered charge multiplied by the trapped volume at port closing).

Combustion chamber construction with dual mixing regions for opposed-piston engines

A combustion chamber construction for opposed-piston engines in which fuel is injected from two opposed injectors includes a dual mixing region construction with a respective mixing region for each injector and a coupling region between the two mixing regions through which the mixing regions communicate. In some aspects, the mixing regions are bulbous and are connected by a waist, or tunnel, region that is relatively narrower than the bulbous mixing chambers.

COMBUSTION CHAMBER CONSTRUCTIONS FOR OPPOSED-PISTON ENGINES

ПОРШНЕВОЙ ДВИГАТЕЛЬ

РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2016 141 114 A (51) МПК F02B 59/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2016141114, 16.04.2015 (71) Заявитель(и): ШЕПАРД ИНВЕНТОР ЛИМИТЕД (NZ) Приоритет(ы): (30) Конвенционный приоритет: (72) Автор(ы): ШЕПАРД Грейдон Обри (NZ) 16.04.2014 NZ 623935; 03.12.2014 NZ 702580 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 16.11.2016 NZ 2015/000029 (16.04.2015) (87) Публикация заявки PCT: WO 2015/160267 (22.10.2015) A Адрес для переписки: 190000, Санкт-Петербург, BOX-1125, "ПАТЕНТИКА" R U (57) Формула изобретения 1. Поршневой двигатель (11) внутреннего сгорания/имеющий по меньшей мере один цилиндр (41), выходной вал (21), расположенный соосно с цилиндром, и по меньшей мере один вращательный возвратно-поступательный элемент (19), выполненный с возможностью возвратно-поступательного движения и приведения выходного вала во вращение, и причем указанный или каждый вращательный возвратно-поступательный элемент соединен с выходным валом посредством скользящего соединения, что обеспечивает возможность возвратно-поступательного движения вращательного возвратнопоступательного элемента соосно с продольной осью выходного вала при одновременном недопущении вращения вращательного возвратнопоступательного элемента вокруг выходного вала или относительно него. 2. Поршневой двигатель внутреннего сгорания по п. 1, в котором выходной вал проходит через указанный или каждый вращательный возвратнопоступательный элемент. 3. Поршневой двигатель внутреннего сгорания по п. 1 или 2, в котором возвратно-поступательное движение указанного или каждого вращательного возвратно-поступательного элемента преобразуется во вращательное движение вращательного возвратно-поступательного элемента посредством взаимодействия между по меньшей мере одним концевым кулачком (31) и по меньшей мере одним Стр.: 1 A 2 0 1 6 1 4 1 1 1 4 (54) ПОРШНЕВОЙ ДВИГАТЕЛЬ 2 0 1 6 1 4 1 1 1 4 (86) Заявка PCT: R U ...

ЛИНЕЙНЫЙ ДВИГАТЕЛЬ ВНУТРЕННЕГО СГОРАНИЯ С ВЫСОКИМ КПД

... 1. Линейный двигатель внутреннего сгорания, содержащий:по меньшей мере один цилиндр, содержащий секцию сгорания и приводную секцию;поршневой узел, приспособленный для прямолинейного перемещения, причем поршневой узел содержит поршень внутри по меньшей мере одного цилиндра между верхней мертвой точкой и нижней мертвой точкой, создавая степень расширения по меньшей мере 50:1, где поршень приспособлен соприкасаться с секцией сгорания и где длина секции сгорания находится в диапазоне 0,1-2 дюйма, когда поршень находится в верхней мертвой точке;преобразователь, приспособленный для перемещения с поршневым узлом; истатор, приспособленный для преобразования кинетической энергии поршневого узла в электрическую энергию на основе взаимного перемещения преобразователя.2. Линейный двигатель внутреннего сгорания по п.1, отличающийся тем, что поршневой узел является свободным поршневым узлом.3. Линейный двигатель внутреннего сгорания по п.1, отличающийся тем, что поршневой узел дополнительно содержит: ...

Cвободнопоршневой линейный двигатель и узел, содержащий цилиндр (варианты)

РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2020 100 897 A (51) МПК F02B 71/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2020100897, 14.01.2020 (71) Заявитель(и): Мэйнспринг Энерджи, Инк. (US) Приоритет(ы): (30) Конвенционный приоритет: (72) Автор(ы): СИМПСОН Адам (US), МИЛЛЕР Шэннон (US), СВРСЕК Мэтт (US) Адрес для переписки: 191036, Санкт-Петербург, а/я 24, "НЕВИНПАТ" R U (57) Формула изобретения 1. Узел, содержащий: цилиндр, содержащий: секцию сжатия, находящуюся в контакте с передней стороной поршня сжатия, и заднюю секцию, находящуюся в контакте с задней стороной поршня сжатия, по меньшей мере один впускной канал, соединенный с цилиндром, по меньшей мере один выпускной канал, соединенный с цилиндром, объем для пневматической пружины, который содержит пневматическую пружину, отдельную от цилиндра и содержащую газ, поршневой узел, содержащий: указанный поршень сжатия, выполненный с возможностью прямолинейного перемещения в указанном цилиндре, поршень пневматической пружины, выполненный с возможностью прямолинейного перемещения в указанном объеме для пневматической пружины, шток поршня, соединяющий поршень сжатия с поршнем пневматической пружины, пневматическую опору, по которой перемещается шток поршня, и линейную электромагнитную машину (ЛЭМ), выполненную с возможностью преобразования кинетической энергии поршневого узла в электрическую энергию и преобразования электрической энергии в кинетическую энергию поршневого узла, причем пневматическая пружина выполнена с возможностью преобразования кинетической энергии поршневого узла в энергию, аккумулируемую в газе, и преобразования энергии, аккумулированной в газе, в кинетическую энергию поршневого Стр.: 1 A 2 0 2 0 1 0 0 8 9 7 A (54) Cвободнопоршневой линейный двигатель и узел, содержащий цилиндр (варианты) 2 0 2 0 1 0 0 8 9 7 (43) Дата публикации заявки: 14.07.2021 Бюл. № 20 R U 23.11.2010 US 12/953,277; 23.11.2010 US 12/953,270; 06.05.2011 US 13/102,916; ...

Motor mit innerer Verbrennung

Motor mit innerer Verbrennung (10), der aufweist: mindestens einen Zylinder (12); ein Paar gegenüberliegender, sich hin- und herbewegender Kolben (16, 18) in dem Zylinder (12), die eine Brennkammer (28) zwischen sich bilden; eine an einem Ende des Zylinders (12) angeordnete Kurbelwelle (14), wobei die Hin- und Herbewegung der Kolben (16, 18) die Kurbelwelle (14) antreibt; und mindestens einen zumindest teilweise in dem Zylinder (12) angeordneten Treibstoffeinspritzer (34), wobei der Treibstoffeinspritzer (34) ein Gehäuse (36) und eine in der Brennkammer (28) angeordnete Düse (38) hat, durch die der Treibstoff in die Brennkammer (28) ausgestoßen wird; wobei die Düse (38) des Treibstoffeinspritzers (34) von einer Endfläche eines Gehäuses (36) des Einspritzers (34) in der Richtung der Zylinderachse nach außen vorsteht, so dass die Düse (38) direkt in der Brennkammer (28) freiliegend ist; und wobei der Treibstoffeinspritzer (34) an dem von der Kurbelwelle (14) entfernten Ende des...

LUFTGEKÜHLTE BRENNKRAFTMASCHINE

Fluid Transducer

... 1,181,881. Cam mechanism. H. SCHOTTLER. 14 March, 1967 [4 April, 1966], No. 12026/67. Heading F2K. [Also in Division F1] In a pump, motor, compressor or I.C. engine (see Division F1), reciprocation of the piston 23 is converted into rotation of the drive shaft 40, or vice versa, by a face cam 52 mounted on the piston for axial movement only and a face cam 51 mounted on the drive shaft for rotation therewith, a number of balls or rollers 60, corresponding to the number of cam lobes on each face cam, being located between the cams by a cage 61 movable rotatably and axially on a stub shaft 43. As shown, piston 23 and cam 52 are held against rotation by splines 64, and are biased downwardly by springs 72. In Fig. 5 (not shown), a pump, motor or compressor has pairs of opposed pistons concentric with the drive shaft, caged rollers being located between face cams on the pistons and drive shaft. The phase relationship between a pair of opposed pistons is adjusted by rotating one of the corresponding ...

Improved opposed piston engine

Adiabatic, two-stroke cycle engine having piston phasing and compression ratio control system

Rotary compressors

COMBUSTION CHAMBER CONSTRUCTIONS FOR OPPOSED-PISTON ENGINES

A combustion chamber for an opposed-piston engine includes a squish zone defined between circumferential peripheral areas of opposing end surfaces of the pistons, a cavity defined by one or more bowls in the end surfaces, and at least one injection port that extends radially through the squish zone into the cavity. The cavity has a cross-sectional shape that imposes a tumbling motion on air flowing from the squish zone into the cavity.

Bilateral engine control system

Technology is provided for a bilateral engine control system for use on a multi-cylinder opposed piston engine. The system includes first and second sets of injectors, each set mountable on first and second sides of an engine. Each injector is in fluid communication with a corresponding cylinder of the engine. First and second engine control units are each connected to a respective set of injectors. First and second crankshaft speed sensors are connected to respective engine control units. The first engine control unit independently controls the first set of injectors based on a first speed signal and the second engine control unit independently controls the second set of injectors based on a second speed signal. The first engine control unit and the second engine control unit are configured to activate corresponding injectors of the first and second sets of injectors at substantially the same time.

Engine Crank and Connecting Rod Mechanism

A crank and connecting rod mechanism having an angularly disposed connecting rod and mirror image gear sets, each comprising: a crank gear rotatably mounted on a crank gear shaft, having a crankpin pivotally connected to and driven by the connecting rod, the crankpin following the path of a roulette of a centered trochoid about a first stationary gear as the crank gear is driven about the first stationary gear and a crankshaft driven gear is driven about a second stationary gear, a counterbalanced radial arm affixed to a drive shaft at a pivot point of the counterbalanced radial arm, the counterbalanced radial arm driving the drive shaft at the pivot point and the crank gear shaft at an outer radial arm bearing, the drive shaft driving a drive shaft gear, which drives an output gear that drives an output shaft.

Method for controlling an air boosting apparatus in a two-stroke, opposed piston engine, and a two-stroke, opposed piston engine with an air boosting apparatus

A method includes operating an air boosting apparatus of a two-stroke, opposed piston engine as a function of one or more factors including a first engine speed, a first torque, demand, a first altitude, a first transient rate, and one or more first ambient conditions to provide a first pressure S ratio (PR} of pre-turbine pressure (PTP) versus turbocharger compressor discharge pressure (CDP} and a first air-to-fuel ratio (AFR).

