I.c. engine cam-in-block valve train with valves operated by individual pushrods actuated by a common cam follower

A multiple cylinder internal combustion engine 10, eg a vee engine with four valves per cylinder, has a valve train with a camshaft 12 disposed within an engine block 14 and cam followers 58, 58' pivotally mounted on a fixed shaft parallel to the camshaft 12. Each cam follower 58, 58' has a roller 64, 64' in contact with a cam lobe 70,70' and lifts two pushrods 56,56' to actuate gas exchange valves 28,28' via rocker arms 54,54'. For the right-hand cylinder of fig.1, the cam follower roller 64' is mounted in a housing 86' having a passage 61' to provide pressurized oil to a hydraulic lash adjuster 62' to adjust lash associated with the pair of pushrods 56'. Each valve thus has a dedicated lash adjuster in a common cam follower.

Coupling device for a valve actuator

Die vorliegende Erfindung betrifft eine Kopplungsvorrichtung für eine Ventilbetätigungsvorrichtung zur Betätigung wenigstens eines Ventils einer Hubkolbenmaschine mit veränderlichem Ventilhub, insbesondere für eine Ventilbetätigungsvorrichtung einer Hubkolbenbrennkraftmaschine, eine Ventilbetätigungsvorrichtung und eine Hubkolbenmaschine, wobei die Kopplungsvorrichtung ein erstes Kopplungselement, ein zweites Kopplungselement und eine Sperreinrichtung aufweist. Das erste Kopplungselement und das zweite Kopplungselement sind zumindest innerhalb definierter Grenzen entlang einer ersten Achse relativ zueinander verschiebbar, wobei mittels der Sperreinrichtung die Relativverschiebung der beiden Kopplungselemente zueinander entlang der ersten Achse zumindest in eine erste Richtung blockierbar ist. Die Sperreinrichtung weist ein zumindest in einem definierten Bereich in Umfangsrichtung um die erste Achse drehbares Sperrelement auf, wobei die Relativverschiebung der beiden Kopplungselemente entlang ...

Vehicle and propulsion system including an internal combustion engine

4-cycle engine

RECIPROCATING INTERNAL COMBUSTION ENGINE

Zum Bremsen benutzbarer Viertaktmotor für Fahrzeuge.

Zum Bremsen benutzbarer Viertaktmotor für Fahrzeuge.

METHOD AND SYSTEM FOR VARIABLE VALVE TIMING FOR A V-ENGINE WITH A SINGLE CENTRAL CAMSHAFT

INTERNAL COMBUSTION ENGINE COMPRISING HORIZONTAL VALVES

The invention relates to an internal combustion engine comprising a crankcase (2a, 2b), a cylinder (26) and cylinder head (32), and a valve drive unit that is provided with intake valves and discharge valves (28, 30) for controlling gas exchange. Said gas exchange valves monitor intake ducts or discharge ducts (36, 38) leading to a combustion chamber and can be actuated via a lever arrangement (46, 48) that is controlled by a camshaft (6). According to the invention, the lever arrangement (46, 48) for actuating the gas exchange valves (28, 30) is disposed laterally from the cylinder (26) while the longitudinal axis of the gas exchange valves (28, 30) extends essentially perpendicular to the cylinder axis.

Vehicle and propulsion system including an internal combustion engine

An internal combustion engine for a vehicle, such as a motorcycle, includes a crankcase, two banks of cylinders projecting from the crankcase in a 56-57 degree V-configuration, a plurality of pushrods, and a plurality of camshafts supported by the crankcase. The two banks of cylinders include a first cylinder bank that projects from the crankcase to a first cylinder head, and a second cylinder bank that projects from the crankcase to a second cylinder head. The plurality of intake and exhaust valve pushrods extend between the crankcase and the first and second cylinder heads, driven by one intake camshaft and two exhaust camshafts.

Distributed Load Bearing with an Inner Flex Ring

A distributed load bearing including a roller, an inner flex ring, a pin and a load distribution spring. The inner flex ring is positioned radially inwards of the roller, and the pin is positioned radially inwards of the inner flex ring, and the load distribution spring is positioned in a cavity defined by the pin and the inner flex ring. The load distribution spring is preloaded, so as to apply a force to the pin and so as to apply a plurality of radially outward forces to the inner flex ring.