A boat with a low-profile opposed piston engine

A boat 10 comprises a main deck 18 located at the level of the bilges of the boat and a low-profile inboard engine 30 located at, or towards the centre of the vessel. The engine is at least partially located below the main deck of the boat. The boat may be a rigid inflatable boat and may be a jet tender in which the engine is operatively connected to a jet pump 36 located below the level of the main deck. A fuel tank 34 may also be located below the level of the main deck while a passenger or cargo area 16 may be located above the level of the main deck. Also disclosed is an opposed piston marine engine (Fig. 3) and a cylinder liner (80, Fig 6) for an internal combustion engine of the opposed piston type.

Watercraft

Improvements in the internal combustion engines

ALTERNATE ROTARY ENGINE

INTERNAL COMBUSTION ENGINE

본 발명은 내연기관(1)에 관한 것으로, 상기 내연기관은 -작동 유체를 수용하도록 설계된 챔버(3), -상기 챔버(3)의 체적의 경계를 형성하는 제 1 피스톤(4) -챔버(3)에 작동 유체를 공급하고 및/또는 챔버(3)로부터 작동 유체의 연소로부터 생성된 연소된 유체를 배출시키기 위해 상기 제 1 피스톤(4) 내에 위치된 제 1 경로(5), -상기 제 1 경로(5)의 밀폐 및 폐쇄를 조절하기 위해 제 1 피스톤(4) 상에 장착된 제 1 밸브(6) 및 -제 1 피스톤(4)의 운동을 출력 샤프트(8)의 회전 운동으로 변환시키기 위해 제 1 피스톤(4)과 맞물리는 출력 샤프트(8)를 포함하고, 출력 샤프트(8)와 제 1 밸브(6)는 출력 샤프트(8)의 운동을 제 1 밸브(6)의 운동으로 변환시키기 위해 협력하는 것을 특징으로 한다. The present invention relates to an internal combustion engine (1), wherein the internal combustion engine A chamber (3) designed to receive a working fluid, - a first piston (4) forming a boundary of the volume of the chamber (3) - a first path (5) located in the first piston (4) for supplying a working fluid to the chamber (3) and / or for discharging the combusted fluid resulting from the combustion of the working fluid from the chamber (3) - a first valve (6) mounted on the first piston (4) for controlling the closing and closing of the first path (5) - an output shaft (8) engaged with the first piston (4) to convert the movement of the first piston (4) into a rotary motion of the output shaft (8), and the output shaft (8) 6 cooperate to convert the motion of the output shaft 8 into the motion of the first valve 6.

TWO-STROKE OPPOSITE RADIAL ROTARY-PISTON ENGINE

A two-stroke opposite rotary-piston engine comprises a cylinder block including a sleeve and two pistons slidely disposed therein, oppositely movable forming a common combustion chamber and a first gap with sleeve's sidewalls, a rotor having a surface formed by an ellipse or Cassini line, traverses attached to the pistons, rollers attached to the traverses and springly depressed against the rotor, oil tubes with end bushings, oil supply and withdraw means, two plungers disposed in each tube forming a second gap essentially less than the first. The plungers are attached to the traverses and oppositely movable, including through channels, outward surfaces with the bushings forming external spaces, and inward surfaces with the tube sidewalls forming an internal space communicating with the oil supply and withdraw means. Oil drain means communicate the external spaces with the oil supply means. The engine absorbs side and inertial forces, is more efficient and clean. COPYRIGHT KIPO & WIPO 2010 ...

IMPROVED OPPOSED PISTON ENGINE

The invention relates to an opposed piston engine comprising at least one cylinder, at least two pistons arranged to be reciprocated within the same cylinder in an opposed manner, at least one intake port through the cylinder wall, at least one exhaust port through the cylinder wall, at least one shaft arranged to be rotated by reciprocal motion of the opposed pistons, at least one reciprocatable sleeve valve within the cylinder for controlling porting of one or both of the at least one intake port and the at least one exhaust port, a sleeve valve driving mechanism for controlling reciprocal motion of the at least one sleeve valve, and a dwell mechanism. The dwell mechanism is configured to induce at least one period of dwell of the at least two pistons during their respective cycles of piston motion..

Valve system for a rapid response power conversion device

An apparatus and method providing a system configured to transfer energy from an internal combustion engine to drive a load. The system includes a rapid response component, a valve system and an actuator. The rapid response component is configured to be operatively coupled to a combustion portion of the internal combustion engine. The rapid response component also is configured to draw a portion of energy from the combustion in the internal combustion engine and transfer the portion of energy as a fluid including pulsitile fluid flow. The valve system is operatively coupled to the rapid response component and is operable to receive the pulsitile fluid flow from the rapid response component and controllably direct the pulsitile fluid flow from the rapid response component. The actuator is operatively coupled to the valve system and is configured to be operatively coupled to the load. The actuator is operable to receive the fluid from the valve system to drive the load operatively coupled ...

Toroidal combustion chamber with side injection

A toroidal combustion chamber shape with a side injector is disclosed for an opposed-piston engine. Fuel is injected into the toroidal volume from a fuel injector in the cylinder wall. In one embodiment, fuel is injected from each injector a plurality of times with the timing between the injections such that fuel clouds from each injection remain substantially isolated from each other.

Internal combustion engine

... - Moteur à combustion interne. - L'invention concerne un moteur à combustion interne comprenant : - une chambre conçue pour accueillir un fluide de travail destiné à subir une combustion au sein de ladite chambre, - un premier piston (4) et un deuxième piston qui contribuent tous deux à délimiter le volume de ladite chambre, ledit moteur étant caractérisé en ce que : - un premier passage est ménagé à travers ledit premier piston (4) pour mettre en communication l'intérieur de la chambre avec l'extérieur, ledit premier passage étant conçu pour évacuer hors de la chambre le fluide brûlé résultant de la combustion du fluide de travail, un deuxième passage est ménagé à travers ledit deuxième piston pour mettre en communication l'intérieur de la chambre avec l'extérieur, ledit premier passage étant conçu pour alimenter la chambre en fluide de travail. - Moteurs.

Verbesserter Dualkompressions- und Dualexpansionsmotor

Double acting IC engine - has cylinder gas ports piston sealing elements combustion chamber and drive linkage

The engine has a cylinder within which opposed pistons move and which contains inlet and discharge ports which are opened and closed by pistons. The piston heads are shaped and form a combustion chamber which is shaped to ensure complete combustion and thus increase the efficiency and power output. The pistons carry sealing elements in the form of piston rings which prevent leakage of gases and oil past the piston skirts. Each piston has a gudge on pin on which a connecting rod swings. The connecting rod is atached at the other end to the crank of a crankshaft. A similar opposed piston arrangement can be used with rotary pistons or with a combination of rotary and reciprocating pistons.

Opposed piston combustion engine having fuel injector disposed at least partly within an engine cylinder

Disclosed is an internal combustion engine comprising at least one cylinder 12 and a pair of opposed, reciprocating pistons 16,18 within the cylinder forming a combustion chamber 28 therebetween. The engine has at least one fuel injector 34 disposed at least partly within the cylinder, the fuel injector having a nozzle 38 that is positioned within the combustion chamber and through which the fuel is expelled into the combustion chamber, wherein the nozzle 38 is exposed directly within the combustion chamber 28.

Internal combustion engine

Opposed stepped piston engine power cylinder lubrication system

Opposed piston engine with non-collinear axes of translation

An opposed piston internal combustion engine can include two opposed pistons ( 104, 110 ) moving reciprocally along respective axes of translation ( 202, 204 ) that are not collinear. First and second cylinder bores ( 502, 504 ) can be inclined to each other at an included angle (a). A combustion volume or chamber ( 114 ) can optionally be defined at least in part by crowns ( 102, 106 ) of the first and second pistons ( 104, 110 ) reciprocating in the first and second cylinder bores ( 502, 504 ), respectively. Related methods, systems, and articles of manufacture are described.

RECIPROCATING ENGINE

A reciprocating engine having a fixed body and at least one rotating and reciprocating member. The engine also has at least one combustion chamber, and the or each combustion chamber is defined between at least a fixed member connected to the fixed body and at least one rotating and reciprocating member. The or each rotating and reciprocating member is coupled to the fixed body in such a manner that reciprocating motion of the or each rotating and reciprocating member produces rotation of the or each rotating and reciprocating member. The or each rotating and reciprocating member is coupled to an output shaft in such a manner that the rotational motion only of the or each rotating and reciprocating member is transferred to the output shaft. 120-. (canceled)21. A reciprocating internal combustion engine having at least one cylinder , a drive shaft that is coaxial with the cylinder , and at least one reciprocating member configured to reciprocate and to cause the drive shaft to rotate , and the or each reciprocating member is connected to the driveshaft via a sliding joint that allows reciprocating motion of the reciprocating member in line with a longitudinal axis of the drive shaft whilst preventing rotational movement of the reciprocating member about or relative to the drive shaft.22. A reciprocating internal combustion engine as claimed in claim 21 , wherein the reciprocating motion of the or each reciprocating member is converted to rotary motion of the or each reciprocating member by an interaction between at least one end cam and at least one cam engagement roller.23. A reciprocating internal combustion engine as claimed in claim 22 , wherein the or each end cam or the or each cam engagement roller is fixed to a stationary part or frame of the engine.24. A reciprocating internal combustion engine as claimed in claim 22 , wherein the or each end cam is a part of the or each reciprocating member.25. A reciprocating internal combustion engine as claimed in claim ...

Internal combustion engine

The invention relates to an engine ( 1 ) including: a chamber ( 3 ) designed to accommodate a working fluid, a first piston ( 4 ) defining the volume of said chamber ( 3 ), a first passage ( 5 ) located in said first piston ( 4 ) to supply the chamber ( 3 ) with working fluid and/or to discharge from the chamber ( 3 ) the burned fluid resulting from the combustion of the working fluid, a first valve ( 6 ) mounted on the first piston ( 4 ) to monitor the opening and closing of said first passage ( 5 ), an output shaft ( 8 ) that engages with the first piston ( 4 ) to convert the motion of the first piston ( 4 ) into rotational motion of the output shaft ( 8 ), characterized in that the output shaft ( 8 ) and the first valve ( 6 ) engage to convert the motion of output shaft ( 8 ) into motion of the first valve ( 6 ).

HIGH-EFFICIENCY LINEAR COMBUSTION ENGINE

Various embodiments of the present invention are directed toward a linear combustion engine, comprising: a cylinder having a cylinder wall and a pair of ends, the cylinder including a combustion section disposed in a center portion of the cylinder; a pair of opposed piston assemblies adapted to move linearly within the cylinder, each piston assembly disposed on one side of the combustion section opposite the other piston assembly, each piston assembly including a spring rod and a piston comprising a solid front section adjacent the combustion section and a gas section; and a pair of linear electromagnetic machines adapted to directly convert kinetic energy of the piston assembly into electrical energy, and adapted to directly convert electrical energy into kinetic energy of the piston assembly for providing compression work during the compression stroke. 1. A method for operating a reciprocating device , the method comprising:causing a piston assembly to translate according to a cycle, wherein the cycle comprises at least an expansion stroke and a stroke subsequent to the expansion stroke;converting kinetic energy of the piston assembly into electrical energy using a linear electromagnetic machine during the expansion stroke and during the stroke subsequent to the expansion stroke;controlling an amount of energy stored in a driver section coupled to the piston assembly such that the amount of energy is sufficient to perform the stroke subsequent to the expansion stroke; andperforming the subsequent stroke using the amount of energy from the driver section.2. The method of claim 1 , wherein the stroke subsequent to the expansion stroke comprises a compression stroke.3. The method of claim 1 , wherein the piston assembly is a free-piston assembly.4. The method of claim 1 , wherein the driver section comprises a gas spring claim 1 , and wherein the gas spring is coupled to a first port for removing driver gas and a second port for providing make-up driver gas.5. The ...

EXHAUST MANAGEMENT STRATEGIES FOR OPPOSED-PISTON, TWO-STROKE ENGINES

Exhaust temperature management strategies for an opposed-piston, two-stroke engine with EGR are based on control of a ratio of the mass of fresh air and external EGR delivered to a cylinder to the mass of the trapped charge (density of the delivered charge multiplied by the trapped volume at port closing). 1. A two-stroke cycle internal combustion engine including at least one cylinder with exhaust and intake ports , two pistons disposed in a bore of the cylinder with end surfaces in opposition to each other , a charge air channel to provide charge air to at least one intake port of the engine , and an exhaust channel to receive exhaust from at least one exhaust port of the engine , in which an exhaust gas recirculation (EGR) loop has a loop input coupled to the exhaust channel and a loop output coupled to the charge air channel , a supercharger is operable to pump charge air in the charge air channel , a backpressure device is operable to control backpressure in the exhaust channel , and a control mechanization is operable to increase a trapped temperature in the cylinder by controlling one or more of the supercharger , the EGR loop , and the backpressure device during a cold start condition of the engine or a low-load condition of the engine.2. The two-stroke cycle internal combustion engine of claim 1 , in which the charge air channel includes at least one charge air cooler claim 1 , wherein the loop output is coupled in series with the at least one charge air cooler.3. The two-stroke cycle internal combustion engine of claim 1 , in which the EGR loop includes a variable valve and the control mechanization is operable to control a setting of the valve in response to a trapped temperature of the cylinder.4. The two-stroke cycle internal combustion engine of claim 1 , in which the supercharger is one of a single-speed supercharger claim 1 , a multispeed supercharger claim 1 , and a variable-speed supercharger and the control mechanization is operable to control the ...

High-efficiency linear combustion engine

Various embodiments of the present invention are directed toward a linear combustion engine, comprising: a cylinder having a cylinder wall and a pair of ends, the cylinder including a combustion section disposed in a center portion of the cylinder; a pair of opposed piston assemblies adapted to move linearly within the cylinder, each piston assembly disposed on one side of the combustion section opposite the other piston assembly, each piston assembly including a spring rod and a piston comprising a solid front section adjacent the combustion section and a gas section; and a pair of linear electromagnetic machines adapted to directly convert kinetic energy of the piston assembly into electrical energy, and adapted to directly convert electrical energy into kinetic energy of the piston assembly for providing compression work during the compression stroke.

FREE PISTON APPARATUS

A free piston apparatus includes a piston receptacle in which a piston device having a piston is reciprocable along an axis. The piston receptacle includes or forms a chamber delimited by a wall arrangement forming an inlet opening and an outlet opening. A cooling device is arranged on the piston receptacle for cooling the wall arrangement. The cooling device includes or forms a cooling channel arranged radially outside on the wall arrangement. The cooling channel has first and second cooling regions axially on opposing sides of the outlet opening. The piston receptacle includes or forms an outlet chamber, arranged outside on the wall arrangement, for exhaust gas exiting via the outlet opening. The cooling channel has a third cooling region which flow-connects the first cooling region and the second cooling region along the outlet chamber and is positioned at least in sections radially outside of the outlet chamber. 1. A free piston apparatus comprising a piston receptacle in which at least one piston device having a piston is arranged so as to be reciprocable along an axis , wherein the piston receptacle comprises or forms a combustion chamber delimited by a wall arrangement in which at least one inlet opening for the supply of fresh gas and , spaced apart therefrom in an axial direction , at least one outlet opening for the removal of exhaust gas are formed , wherein the free piston apparatus comprises a cooling device arranged on the piston receptacle for cooling the wall arrangement , wherein the cooling device comprises or forms a cooling channel for a cooling medium which is arranged radially outside on the wall arrangement and at least partially surrounds the same in circumferential direction of the axis , which cooling channel has a first cooling region and a second cooling region axially on opposing sides of the at least one outlet opening , wherein the piston receptacle comprises or forms an outlet chamber , arranged outside on the wall arrangement , for ...

FREE PISTON DEVICE

A free piston apparatus includes a piston receptacle in which a piston device having a piston is reciprocable along an axis. The piston receptacle includes or forms a combustion chamber delimited by a wall arrangement forming an inlet opening for the supply of fresh gas and an outlet opening for the removal of exhaust gas. Fresh gas is suppliable via a supply conduit. The free piston apparatus includes a housing for fresh gas which is connected to the supply conduit in a flow direction of the fresh gas being supplied. The housing forms a settling chamber for fresh gas which surrounds the piston receptacle at least in sections in the region of the inlet opening in a circumferential direction of the axis. The settling chamber opens into the combustion chamber via the inlet opening. 1. A free piston apparatus comprising a piston receptacle in which at least one piston device having a piston is arranged so as to be reciprocable along an axis , wherein the piston receptacle comprises or forms a combustion chamber delimited by a wall arrangement in which at least one inlet opening for the supply of fresh gas and , spaced apart therefrom in axial direction , at least one outlet opening for the removal of exhaust gas are formed , wherein fresh gas is suppliable via a supply conduit , wherein the free piston apparatus comprises a housing for fresh gas which is connected to the supply conduit in flow direction of the fresh gas being supplied , which housing forms a settling chamber for fresh gas which surrounds at least in sections the piston receptacle in the region of the at least one inlet opening in circumferential direction of the axis , which settling chamber opens into the combustion chamber via the at least one inlet opening.2. The free piston apparatus according to claim 1 , wherein the housing is configured such that the settling chamber entirely surrounds the piston receptacle in circumferential direction of the axis.3. The free piston apparatus according to claim ...

FREE PISTON DEVICE AND METHOD FOR OPERATING A FREE PISTON DEVICE

A free piston apparatus includes a piston receptacle in which a piston device having a piston is reciprocable along an axis. The piston receptacle includes a combustion chamber delimited by a wall arrangement forming an inlet opening for the supply of fresh gas and an outlet opening for the removal of exhaust gas. The free piston apparatus includes an inflow device, which has the inlet opening and is configured such that fresh gas flowing into the combustion chamber is directed to an incident flow region in the combustion chamber arranged offset axially to the inlet opening, which incident flow region is arranged off-center relative to the axis. A method for operating a free piston apparatus includes operating an inflow device which has an inlet opening configured such that fresh gas is directed to an incident flow region in a combustion chamber offset axially to the inlet opening. 1. A free piston apparatus comprising a piston receptacle in which at least one piston device having a piston is arranged so as to be reciprocable along an axis , wherein the piston receptacle comprises or forms a combustion chamber delimited by a wall arrangement in which at least one inlet opening for the supply of fresh gas and , spaced apart therefrom in axial direction , at least one outlet opening for the removal of exhaust gas are formed , wherein the free piston apparatus comprises an inflow device for fresh gas , which has the at least one inlet opening and is configured in such a way that fresh gas flowing into the combustion chamber is directed to an incident flow region in the combustion chamber arranged offset axially to the at least one inlet opening in the direction of the at least one outlet opening , which incident flow region is arranged off-center relative to the axis.2. The free piston apparatus according to claim 1 , wherein the inflow device is configured such that a tumble-shaped movement of the inflowing fresh gas in the combustion chamber is achievable claim 1 , ...

Free-piston device and method for operating a free-piston device

A free piston apparatus includes a piston receptacle in which a piston device having a piston is linearly reciprocable. The piston receptacle includes or forms a combustion chamber delimited by a wall arrangement forming a first opening and a second opening. The openings include an inlet opening for the supply of fresh gas and an outlet opening for the removal of exhaust gas for a uniflow scavenging of the combustion chamber. Movement of the piston device is controllable by a control device. The bottom dead center of the piston can be adjustable such that when the piston adopts the bottom dead center, the first opening is partially unblocked and partially blocked for adjusting a free cross sectional area of the first opening. An opening duration can also be adjustable. A method for operating a free piston apparatus includes controlling movement of a piston device with a control device.

SUPERCHARGER PROTECTION IN AN OPPOSED-PISTON ENGINE WITH EGR

In a supercharged, two-stroke cycle, opposed-piston engine with an EGR loop, exhaust gas recirculated to a charge air channel through which charge air is provided to a supercharger inlet is cleansed of particulate materials by a particulate filter located in the EGR channel to capture and oxidize particulate matter before EGR is allowed to flow through the supercharger and any cooler in the EGR flow path. A diesel oxidation catalyst device may be provided in the EGR channel, in series with the particulate filter. 1. An air handling system in an internal combustion engine , comprising:a source of exhaust gas collected from cylinder exhaust ports of a two-stroke cycle, opposed-piston engine;a supercharger coupled to an intake manifold of the two-stroke cycle, opposed-piston engine;an exhaust channel to transport collected exhaust from the exhaust source to a turbine inlet of a turbocharger;a charge air channel to transport charge air from a compressor outlet of the turbocharger to an inlet of the supercharger;an exhaust gas recirculation (EGR) channel coupled to transport exhaust gas from the exhaust channel to the charge air channel; and, a particulate filter in the EGR channel.2. The air handling system of her including a diesel oxidation catalyst device in the EGR channel.3. The air handling system of claim 1 , further including a catalytic converter in the EGR channel.4. The air handling system of claim 1 , in which the particulate filter comprises a regenerative particulate filter.5. The air handling system of claim 4 , further including a diesel oxida on c alyst device in the EGR channel.6. The air handling system of claim 4 , further including a catalytic converter in the EGR channel.7. An air handling system in an internal combustion engine claim 4 , comprising:a source of exhaust gas collected from cylinder exhaust ports of a two-stroke cycle, opposed-piston engine;a supercharger coupled to an intake manifold of the two-stroke cycle, opposed-piston engine;an ...

BILATERAL ENGINE CONTROL SYSTEM

Technology is provided for a bilateral engine control system for use on a multi-cylinder opposed piston engine. The system includes first and second sets of injectors, each set mountable on first and second sides of an engine. Each injector is in fluid communication with a corresponding cylinder of the engine. First and second engine control units are each connected to a respective set of injectors. First and second crankshaft speed sensors are connected to respective engine control units. The first engine control unit independently controls the first set of injectors based on a first speed signal and the second engine control unit independently controls the second set of injectors based on a second speed signal. The first engine control unit and the second engine control unit are configured to activate corresponding injectors of the first and second sets of injectors at substantially the same time. 1. A bilateral engine control system for use on a multi-cylinder opposed piston engine , the system comprising:a first set of fuel injectors mountable on a first side of an engine, each in fluid communication with a corresponding cylinder of the engine;a second set of fuel injectors mountable on a second side of the engine, each in fluid communication with one of the corresponding cylinders of the engine;a first engine control unit connected to the first set of injectors for control thereof;a second engine control unit connected to the second set of injectors for control thereof;a first crankshaft speed sensor and a second crankshaft speed sensor connected to the first engine control unit and the second engine control unit, respectively; andone or more communication lines connecting the first and second engine control units, whereby signals from the first and second crankshaft speed sensors are shared between the first and second engine control units;wherein the first engine control unit independently controls the first set of injectors and the second engine control unit ...