ДВИГАТЕЛЬ С ВНЕШНЕЙ СМАЗКОЙ КУЛАЧКОВ

РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2015 145 722 A (51) МПК F02B 75/00 (2006.01) F01M 1/06 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2015145722, 26.10.2015 (71) Заявитель(и): Форд Глобал Текнолоджиз, ЛЛК (US) Приоритет(ы): (30) Конвенционный приоритет: 29.10.2014 US 14/526,946 Адрес для переписки: 197101, Санкт-Петербург, а/я 128, "АРСПАТЕНТ", М.В. Хмара Стр.: 1 A 2 0 1 5 1 4 5 7 2 2 R U A (57) Формула изобретения 1. Двигатель с отключаемыми цилиндрами, содержащий: блок цилиндров и головку, определяющие первый и второй цилиндры, причем второй цилиндр выполнен с возможностью выборочного отключения во время работы двигателя; верхний впускной распределительный вал, содержащий пару впускных кулачков, связанных с впускными клапанами второго цилиндра; верхний выпускной распределительный вал, содержащий пару выпускных кулачков, связанных с выпускными клапанами второго цилиндра; и несущую пластину распределительного вала и крышку держателя распределительного вала, совместно обеспечивающие опору коренных подшипников впускного и выпускного распределительных валов, причем крышка держателя определяет канал, содержащий вход, соединенный по текучей среде со смазочным проходом, связанным с одним из подшипников, причем канал содержит пару выходов, расположенных на удалении от внешних поверхностей пары выпускных кулачков, для их внешней смазки. 2. Двигатель по п. 1, отличающийся тем, что канал крышки держателя представляет собой открытый канал, при этом уплотнительная грань несущей пластины замыкает указанный открытый канал. 3. Двигатель по п. 1, отличающийся тем, что для кулачков, связанных с клапанами первого цилиндра, предусмотрена внутренняя смазка. 4. Двигатель по п. 1, отличающийся тем, что смазочный проход подшипника связан с выпускным распределительным валом. 5. Двигатель по п. 1, отличающийся тем, что вход канала по существу перпендикулярен оси вращения выпускного распределительного вала. 6. Двигатель по п ...

Motor und Motorbetriebsverfahren

Motor (10), der Folgendes aufweist: ein Gehäuse (12) mit einer Brennkammer (24); eine Brennstoffeinspritzvorrichtung (60) zum Liefern von Brennstoff direkt oder indirekt in die Brennkammer; und ein Motorschmiermittelliefersystem (22), welches betreibbar ist, um Motorschmiermittel auf die Brennstoffeinspritzvorrichtung auszustoßen.

Dieselmotor und Verfahren zur flexiblen passiven Regeneration von Abgasnachbehandlungsvorrichtungen

Ein Dieselmotor und ein Verfahren zum Betreiben eines Dieselmotors mit der Fähigkeit zur Regeneration der Abgasnachbehandlungsvorrichtung sind offenbart. Der Dieselmotor kann eine Abgasnachbehandlungsvorrichtung wie beispielsweise einen Dieselpartikelfilter zum Beseitigen von Ruß aus den Verbrennungsgasen, die durch den Motor ausgestoßen werden, verwenden. Um die Abgasnachbehandlungsvorrichtung zu regenerieren, wird die Temperatur der Abgase ausreichend erhöht durch Verwendung mehrerer Kompressions- und Expansionstakte des Kolbens in bestimmten Motorzyklen, wobei ein Verbrennungsvorgang jedem Paar von Verdichtungs- und Expansionstakt zugeordnet ist. Der Motor kann in einem Viertaktzyklus mit einer Verbrennung während eines konventionellen Leistungsbetriebs betrieben werden, und zu einem erweiterten Verbrennungszyklus während der Regeneration umgeschaltet werden. Der erweiterte Verbrennungszyklus kann acht Takte mit drei Verbrennungsvorgängen umfassen. Der Motor kann zwischen den Zyklen ...

MECHANICAL GAS DISTRIBUTION ARRANGEMENT FOR THE AUTOMATIC CHANGE OF INJECTION AND EXHAUST VALVE IMPULSE

АВТОМОБИЛЬНЫЕ И САМОХОДНЫЕ УСТАНОВКИ, ОСНАЩЕННЫЕ ДВИГАТЕЛЕМ ВНУТРЕННЕГО СГОРАНИЯ

An internal combustion engine (300) for a vehicle, such as a motorcycle (20), includes a crankcase (380), two banks of cylinders (320a, 320b) projecting from the crankcase (380) in a V-configuration, a plurality of pushrods (364), and a plurality of camshafts (360a, 360b, 360c) supported by the crankcase (380). The two banks of cylinders (320a, 320b) include a first cylinder bank that projects from the crankcase (380) to a first cylinder head (340a), and a second cylinder bank that projects from the crankcase (380) to a second cylinder head (340b). The plurality of pushrods (364) extend between the crankcase (380) and the first and second cylinder heads (340a, 340b), and the plurality of camshafts include only the first, second and third camshafts (360a, 360b, 360c).