INTERNAL COMBUSTION ENGINE

The invention provides an internal combustion engine comprising a piston mounted for reciprocating linear motion within a cylinder along a cylinder axis. The piston is coupled to an output shaft by a power transfer assembly arranged to convert linear motion of the piston to rotary motion of the output shaft. The piston has a first head moveable within a first chamber and a second head opposite the first head and moveable within a second chamber. The power transfer assembly has a lubrication system for lubricating moving components of the power transfer assembly. The lubrication system is sealed from the first chamber and the second chamber to prevent the passage of fluid from the lubrication system into the first chamber and the second chamber. 148.-. (canceled)49. A propulsion unit for a water craft including an internal combustion engine comprising a plurality of pistons arranged for reciprocating linear motion within a common cylinder along a common cylinder axis , and further comprising a propeller or impeller arranged to be driven in rotation by the engine , wherein the cylinder axis is oriented substantially parallel to an axis of rotation of the propeller or impeller.50. A propulsion unit according to claim 49 , wherein at least one of the pistons has a first head at one end of the piston and moveable within a first chamber and a second head at an opposite end of the piston and moveable within a second chamber.51. A propulsion unit according to claim 49 , wherein each piston is coupled to an output shaft by a respective power transfer assembly arranged to convert linear motion of the piston to rotary motion of the output shaft.52. A propulsion unit according to claim 51 , wherein at least one of the power transfer assemblies has a lubrication system for lubricating moving components of the power transfer assembly.53. A propulsion unit according to claim 52 , wherein at least one of the pistons has a first head at one end of the piston and moveable within a ...

DUAL-CRANKSHAFT, OPPOSED-PISTON ENGINE WITH MECHANICALLY UNCOUPLED CRANKSHAFTS

An opposed-piston engine with two crankshafts includes a first power transducer coupled to a first crankshaft of the two crankshafts and a second power transducer coupled to a second crankshaft of the two crankshafts. The two crankshafts are not rotatably connected, and so are free to rotate independently of each other. Phase relationships between the crankshafts may be controlled by operating the power transducers to increase, or reduce, crankshaft torque. Changes in crankshaft phase relationships cause changes in opposed piston locations, which, in turn, enable control of engine performance factors. 1. An opposed-piston engine device , comprising:an opposed-piston engine comprising a first crankshaft and a second crankshaft, configured to rotate independently of each other;a first power transducer operatively coupled to the first crankshaft;a second power transducer operatively coupled to the second crankshaft; and,a control mechanization configured to determine a rotation phase difference between the first and second crankshafts and to cause the first and second power transducers to change the rotation phase difference between the first and second crankshafts.2. The opposed-piston engine device of in which the control mechanization comprises:a first rotation sensor engaging the first crankshaft;a second rotation sensor engaging the second crankshaft; and, connected to receive signals from the first and second rotational sensors and configured to determine the rotation phase difference based on the signals received from the first and second rotational sensors; and,', 'connected to transmit signals to the first and second power transducer devices which cause the first and second power transducers to change the rotation phase difference., 'a control unit which is3. The opposed-piston engine device of in which the first and second power transducers each comprises an electric motor/generator device.4. The opposed-piston engine device of in which the change of the ...

Fuel injector mounting assembly for an opposed-piston engine

A fuel injector mounting assembly in an opposed-piston engine allows for mounting of a fuel injector in a cylinder block without significantly deforming the wall of the cylinder into which the injector is configured to deliver fuel. The fuel injector mounting assembly includes a clamping arrangement to clamp the fuel injector to the cylinder block, an elongate tubular sleeve that sheathes a nozzle portion of the fuel injector, and a spanner nut attached to the elongate tubular sleeve. Clamping loads applied to retain the fuel injector in the cylinder block are controlled by the spanner nut.

Engine Crank and Connecting Rod Mechanism

A crank and connecting rod mechanism, comprising at least one piston, which reciprocates within at least one cylinder, comprising: at least one connecting rod, comprising: a piston end pivotally connected to the at least one piston, a crank end; at least one gear set, comprising: a crankpin, the crank end pivotally connected to the crankpin; a crank gear; a crank gear shaft, the crank gear rotatably mounted on the crank gear shaft, the crankpin located between centerline of the crank gear shaft and radius of the pitch circle of the crank gear; a stationary gear, the crank gear meshing with the stationary gear, the crank end driving the crankpin, which drives the crank gear and the crank gear shaft about the stationary gear; the crank pin and the crank end rotating about the stationary gear and following the path of a roulette of a centered trochoid about the stationary gear. 1. A rotary valve for use in an engine , which passes intake air from an engine intake manifold to an engine intake cylinder throat and exhausts spent gasses from an engine exhaust cylinder throat to an engine exhaust manifold , comprising:a rotary valve bore; 'an intake passageway, an exhaust passageway, stepped notches;', 'a rotary valve body, which rotates stepwise within said rotary valve bore, comprising cyclically aligning said intake passageway with said engine intake manifold and said engine intake cylinder throat,', 'cyclically aligning said exhaust passageway with said engine exhaust cylinder throat and said engine exhaust manifold., 'an intake pushrod and an exhaust pushrod, which push said stepped notches stepwise, rotating said intake passageway and said exhaust passageway each stepwise,'}, 'said rotary valve comprising2. The rotary valve according to claim 1 , wherein:said rotary valve body has a plurality of dimple shaped stops,said rotary valve bore has a spring loaded stop ball bearing, which cyclically presses against an adjacent one of said plurality of dimple shaped stops and ...

EXHAUST PLENUM CHAMBER CONSTRUCTIONS INCLUDING THERMAL BARRIER COATINGS FOR OPPOSED-PISTON ENGINES

An exhaust plenum chamber with a thermal barrier coating for an opposed-piston engine reduces heat rejection to coolant, while increasing exhaust temperatures, fuel efficiency, and quicker exhaust after-treatment light-off. The exhaust plenum chamber can include a coating on the inside surface of the chamber. Posts which are structural and provide cooling channels or passageways can be present in the exhaust plenum chamber and coated with the thermal barrier coating material. 1. An opposed-piston engine , comprising:a cylinder block;a cylinder disposed in the cylinder block, the cylinder including a cylinder wall having an interior surface defining a bore centered on a longitudinal axis of the cylinder and intake and exhaust ports formed in the cylinder wall near respective opposite ends of the cylinder, the intake and exhaust ports each including an array of port openings extending through the cylinder wall to the bore;an exhaust plenum chamber in the cylinder block in which the exhaust port of the cylinder is situated such that the exhaust plenum chamber receives all exhaust gas from the cylinder; anda coating on an inside surface of the exhaust plenum chamber that reduces heat transfer from exhaust gas to the cylinder block.2. The opposed-piston engine of claim 1 , wherein the exhaust plenum chamber comprises at least one support post of the engine block.3. The opposed-piston engine of claim 2 , wherein the support post comprises a coolant passageway.4. The opposed-piston engine of claim 3 , wherein liquid coolant flows through the coolant passageway during operation of the engine.5. The opposed-piston engine of claim 1 , wherein the coating comprises a thermally insulating material.6. The opposed-piston engine of claim 5 , wherein the thermally insulating material has a low coefficient of thermal conductivity.7. The opposed-piston engine of claim 5 , wherein the coating comprises any one of zirconia claim 5 , alumina claim 5 , a chrome-containing composition ...

AIR HANDLING IN A HEAVY-DUTY OPPOSED-PISTON ENGINE

An air handling arrangement in a two-stroke cycle, opposed-piston engine with uniflow scavenging and constructed for heavy-duty operation includes sequentially arranged turbochargers in series with a supercharger. In some aspects, the air handling system is equipped with an EGR channel. 1. A two-stroke cycle , uniflow-scavenged , opposed-piston engine , comprising:one or more cylinders, each cylinder comprising a bore, longitudinally-separated exhaust and intake ports, and a pair of pistons disposed in the bore for opposing movements therein, in which movement of a first piston of the pair of pistons controls the exhaust port and movement of the second piston of the pair of pistons controls the intake port;a supercharger disposed in fluid communication with the intake ports to provide a continuous positive pressure differential from the intake ports to the exhaust ports so as to maintain a unidirectional flow of gas from the intake ports to the exhaust ports during two-stroke operation of the engine;a sequential turbocharger, including a first turbocharger and a second turbocharger, each of the turbochargers including a turbine and a compressor, in which the compressors of the first and second turbochargers are arranged in series with the supercharger such that the compressor of the first turbocharger is in fluid communication with the compressor of the second turbocharger and the compressor of the second turbocharger is in fluid communication with the supercharger, and the turbines of the first and second turbochargers are arranged in series with the exhaust ports such that the turbine of the second turbocharger is in fluid communication with the exhaust ports and the turbine of the first turbocharger is in fluid communication with the turbine of the second turbocharger;a compressor bypass valve associated with the second turbocharger and disposed in parallel with the compressor of the second turbocharger, the compressor bypass valve having a closed setting that ...

Piston Cooling For Opposed-Piston Engines

Pistons for opposed-piston engines include an interior annular cooling gallery. The gallery is provided with inlet and drain passageways constructed to shield a jet of liquid coolant entering the gallery, thereby reducing interference between the incoming jet and liquid coolant circulating in the gallery.

PISTON BEARING ASSEMBLY FOR AN OPPOSED-PISTON ENGINE

A piston for an opposed-piston, internal combustion engine includes a crown with an end surface shaped to form a combustion chamber with an end surface of an opposing piston in the opposed-piston engine, a skirt part including a piston sidewall extending from the crown to an open end of the skirt part, a wristpin bore with first and second openings through the sidewall, a wristpin disposed in the wristpin bore, and at least two caps received in the first and second openings of the wristpin bore for sealing the wristpin bore and retaining the wristpin against axial movement. 1. A piston for an opposed-piston engine , comprising:a crown with an end surface that includes means for forming an opposed-piston engine combustion chamber with an adjacent end surface of an opposing piston;a skirt including a sidewall extending from the crown to an open end of the skirt;a wristpin bore with a first opening formed in a first pin boss in a first longitudinal recess of the sidewall and a second opening formed in a second pin boss in a second longitudinal recess of the sidewall, the openings being coaxially aligned along a common axis;a wristpin including ends received in the first and second openings for supporting the wristpin in the wristpin bore; and,means for sealing the first and second openings and retaining the wristpin against axial motion in the wristpin bore.2. The piston of claim 1 , in which the means for sealing and retaining comprise caps in the first and second openings.3. The piston of claim 2 , in which the caps comprise disc-shaped devices seated in the first and second openings.4. The piston of claim 3 , in which the disc-shaped devices comprise one of O-rings and flanges.5. The piston of claim 3 , in which the disc-shaped devices are seated in the first and second openings by at least one of a press-fit and deformation of a center portion of each disc-shaped device.6. The piston of claim 3 , in which the wristpin is secured to the small end of a connecting rod ...