METHOD AND SYSTEM (VERSIONS) FOR CHANGING TIMING PHASES VALVES FOR V-ENGINE WITH ONE CENTRAL DISTRIBUTING SHAFT

АВТОМОБИЛЬНЫЕ И САМОХОДНЫЕ УСТАНОВКИ, ОСНАЩЕННЫЕ ДВИГАТЕЛЕМ ВНУТРЕННЕГО СГОРАНИЯ

Двигатель внутреннего сгорания (300) транспортного средства, такого как мотоцикл (20), содержит картер (380), два блока цилиндров (320а, 320b), установленных на картере (380) в V-образном виде, множество толкателей (364) и множество кулачковых валов (360а, 360b, 360с), установленных в картере (380). Два блока цилиндров: (320а, 320b) первый блок цилиндра с головкой цилиндра (340а) установлен на картере (380), и второй блок цилиндра с головкой цилиндра (340b) установлен на картере (380). Толкатели (364) установлены в пространстве между картером (380) и головками цилиндров первой и второй (340а, 340b), кулачковых валов в двигателе три: первый, второй и третий (360а, 360b, 360с).

VALVE DRIVE FOR AN INTERNAL COMBUSTION ENGINE

A valve drive of an internal combustion engine may include a camshaft, at least one cam follower, at least one adjusting device, and a hydraulic actuating element. The camshaft may include at least one first cam structured as a brake cam and a second cam structured as an exhaust cam. The at least one first cam may have a reduced cam lift relative to the second cam. The at least one cam follower may be connected to an exhaust valve of the internal combustion engine via a rocker. The hydraulic actuating element may be adjustable to an extended position and a retracted position. In the extended position, the hydraulic actuating element may be operatively connected to the brake cam providing a braking stroke and, in the retracted position, the hydraulic actuating element may be decoupled from the brake cam providing a cylinder cutout. 1. A valve drive of an internal combustion engine , comprising:a camshaft and at least one cam follower;the camshaft including at least one first cam non-rotatably coupled on the camshaft and a second cam arranged axially adjacent thereto relative to the camshaft;the at least one cam follower, in a first position, drive-connected to the at least one first cam and, in a second position, drive-connected to the second cam;at least one adjusting device;the second cam structured as an exhaust cam and the at least one first cam structured as a brake cam having, relative to the second cam, a reduced cam lift;wherein the at least one cam follower is connected to an exhaust valve of the internal combustion engine via a rocker; andwherein on one of the rocker and a valve bridge of the exhaust valve a hydraulic actuating element is disposed, the hydraulic actuating element adjustable to an extended position and a retracted position, wherein in the extended position the hydraulic actuating element is operatively connected to the brake cam providing a braking stroke, and in the retracted position the hydraulic actuating element is decoupled from the ...

COMBINATION INTERNAL COMBUSTION ENGINE AND AIR COMPRESSOR

... 1466311 IC engine alternatively operable as air compressor T UENO 31 Jan 1974 [1 Feb 1973] 04479/74 Headings F1B, F1F and F1N A combination internal combustion engine and air compressor having two or more compression chambers each able to function in a first operating mode as a combustion chamber and in a second operating mode as an air compressing chamber, for compressing air without admixture of fuel when the combination is driven by running inertia of the combination, and means comprising an axially displaceable cam-shaft to change a valve timing of the combination for changing between the first and second modes of operation, the two or more compression chambers as a whole being operable both or all as combustion chambers, both or all as air compression chambers and alternatively one or more as combustion chambers and the other or others as air compressing chambers. Fig. 1 shows an engine having a divided cam-shaft, part 12G of which operates the valves of fdur cylinders while part 12H ...

Verfahren zur Herstellung eines Nockenwellenverstellers

Die Erfindung betrifft ein kalibrierschrittfreies Verfahren zur Herstellung eines Nockenwellenverstellers (1) umfassend einen Stator (6), einen relativ dazu verdreh- baren Rotor (7) und ein Steuerventil (23), wobei der Rotor (7) und/oder der Stator (6) nach einem pulvermetallurgischen Verfahren hergestellt wird oder werden, wo- bei der Stator (6) im Bereich einer Passfläche (33) für die Anlage der Nockenwelle (32) und/oder der Rotor (7) im Bereich einer Passfläche (36) für die Anlage der Nockenwelle (32) und/oder im Bereich einer Passfläche (37) für die Anlage des Steuerventils (23) und/oder das Steuerventil (23) im Bereich einer Dichtfläche (38) mit einer Toleranz hergestellt wird oder werden, dass zwischen der Passfläche (33, 36) für die Nockenwelle (32) und der Nockenwelle (32) und/oder dass zwischen der Passfläche (37) für die Anlage der Dichtfläche (38) des Steuerventils (23) und dieser Dichtfläche (38) des Steuerventils (23) eine Spielpassung mit einem maximalen Spiel von 100 µm ausgebildet ...