MINIMIZING OIL LEAKAGE FROM ROCKING JOURNAL BEARINGS

A rocking journal bearing is provided in a piston coupling mechanism. The bearing includes a sleeve and a wristpin constructed with two sets of eccentrically-disposed bearing surfaces which alternate in accepting a compressive load during an operational cycle of the bearing. The sleeve includes a network of grooves to transport oil to the bearing surfaces. Lubricating oil flow through the bearing is minimized by limiting provision of pressurized oil from the wristpin to the network of grooves to portions of the cycle when one or the other of the sets of bearing surfaces receives the compressive load. 16-. (canceled)7. A rocking journal bearing , comprising:a bearing sleeve including a generally cylindrical bearing surface with a plurality of axially-spaced, eccentrically-disposed surface segments separated by circumferential oil grooves in the bearing surface for transporting oil in a circumferential direction of the bearing surface;a plurality of circumferentially-spaced, axial oil grooves in the bearing surface that run across the surface segments and intersect the circumferential oil grooves;said circumferential and axial oil grooves forming a network of oil grooves for transporting oil to the bearing surface;a wristpin including a plurality of axially-spaced, eccentrically-disposed journal segments engaged for rocking oscillation with corresponding surface segments; and,an oil-receiving space in the wristpin with oil outlet passages acting through the journal segments for delivering oil to the bearing surface; in which,there are no oil outlet passages in the wristpin that are aligned with the circumferential oil grooves in the bearing surface; and,at a load transfer point of the rocking journal during said rocking oscillation, no oil is provided from the oil receiving space to said network of oil grooves;at a first maximum loading point of the rocking journal during said rocking oscillation, at least one oil outlet passage in a first journal segment of the ...

INTERNAL COMBUSTION ENGINE

The invention provides an internal combustion engine comprising a piston mounted for reciprocating linear motion within a cylinder along a cylinder axis. The piston is coupled to an output shaft by a power transfer assembly arranged to convert linear motion of the piston to rotary motion of the output shaft. The piston has a first head moveable within a first chamber and a second head opposite the first head and moveable within a second chamber. The power transfer assembly has a lubrication system for lubricating moving components of the power transfer assembly. The lubrication system is sealed from the first chamber and the second chamber to prevent the passage of fluid from the lubrication system into the first chamber and the second chamber. 1. An internal combustion engine comprising a piston mounted for reciprocating linear motion within a cylinder along a cylinder axis , the piston is coupled to an output shaft by a power transfer assembly arranged to convert linear motion of the piston to rotary motion of the output shaft , the piston has a first head at one end of the piston and moveable within a first chamber and a second head at an opposite end of the piston and moveable within a second chamber , the power transfer assembly has a lubrication system for lubricating moving components of the power transfer assembly , wherein the lubrication system is sealed from the first chamber and the second chamber to prevent the passage of fluid from the lubrication system into the first chamber and the second chamber.2. An internal combustion engine according to claim 1 , wherein the power transfer assembly includes a linear motion bearing in positive contact with the piston.3. An internal combustion engine according to claim 2 , wherein the linear motion bearing is a sliding bearing or a rolling bearing.4. An internal combustion engine according to claim 3 , wherein the linear motion bearing has a portion arranged to move relative to the piston along a linear axis ...

Bilateral engine control system

Technology is provided for a bilateral engine control system for use on a multi-cylinder opposed piston engine. The system includes first and second sets of injectors, each set mountable on first and second sides of an engine. Each injector is in fluid communication with a corresponding cylinder of the engine. First and second engine control units are each connected to a respective set of injectors. First and second crankshaft speed sensors are connected to respective engine control units. The first engine control unit independently controls the first set of injectors based on a first speed signal and the second engine control unit independently controls the second set of injectors based on a second speed signal. The first engine control unit and the second engine control unit are configured to activate corresponding injectors of the first and second sets of injectors at substantially the same time.

Engine Crank and Connecting Rod Mechanism

A crank and connecting rod mechanism, comprising at least one piston, which reciprocates within at least one cylinder, comprising: at least one connecting rod, comprising: a piston end pivotally connected to the at least one piston, a crank end; at least one gear set, comprising: a crankpin, the crank end pivotally connected to the crankpin; a crank gear; a crank gear shaft, the crank gear rotatably mounted on the crank gear shaft, the crankpin located between centerline of the crank gear shaft and radius of the pitch circle of the crank gear; a stationary gear, the crank gear meshing with the stationary gear, the crank end driving the crankpin, which drives the crank gear and the crank gear shaft about the stationary gear; the crank pin and the crank end rotating about the stationary gear and following the path of a roulette of a centered trochoid about the stationary gear. 1. A crank and connecting rod mechanism for use in an engine , comprising at least one piston , which reciprocates within at least one cylinder , comprising: a piston end pivotally connected to said at least one piston,', 'a crank end;, 'at least one connecting rod, comprising [ 'said crank end pivotally connected to said crankpin;', 'a crankpin,'}, 'a crank gear;', said crank gear rotatably mounted on said crank gear shaft,', 'said crankpin located between the centerline of said crank gear shaft and the radius of the pitch circle of said crank gear;, 'a crank gear shaft,'}, said crank gear meshing with said stationary gear,', 'said crank end driving said crankpin, which drives said crank gear and said crank gear shaft about said stationary gear;, 'a stationary gear,'}, 'said crank pin and said crank end rotating about said stationary gear and following the path of a roulette of a centered trochoid about said stationary gear., 'at least one gear set, comprising2. The crank and connecting rod mechanism according to claim 1 , wherein: a counterbalanced radial arm driven by said crank gear shaft;', ...

High-efficiency linear combustion engine

Various embodiments of the present invention are directed toward a linear combustion engine, comprising: a cylinder having a cylinder wall and a pair of ends, the cylinder including a combustion section disposed in a center portion of the cylinder, a pair of opposed piston assemblies adapted to move linearly within the cylinder, each piston assembly disposed on one side of the combustion section opposite the other piston assembly, each piston assembly including a spring rod and a piston comprising a solid front section adjacent the combustion section and a gas section; and a pair of linear electromagnetic machines adapted to directly convert kinetic energy of the piston assembly into electrical energy, and adapted to directly convert electrical energy into kinetic energy of the piston assembly for providing compression work during the compression stroke.

Piston Cooling Configuration Utilizing Lubricating Oil From Bearing Reservoir In An Opposed-Piston Engine

Pressurized lubricating oil is accumulated in the bearings of opposed pistons and accumulated oil is dispensed therefrom for bearing lubrication and also for cooling the undercrowns of the pistons by jets of oil emitted from the bearings. 1. A piston cooling configuration for an opposed-piston engine , comprising:a piston with crown having an end surface shaped to form a combustion chamber with an end surface of an opposing piston;the crown including an undercrown:a bearing mounted in the piston between the undercrown and a small end of a connecting rod;the bearing including a wristpin;an oil reservoir in the wristpin in fluid communication with one or more wristpin oil outlet passages positioned to pass oil through the wristpin into a lubrication interface between the wristpin and a bearing surface;a wristpin oil inlet passage in fluid communication with the reservoir, and,at least one cooling jet outlet on one of a fixed part of the bearing and a moving part of the bearing;in which the cooling jet outlet is in fluid communication with the oil reservoir and is aimed toward an undercrown portion.2. The piston cooling configuration of claim 1 , in which the wristpin is received on the small end of the connecting rod.3. The piston cooling configuration of claim 2 , in which:the fixed part of the bearing includes a bearing member supporting the wristpin for rotatable oscillation with respect to the undercrown in response to movement of the piston; and,the cooling jet outlet includes an oil outlet passage in the bearing member.4. The piston cooling configuration of claim 3 , in which:the connecting rod includes an oil passage in fluid communication with the wristpin oil inlet passage; and,the oil outlet passage in the bearing member receives pressurized oil from the interface between the wristpin and the bearing surface5. The piston cooling configuration of claim 4 , in which the wristpin and the bearing surface form a rocking bearing.6. The piston cooling configuration ...

Opposed Piston Three Nozzle Combustion Chamber Design

An opposed piston engine may include a first housing, first and second pistons, and first, second, and third fuel injector nozzles. The first housing may define a first passage extending along a first longitudinal axis. The first and second pistons may be slidably disposed within the first passage. The first, second, and third fuel injector nozzles may be in fluid communication with the first passage. At least one of the first, second, and third fuel injector nozzles may be angularly offset from another one of the first, second, and third fuel injector nozzles by an oblique angle about the first longitudinal axis.

METHOD FOR CONTROLLING AN AIR BOOSTING APPARATUS IN A TWO-STROKE, OPPOSED PISTON ENGINE, AND A TWO-STROKE, OPPOSED PISTON ENGINE WITH AN AIR BOOSTING APPARATUS

A method includes operating an air boosting apparatus of a two-stroke, opposed piston engine as a function of one or more factors including a first engine speed, a first torque, demand, a first altitude, a first transient rate, and one or more first ambient conditions to provide a first pressure S ratio (PR} of pre-turbine pressure (PTP) versus turbocharger compressor discharge pressure (CDP} and a first air-to-fuel ratio (AFR). 1. A method for controlling an air boosting apparatus in a two-stroke , opposed piston engine , the air boosting apparatus being arranged to boost air pressure in a charge air stream upstream of a cylinder of the engine , comprising:operating the air boosting apparatus as a function of a first engine speed, a first torque demand, and one or more first ambient conditions provide a first pressure ratio (PR) of pre-turbine pressure (PTP) versus turbocharger compressor discharge pressure (CDP) and a first air-to-fuel ratio (AFR);registering a change in at least one first ambient condition of the one or more first ambient conditions to a second ambient condition;adjusting operation of the air boosting apparatus in response to the registered change from the first to the second ambient condition to provide a second PR and a second AFR.2. The method as set forth in claim 1 , wherein the operation of the air boosting apparatus is adjusted in response to the registered change from the first to the second ambient condition so that at least one of the second PR and the second AFR are the same as the first PR and the first AFR.3. The method as set forth in claim 1 , wherein the operation of the air boosting apparatus is adjusted in response to the registered change from the first to the second ambient condition so that at least one of the second PR and the second AFR are different from the first PR and the first AFR.4. The method as set forth in claim 1 , comprising registering a change in the first torque demand to a second torque demand and adjusting ...

Engine Crank and Connecting Rod Mechanism

A crank and connecting rod mechanism, comprising at least one piston, which reciprocates within at least one cylinder, comprising: at least one connecting rod, comprising: a piston end pivotally connected to the at least one piston, a crank end; at least one gear set, comprising: a crankpin, the crank end pivotally connected to the crankpin; a crank gear; a crank gear shaft, the crank gear rotatably mounted on the crank gear shaft, the crankpin located between centerline of the crank gear shaft and radius of the pitch circle of the crank gear; a stationary gear, the crank gear meshing with the stationary gear, the crank end driving the crankpin, which drives the crank gear and the crank gear shaft about the stationary gear; the crank pin and the crank end rotating about the stationary gear and following the path of a roulette of a centered trochoid about the stationary gear. 1. A rotary valve for use in an engine , which passes intake air from an engine intake manifold to an engine intake cylinder throat and exhausts spent gasses from an engine exhaust cylinder throat to an engine exhaust manifold , comprising:a rotary valve bore; 'an intake passageway, an exhaust passageway, stepped notches;', 'a rotary valve body, which rotates stepwise within said rotary valve bore, comprising cyclically aligning said intake passageway with said engine intake manifold and said engine intake cylinder throat,', 'cyclically aligning said exhaust passageway with said engine exhaust cylinder throat and said engine exhaust manifold., 'an intake stepped notch pusher and an exhaust stepped notch pusher, which push said stepped notches stepwise, rotating said intake passageway and said exhaust passageway each stepwise,'}, 'said rotary valve comprising2. The rotary valve according to claim 1 , wherein:said rotary valve body has a plurality of dimple shaped stops,said rotary valve bore has a spring loaded stop ball bearing, which cyclically presses against an adjacent one of said plurality ...

High-Efficiency Linear Combustion Engine

Various embodiments of the present invention are directed toward a linear combustion engine, comprising: a cylinder having a cylinder wall and a pair of ends, the cylinder including a combustion section disposed in a center portion of the cylinder; a pair of opposed piston assemblies adapted to move linearly within the cylinder, each piston assembly disposed on one side of the combustion section opposite the other piston assembly, each piston assembly including a spring rod and a piston comprising a solid front section adjacent the combustion section and a gas section; and a pair of linear electromagnetic machines adapted to directly convert kinetic energy of the piston assembly into electrical energy, and adapted to directly convert electrical energy into kinetic energy of the piston assembly for providing compression work during the compression stroke. 145-. (canceled)46. An engine , comprising: a first piston,', 'a second piston, and', 'a piston rod that couples the first piston and the second piston, wherein the piston assembly is configured to move linearly;, 'a piston assembly comprising a combustion section in contact with a front side of the first piston, and', 'a combustion back section in contact with a back side of the first piston; and, 'a main cylinder comprisinga gas bearing along which the piston rod is arranged to move.47. The engine of claim 46 , wherein the combustion back section is configured to be maintained at or near atmospheric pressure.48. The engine of claim 46 , further comprising a gas seal configured to seal between the piston rod and the main cylinder thereby sealing the gas in the combustor back section from outside of the main cylinder.49. The engine of claim 48 , wherein the gas seal is affixed to the main cylinder.50. The engine of claim 46 , further comprising an outer cylinder comprising:a driver section in contact with a front side of the second piston; anda driver back section in contact with a back side of the second piston.51. ...

Piston cooling for opposed-piston engines

Pistons for opposed-piston engines include an interior annular cooling gallery. The gallery is provided with inlet and drain passageways constructed to shield a jet of liquid coolant entering the gallery, thereby reducing interference between the incoming jet and liquid coolant circulating in the gallery.

Pressure differential engine

Highly efficient pressure differential rotary engines can include rotatable cylinders arranged radially around a central stationary shaft. Each of the cylinders can house one or more pistons, and the cylinders and pistons can rotate together about the central stationary shaft. Pressure differentials within the cylinders can be used to power the rotation of the cylinders about the central stationary shaft.

Low reactivity, compression-ignition, opposed-piston engine

A compression-ignition, opposed-piston engine using a low reactivity fuel as an ignition medium manages trapped temperature and trapped combustion residue within, and fuel injection into, the combustion chambers of the engine, and controls the compression ratio of the engine in order to realize reductions in emissions as well as improved fuel consumption efficiencies.

PISTON COOLING FOR OPPOSED-PISTON ENGINE

Pistons for opposed-piston engines include an interior annular cooling gallery. The gallery is provided with inlet and drain passageways constructed to shield a jet of liquid coolant entering the gallery, thereby reducing interference between the incoming jet and liquid coolant circulating in the gallery. 1. A piston for an opposed-piston engine , comprising:a crown with an end surface shaped to define a combustion chamber with an end surface of an opposing piston in an opposed-piston engine;a skirt part joined to the crown and including a piston sidewall extending from the crown to an open end of the skirt part;an annular cooling gallery defined between the crown and the skirt part;a first set of ring grooves formed in an outer peripheral surface of the crown;a second set of ring grooves formed in formed in a portion of the sidewall near the open end of the skirt;the sidewall comprising two opposing sidewall portions separated from one another by two intervening sidewall indentations; and,a wristpin bore extending between the sidewall indentations.2. The piston of claim 1 , wherein the sidewall portions extend from the crown to the open end of the skirt claim 1 , and the indentations run longitudinally in the sidewall between the first ring grooves and the second ring grooves.3. The piston of claim 1 , in which the skirt part has an interior wall near a first end of the sidewall and the annular cooling gallery is defined between a first side of the interior wall and an under surface of the crown.4. The piston of claim 3 , in which a second side of the interior wall opposite the first side includes at least a portion of a wristpin bore.5. The piston of any one of - claim 3 , comprising a wristpin received in the wristpin bore.6. The piston of claim 5 , in which the wristpin comprises a biaxial bearing unit.7. The piston of claim 6 , in which the biaxial bearing unit comprises a bearing sleeve received in the wristpin bore and a wristpin journal supported by the ...

INTERNAL COMBUSTION ENGINE

An internal combustion engine has at least one piston configured to reciprocate within a combustion chamber. The engine has a transfer port, and exhaust port and a secondary port which may be adapted as either a secondary air transfer port, a secondary exhaust port, or as a two-way port acting selectively as i) an air transfer port and ii) an exhaust port. The engine may operate on a two stroke cycle. The engine may be for use submerged in a body of water, e.g. in an outboard motor, and with a cowling defining a volume near an outer wall of the combustion chamber. The volume can be selectively filled with water or exhaust gas for engine temperature optimisation. 152-. (canceled)53. An internal combustion engine comprising:a pair of pistons in an opposed piston arrangement and a combustion chamber shared by the pair of opposed pistons, the pistons are configured to reciprocate within the combustion chamber,wherein the combustion chamber has a two-way port configured to selectively convey exhaust gas away from the combustion chamber, or to convey intake air into the combustion chamber.54. An internal combustion engine according to claim 53 , wherein the two-way port is configured selectively to either i) convey exhaust gas away from the combustion chamber and not to simultaneously convey intake air into the combustion chamber claim 53 , or ii) convey intake air into the combustion chamber and not to simultaneously convey exhaust gas away from the combustion chamber claim 53 , according to an engine setting.55. An internal combustion engine according to claim 53 , wherein the engine further comprises an exhaust port configured to be selectively opened and closed such that when the exhaust port is closed the two-way port is configured to convey exhaust gas away from the combustion chamber claim 53 , and when the exhaust port is open the exhaust port is configured to convey exhaust gas away from the combustion chamber and the two-way port is configured to convey intake ...

重载对置活塞发动机中的空气处理

具有直流扫气且被构造用于重载操作的二冲程循环对置活塞发动机中的空气处理布置包括与机械增压器串联的顺序布置的涡轮增压器，在一些方面，空气处理系统被装备有EGR通道。

2행정 회전 피스톤기관

본 발명은 자동차, 선박, 비행기, 발전기 등에 사용되는 회전 피스톤기관에 관한 것으로, 고정식 하우징; 내부 측벽을 갖는 하나의 원통형 슬리브와, 하단 헤드가 서로 마주보고 있는 2개 원통형 피스톤을 구비한 고정식 실린더블록; 일정 곡선으로 이루어진 닫힌 내부 작업면을 갖고, 하우징과 실린더블록에 의해 회전 가능하게 지지된 로터; 2개의 피스톤에 각각 연결된 2개의 트래버스; 트래버스 각각에 연결되고, 스프링의 힘으로 로터를 내리누르는 다수의 지지 롤러; 내부 측벽을 갖는 가이드 부싱으로 양단부가 막혀있고 내부 측벽을 갖는 2개의 고정식 오일펌프 튜브; 튜브에 오일을 공급하기 위한 오일 공급수단; 튜브에서 오일을 배출하기 위한 오일 배출수단; 튜브 각각의 내부에 미끄럼 가능하게 설치된 2개의 플런저; 및 오일 공급수단과 외부 틈새들을 연결하는 오일 드레인수단;을 포함

For the combustion chamber structure of opposed piston type engine

一种用于对置活塞发动机的燃烧室，该燃烧室包括在这些活塞的相对端部表面的圆周外围区域之间被限定的挤气区，由在这些端部表面中的一个或更多个凹钵限定的腔体，以及径向延伸通过该挤气区进入该腔体的至少一个喷射口。该腔体具有横截面形状，该形状对从该挤气区进入该腔体的气流施加滚转运动。

Free piston device

Engine with a variable volume chamber

本发明涉及一种发动机，其包括：汽缸，其有助于限定腔室(3)；第一活塞(4)，所述第一活塞(4)和汽缸进行第一相对往复运动；旋转输出轴(8)；第二活塞(14)，所述第二活塞(4)和汽缸进行第二相对往复运动，所述输出轴(8)与所述活塞(4、14)同轴地安装；第一转换装置(5)，其将所述第一相对往复运动转换为所述输出轴(8)的旋转运动，一方面，所述第一转换装置(5)包括第一波形引导轨迹(9)，另一方面，所述第一转换装置(5)包括第一引导元件(10)，所述第一引导元件(10)被设计为沿所述引导轨迹(10)位移；以及第一调整构件(5)，其对所述第一引导轨迹(9)进行定位。

High-efficiency linear combustion engine

本发明的各种实施例涉及一种线性内燃机，其包括：具有汽缸壁和一对末端的汽缸，该汽缸包括设在汽缸中间部分的燃烧段；一对相对设置的活塞组件，其适于在汽缸内线性运动，各个活塞组件与另一活塞组件相对地设在燃烧段的一侧上，各活塞组件包括弹簧杆和活塞，所述活塞包括位于燃烧段附近的实心前段和气体段；以及一对线性电磁电机，其适于直接将活塞组件的动能转换成电能，并且适于直接将电能转换成活塞组件的动能以用于在压缩行程期间提供压缩功。

High efficiency linear combustion engine

本发明的各种实施例涉及一种线性内燃机，其包括：具有汽缸壁和一对末端的汽缸，该汽缸包括设在汽缸中间部分的燃烧段；一对相对设置的活塞组件，其适于在汽缸内线性运动，各个活塞组件与另一活塞组件相对地设在燃烧段的一侧上，各活塞组件包括弹簧杆和活塞，所述活塞包括位于燃烧段附近的实心前段和气体段；以及一对线性电磁电机，其适于直接将活塞组件的动能转换成电能，并且适于直接将电能转换成活塞组件的动能以用于在压缩行程期间提供压缩功。

Compact ported cylinder construction for an opposed-piston engine

A compact construction for an opposed-piston engine includes a cylinder liner with longitudinally-spaced exhaust and intake ports in which the exhaust port has inner and outer edges presenting a port height that causes the exhaust port to be fully open before a piston associated with the exhaust port reaches bottom dead center during an expansion stroke and the end surface of the associated piston to be spaced outwardly of the outer edge when the piston is at bottom dead center.

Piston for an opposed-piston engine

In an opposed-piston engine, a piston has a top land. The piston top land has a non-cylindrical shape which affords more clearance with a piston bore to thrust and anti-thrust sides than to front-facing and rear facing sides.

PISTON ENGINE

Reciprocating engine.

Un motor de movimiento alternativo que tiene un cuerpo fijo y por lo menos un miembro giratorio y de movimiento alternativo. El motor también tiene por lo menos una cámara de combustión, y la cámara de combustión o cada cámara de combustión está definida entre al menos un miembro fijo conectado al cuerpo fijo y al menos un miembro giratorio y de movimiento alternativo. El miembro giratorio y de movimiento alternativo o cada miembro giratorio y de movimiento alternativo está acoplado al cuerpo fijo de tal manera que el movimiento alternativo del miembro giratorio y de movimiento alternativo o cada miembro giratorio y de movimiento alternativo produce una rotación del miembro giratorio y de movimiento alternativo o de cada miembro giratorio y de movimiento alternativo. El miembro giratorio y de movimiento alternativo o cada miembro giratorio y de movimiento alternativo está acoplado a un eje de salida de tal manera que solo el movimiento rotacional del miembro giratorio y de movimiento alternativo o de cada miembro giratorio y de movimiento alternativo es transferido al eje de salida.

Roller drive for machines

Variable compression ratio systems for opposed-piston internal combustion engines, and related methods of manufacture and use

Various embodiments of methods and systems for varying the compression ratio in opposed-piston engines are disclosed herein. In one embodiment, an opposed-piston engine can include a first phaser operably coupled to a first crankshaft and a second phaser operably coupled to a corresponding second crankshaft. The phase angle between the crankshafts can be changed to reduce or increase the compression ratio in the corresponding combustion chamber to optimize or at least improve engine performance under a given set of operating conditions.

Combustion chamber constructions for opposed-piston engines

Variable compression ratio systems for opposed-piston and other internal combustion engines, and related methods of manufacture and use

Various embodiments of methods and systems for varying the compression ratio in opposed-piston engines are disclosed herein. In one embodiment, an opposed- piston engine can include a first phaser operably coupled to a first crankshaft and a second phaser operably coupled to a corresponding second crankshaft. The phase angle between the crankshafts can be changed to reduce or increase the compression ratio in the corresponding combustion chamber to optimize or at least improve engine performance under a given set of operating conditions.

Multistage Combustion Hot Gas Vapor Pressure Differential Parallel Cylinder Counter Piston Engine For Natural Gas, Hydrogen And Other Fuels With Integrated Electric Generator.

Herkömmliche Verbrennungs-Motoren nutzen die Umgebungsluft mit 21% Sauerstoff und haben durch Kurbelwelle und Pleuelstangen hohe Kraftmomente quer zur Kolbenbewegung im Zylinder. Die Expansionskraft des Verbrennungsgasgemischs wirkt auf einer Seite gegen den Zylinderkopf. Gegenkolbenmotoren nutzen die Kräfte besser, verlieren aber bisher einen Teil des Vorteils durch ein aufwändiges Getriebe zur Koordination der gegenläufigen Kolbenbewegung. Der mehrstufige Parallel-Zylinder-Gegenkolben-Motor verbindet die Kolben über Wippen auf vier außenliegende Wipp-Achsen, die gemeinsam über ein Sternpleuelsystem mit dem Exzenter der zentralen Drehachse verbunden sind. Die Leistung wird durch Nutzung der in den Abgasen enthaltenen Energie in Heiß-Gas-, Dampf- und Druckdifferenz-Stufen sowie die in Zusammensetzung, Druck und Temperatur optimierte innere Atmosphäre des Systems maximiert. Ein Generator mit Doppel-Scheiben-Rotor und einem Platinen-Stapel-Stator mit gedruckten Wicklungen und integrierter Logik setzt die Bewegungsenergie verlustarm in elektrische Energie um. Das System eignet sich als Ersatz für herkömmliche Verbrennungsmotoren und ist stationär für Kraft-Wärme-Kopplung und mobil für den Antrieb von Hybridfahrzeugen optimal. Conventional combustion engines use the ambient air with 21% oxygen and have high torque moments through the crankshaft and connecting rods transversely to the piston movement in the cylinder. The expansion force of the combustion gas mixture acts on one side against the cylinder head. Opposed piston engines use the forces better, but so far lose part of the advantage through a complex gearbox to coordinate the opposing piston movement. The multi-stage parallel-cylinder opposed-piston engine connects the pistons via rockers to four outboard rocker axles, which are connected together via a star splitter system to the eccentric of the central axis of rotation. Performance is maximized by utilizing the energy contained in the exhaust gases in hot gas ...

A combustion chamber construction with dual mixing regions for opposed-piston engines

A combustion chamber construction for opposed-piston engines in which fuel is injected from two opposed injectors includes a dual mixing region construction with a respective mixing region for each injector and a coupling region between the two mixing regions through which the mixing regions communicate. In some aspects, the mixing regions are bulbous and are connected by a waist, or tunnel, region that is relatively narrower than the bulbous mixing chambers.

The opposed piston engine of air inlet crankshaft and exhaust crankshaft with offset

在对置活塞式发动机中，进气活塞曲轴轴线和排气活塞曲轴轴线二者都平行于中心气缸平面延伸，该中心气缸平面穿过发动机的气缸的中心点并沿着气缸的中心轴线延伸。进气活塞曲轴轴线和排气活塞曲轴轴线二者都从中心气缸平面偏移。连接到进气活塞曲轴的进气活塞和连接到排气活塞曲轴的排气活塞被布置成使得进气活塞在所述进气活塞从其下止点朝向其上止点移动时在如下时间关闭进气端口：该时间与排气活塞在所述排气活塞从其下止点朝向其上止点移动时关闭排气端口的时间基本相同。

Opposed piston engine with offset intake and exhaust crankshafts

在对置活塞式发动机中，进气活塞曲轴轴线和排气活塞曲轴轴线二者都平行于中心气缸平面延伸，该中心气缸平面穿过发动机的气缸的中心点并沿着气缸的中心轴线延伸。进气活塞曲轴轴线和排气活塞曲轴轴线二者都从中心气缸平面偏移。连接到进气活塞曲轴的进气活塞和连接到排气活塞曲轴的排气活塞被布置成使得进气活塞在所述进气活塞从其下止点朝向其上止点移动时在如下时间关闭进气端口：该时间与排气活塞在所述排气活塞从其下止点朝向其上止点移动时关闭排气端口的时间基本相同。

Internal combustion engine

Piston cooling for opposed-piston engines

Pistons for opposed-piston engines include an interior annular cooling gallery. The gallery is provided with inlet and drain passageways constructed to shield a jet of liquid coolant entering the gallery, thereby reducing interference between the incoming jet and liquid coolant circulating in the gallery.

Internal combustion engine

The invention relates to an engine ( 1 ) including: —a chamber ( 3 ) designed to accommodate a working fluid, —a first piston ( 4 ) defining the volume of said chamber ( 3 ), —a first passage ( 5 ) located in said first piston ( 4 ) to supply the chamber ( 3 ) with working fluid and/or to discharge from the chamber ( 3 ) the burned fluid resulting from the combustion of the working fluid, —a first valve ( 6 ) mounted on the first piston ( 4 ) to monitor the opening and closing of said first passage ( 5 ), —an output shaft ( 8 ) that engages with the first piston ( 4 ) to convert the motion of the first piston ( 4 ) into rotational motion of the output shaft ( 8 ), characterized in that the output shaft ( 8 ) and the first valve ( 6 ) engage to convert the motion of output shaft ( 8 ) into motion of the first valve ( 6 ).

Internal combustion engines

Un motor de combustión interna que comprende: al menos un cilindro; un par de émbolos alternos opuestos dentro del cilindro que forman una cámara de combustión entre ellos; un cigüeñal situado en un extremo del cilindro, en donde un movimiento alterno de los émbolos acciona el cigüeñal; y al menos un inyector de combustible dispuesto al menos parcialmente dentro del cilindro, teniendo el inyector de combustible una carcasa y una tobera que está situada dentro de la cámara de combustión y a través de la cual el combustible es expulsado hacia la cámara de combustión; donde la tobera del inyector de combustible sobresale hacia fuera desde una cara extrema de una carcasa del inyector en la dirección del eje del cilindro, de manera que la tobera está expuesta directamente dentro de la cámara de combustión y donde el inyector de combustible está fijado en el extremo del cilindro más alejado desde el cigüeñal y se proyecta en el cilindro desde ese extremo, a lo largo de o paralelo al eje central del cilindro, para colocar la tobera de inyector en una posición fijada que está dentro de la cámara de combustión cuando el volumen de la cámara de combustión está al mínimo, extendiéndose el inyector de combustible a través del émbolo más alejado del cigüeñal y estando este émbolo configurado para alternar a lo largo de la carcasa del inyector. An internal combustion engine comprising: at least one cylinder; a pair of alternating reciprocating pistons inside the cylinder that form a combustion chamber between them; a crankshaft located at one end of the cylinder, where an alternate movement of the pistons drives the crankshaft; and at least one fuel injector disposed at least partially inside the cylinder, the fuel injector having a housing and a nozzle that is located within the combustion chamber and through which the fuel is expelled into the combustion chamber; where the fuel injector nozzle protrudes outward from an end face of an injector housing in the direction of the ...

Method for controlling an air boosting apparatus in a two-stroke, opposed piston engine, and a two-stroke, opposed piston engine with an air boosting apparatus

A method includes operating an air boosting apparatus of a nvo-stroke, opposed piston engine as a function of one or more factors including a first engine speed, a first torque, demand, a first altitude, a first transient rate, and one or more first ambient conditions to provide a first pressure S ratio (PR} of pre-turbine pressure (PTP) versus turbocharger compressor discharge pressure (CDP} and a first air-to-fuel ratio (AFR).

EGR for 2-stroke cycle engine without supercharger

Load transfer point offset of rocking journal wristpins in uniflow-scavenged, opposed-piston engines with phased crankshafts

Load transfer point offset of rocking journal bearings in uniflow-scavenged, opposed-piston engines with phased crankshafts includes differing offsets for the load transfer points of opposed pistons. More specifically, under the condition that a first crankshaft leads the second crankshaft, an angular offset of a rocking journal wristpin of a piston coupled to the first crankshaft proportional to an offset of the first crankshaft relative to the second crankshaft is made to ensure adequate oil film thickness to the wristpin when it experiences a peak combustion pressure during a power stroke

Linear combustion engines with valve in piston

Linear generators with a piston having a valve are described herein. The linear generator includes a combustion module and at least one linear motor. The linear motor includes at least one piston having: a piston head with an opening therein; a piston skirt opposed to the piston head; a piston side wall extending between the piston head and the piston skirt, the piston side wall having at least one port therein. The piston also includes a valve mechanism movable relative to each of the piston head, the piston seat and the piston side wall. The valve mechanism includes a valve stem extending through the piston skirt and the interior piston volume into a mover shaft of the motor, and a valve head coupled to the valve stem and configured to cover the opening of the piston head.

Cam piston two-stage compressor

High-efficiency linear combustion engine

Exhaust management strategies for opposed-piston, two-stroke engines

Exhaust temperature management strategies for an opposed-piston, two-stroke engine with EGR are based on control of a ratio of the mass of fresh air and external EGR delivered to a cylinder to the mass of the trapped charge (density of the delivered charge multiplied by the trapped volume at port closing).

Engine crank and connecting rod mechanism

A crank and connecting rod mechanism having an angularly disposed connecting rod and mirror image gear sets, each comprising: a crank gear rotatably mounted on a crank gear shaft, having a crankpin pivotally connected to and driven by the connecting rod, the crankpin following the path of a roulette of a centered trochoid about a first stationary gear as the crank gear is driven about the first stationary gear and a crankshaft driven gear is driven about a second stationary gear, a counterbalanced radial arm affixed to a drive shaft at a pivot point of the counterbalanced radial arm, the counterbalanced radial arm driving the drive shaft at the pivot point and the crank gear shaft at an outer radial arm bearing, the drive shaft driving a drive shaft gear, which drives an output gear that drives an output shaft.

High-efficiency linear combustion engine

Various embodiments of the present invention are directed toward a linear combustion engine, comprising: a cylinder having a cylinder wall and a pair of ends, the cylinder including a combustion section disposed in a center portion of the cylinder; a pair of opposed piston assemblies adapted to move linearly within the cylinder, each piston assembly disposed on one side of the combustion section opposite the other piston assembly, each piston assembly including a spring rod and a piston comprising a solid front section adjacent the combustion section and a gas section; and a pair of linear electromagnetic machines adapted to directly convert kinetic energy of the piston assembly into electrical energy, and adapted to directly convert electrical energy into kinetic energy of the piston assembly for providing compression work during the compression stroke.

Lubrication device for internal combustion engine with power transmission via a cam curve track

A pushing force resistant apparatus of crankshaft

본 발명은 클러치 페달의 작동시 엔드 플레이에 의하여 크랭크축이 엔진의 전측방향으로 밀리지 않도록 함으로써 벨트류의 내구성을 향상시키고 엔진의 소음, 진동을 저감시킬 수 있도록 하기 위하여, In order to improve the durability of the belts and to reduce the noise and vibration of the engine by preventing the crankshaft from being pushed to the front side of the engine by the end play when the clutch pedal is operated, 실린더 블록의 외면으로부터 크랭크축의 리어 플랜지 측 메인 베어링 저널로 길게 형성되는 오일 공급홀과; 상기 오일 공급홀과 직교하며, 크랭크축의 리어 플랜지 측면으로부터 크랭크 아암 측으로 실린더 블록을 관통하여 형성되는 오일 유통홀과; 상기 리어 플랜지 측면과 실린더 블록 사이에 오일이 머무를 수 있도록 실린더 블록의 리어 커버와 리어 플랜지 사이에 개재되는 실링재와; 상기 오일 공급홀을 통해 공급되는 오일의 압력에 의하여 상기 오일 공급홀과 상기 오일 유통홀의 교차부를 개폐할 수 있도록 그 축방향으로 관통홀을 갖추고서 상기 오일 공급홀 내측으로 설치되는 피스톤과; 상기 오일 공급홀을 통하여 상기 피스톤에 작용하는 오일의 압력에 대항하여 상기 피스톤을 탄지하는 탄성부재;를 포함하여 이루어지는 크랭크축의 밀림 방지 장치를 제공한다. An oil supply hole elongated from the outer surface of the cylinder block to the rear flange side main bearing journal of the crankshaft; An oil distribution hole orthogonal to the oil supply hole and formed through the cylinder block from the rear flange side of the crank shaft to the crank arm side; A sealing member interposed between the rear cover and the rear flange of the cylinder block to allow oil to stay between the rear flange side and the cylinder block; A piston installed inside the oil supply hole with a through hole in an axial direction thereof to open and close an intersection of the oil supply hole and the oil distribution hole by the pressure of the oil supplied through the oil supply hole; It provides a crankshaft anti-roll device comprising a; an elastic member for holding the piston against the pressure of the oil acting on the piston through the oil supply hole.

Diesel engine cold starting system and methods

Methods and systems for supplying starting a diesel engine that does not include glow plugs are described. In one example, a flow through a cylinder is limited during engine cranking to heat charge in a cylinder. In another example, a compressor is activated and air supplied to engine cylinders is heated via the engine and the compressor and recirculated to improve engine starting.

High-efficiency linear combustion engine

OPPOSITE PISTON MOTOR CYLINDER WITH CARBON SCRAPER

Se proporciona tecnología para un cilindro con un rascador de carbono para su uso en un motor de pistón opuesto. El cilindro incluye un cuerpo de cilindro que tiene un primer orificio de pistón y un segundo orificio de pistón que se extienden a lo largo de un eje central para el movimiento en vaivén de los correspondientes primer y segundo pistones en los mismos. Un orificio de cámara está situado entre el primer y segundo orificio de pistón y la primera y la segunda ranura anular está situada en extremos opuestos del orificio de cámara

Minimizing oil leakage from rocking journal bearings of two-stroke cycle engines

A rocking journal bearing is provided in a piston coupling mechanism of a two-stroke cycle engine. The bearing includes a sleeve and a wristpin constructed with two sets of eccentrically-disposed bearing surfaces which alternate in accepting a compressive load during an operational cycle of the bearing. The sleeve includes a network of grooves to transport oil to the bearing surfaces. Lubricating oil flow through the bearing is minimized by limiting provision of pressurized oil from the wristpin to the network of grooves to portions of the cycle when one or the other of the sets of bearing surfaces receives the compressive load.

Fuel injection spray patterns for opposed-piston engines

A combustion chamber for an opposed-piston engine includes a squish zone defined between circumferential peripheral areas of opposing end surfaces of the pistons, a cavity defined by one or more bowls in the end surfaces, and at least one injection port that extends radially through the squish zone into the cavity. The cavity has a cross-sectional shape that imposes a tumbling motion on air flowing from the squish zone into the cavity. Opposing spray patterns of fuel are injected into the combustion chamber. Charge air is admitted into the bore from the intake port (224) as the pistons move from respective bottom dead center positions in the bore, a tumble component (343) is added to the motion of the air in the combustion chamber (300), and spray patterns (381) of fuel (248) are injected into the combustion chamber (300) in opposing radial directions of the cylinder.

Piston cooling for opposed-piston engines

Pistons for opposed-piston engines include an interior annular cooling gallery. The gallery is provided with inlet and drain passageways constructed to shield a jet of liquid coolant entering the gallery, thereby reducing interference between the incoming jet and liquid coolant circulating in the gallery.

Opposed piston engine with offset inlet and exhaust crankshafts

In an opposed piston engine, an inlet piston crankshaft axis and an exhaust piston crankshaft axis both ex tend parallel to a central cylinder plane extending through a centerpoint of a cylinder of the engine and along a central axis of the cylinder. The inlet piston crankshaft axis and the exhaust piston crankshaft axis are both offset from the central cylinder plane. The inlet piston and the exhaust piston linked to the inlet piston crankshaft and the exhaust piston crankshaft are arranged so that the inlet piston closes an inlet port as the inlet piston moves from its bottom dead center toward its top dead center at substantially a same time as the exhaust piston closes the exhaust port as the exhaust piston moves from its bottom dead center toward its top dead center.

Opposed piston engine

本文公开了一种对置活塞发动机，该对置活塞发动机包括：可移动地置于第一膛内的第一活塞；可移动地置于第二膛内的第二活塞，第一活塞面朝第二活塞以确定其间的燃烧室；可操作地耦合到第一活塞的第一机轴；可操作地耦合到第二活塞的第二机轴；第一移相器，其可操作地耦合到第一机轴，第一移相器的运行改变在发动机运行中第一机轴相对于第二机轴的相角；以及第二移相器，其可操作地耦合到第二机轴，第二移相器的运行改变在发动机运行中第二机轴相对于第一机轴的相角。机轴之间的相角可以被改变以减小或增大相应燃烧室内的压缩比，从而最优化或至少改善已知操作条件集合下的发动机性能。

Engine with a variable volume chamber

本发明涉及一种发动机，其包括：汽缸，其有助于限定腔室(3)；第一活塞(4)，所述第一活塞(4)和汽缸进行第一相对往复运动；旋转输出轴(8)；第二活塞(14)，所述第二活塞(4)和汽缸进行第二相对往复运动，所述输出轴(8)与所述活塞(4、14)同轴地安装；第一转换装置(5)，其将所述第一相对往复运动转换为所述输出轴(8)的旋转运动，一方面，所述第一转换装置(5)包括第一波形引导轨迹(9)，另一方面，所述第一转换装置(5)包括第一引导元件(10)，所述第一引导元件(10)被设计为沿所述引导轨迹(10)位移；以及第一调整构件(5)，其对所述第一引导轨迹(9)进行定位。

Fuel injection spray patterns for opposed-piston engines

用于对置活塞发动机的燃烧室包括限定在活塞的相对端面的圆周周边区域之间的挤气区、由所述端面中的一个或更多碗限定的空腔、和径向延伸通过所述挤气区到所述空腔的至少一个喷射口。所述空腔具有横截面形状，该形状施加滚流运动到从所述挤气区流动到所述空腔中的空气上。相对喷洒模式的燃料被喷射至所述燃烧室中。在一些方面，所述相对喷洒模式沿着所述燃烧室的长轴线被喷射。

Internal combustion engine

Aircraft engine with opposed piston engine

An aircraft engine has a hollow driveshaft with a spool coaxial with the driveshaft and extending through the driveshaft to rotate independently of the driveshaft. A first harmonic cam is mounted on the driveshaft and a second spaced apart harmonic cam is mounted on the spool. At least one combustion cylinder is positioned between the cams along a combustion cylinder axis that is parallel with but radially spaced apart from the driveshaft. A piston assembly is disposed in each end of the combustion cylinder, with each piston assembly engaging a separate cam. A high-pressure compressor turbine is mounted on the driveshaft and driven by movement of a piston assembly, compressing air for the combustion cylinder. A rotating component is mounted on the spool and driven by movement of the other piston assembly. The rotating component may be another compressor turbine, a drive turbine, a fan or a propeller.