DEVICE FOR THE CONTROLLING OF THE ENTERPRISE OF A COMBUSTION ENGINE

CONVERTIBLE ENGINE AND AIR COMPRESSOR APPARATUS ADAPTED TO BE USED FOR A TRANSPORT MEANS

TWO-STROKE ENGINE

The two-stroke engine (10) has a plurality of intake passages (40a, 40b) extending from the external air inlet port through the crankcase (12), separating the intake air charge from the air and oil vapor within the crankcase (12). The piston (44) has one or more corresponding inlet tubes (48a, 48b) depending therefrom that telescope within the crankcase intake passages (40a, 40b) as the piston (44) reciprocates. All intake air travels through these passages (40a, 40b) and is separated from the remainder of the crankcase volume. The incoming air charge passes through a concentric poppet valve (52) in the piston crown (54) to enter the combustion chamber (58). Fuel is provided by conventional direct or port injection and ignition is provided by one or more conventional spark plugs. Exhaust exits the combustion chamber (58) through a poppet valve (60) in the cylinder head (18), the poppet valve (60) being actuated by a rocker arm (68) and pushrod (66) from a crankshaft driven cam (62).

Vehicle and propulsion system including an internal combustion engine

An internal combustion engine (300) for a vehicle, such as a motorcycle (20), includes a crankcase (380), two banks of cylinders (320a, 320b) projecting from the crankcase (380) in a V-configuration, a plurality of pushrods (364), and a plurality of camshafts (360a, 360b, 360c) supported by the crankcase (380). The two banks of cylinders (320a, 320b) include a first cylinder bank that projects from the crankcase (380) to a first cylinder head (340a), and a second cylinder bank that projects from the crankcase (380) to a second cylinder head (340b). The plurality of pushrods (364) extend between the crankcase (380) and the first and second cylinder heads (340a, 340b), and the plurality of camshafts include only the first, second and third camshafts (360a, 360b, 360c).

CONCENTRIC CAMSHAFT WITH ELECTRIC PHASE DRIVE

A concentric camshaft with electric phase drive allows the angular position of a first set of cam lobes to be advanced or retarded with respect to the angular position of a drive sprocket and allows the angular position of a second set of cam lobes to be advanced or retarded with respect to the angular position of the drive sprocket, the advancement or retardation of the first and second sets of cam lobes being independent of each other. The electric phase drive permits the advancement and retardation of the sets of cam lobes to be performed, as desired, independently of the operating speed or condition of the engine in which the concentric camshaft is installed.

ENGINE

An engine includes: a cylinder head; a cam housing fastened to the cylinder head; a camshaft rotatably supported by the cam housing and supplied with lubricating oil; and a head cover fastened to the cam housing, wherein the cam housing includes a side wall extending along the camshaft, and an inner side surface of the side wall includes a recessed region recessed downward in a gravity direction.

Öldrucksteuersystem und -verfahren für Motoren mit hydraulischer Zylinderabschaltung

Ein Ölschmier- und -steuersystem für einen Motor mit Zylinderabschaltstößeln, die mit dem Druck des ganzen Ölsystems betrieben werden, ist mit einem Hilfsüberdruckventil versehen, das sich öffnet, um den maximalen Öldruck in dem System zu steuern, wenn die Motordrehzahl und die Temperaturbedingungen jenseits der Möglichkeit der Ölpumpendrucksteuerungseinheit liegen, um die maximale Druckgrenze beizubehalten. Das Hinzufügen des Hilfsüberdruckventils erlaubt einen ausgedehnten Betrieb der Schaltstößel, die aufgrund ihres Aufbaus darauf begrenzt sind, unterhalb einer vorbestimmten Druckgrenze zu arbeiten. In einer bevorzugten Ausführungsform ist das Hilfsüberdruckventil in dem Motorkurbelgehäuse in einer Bohrung angebracht, die direkt mit der Hauptölleitung verbunden ist, um ein Anbringen und Betätigen des Hilfsüberdruckventils mit einem Minimum an Modifikationen an dem Motorölsystemaufbau bereitzustellen.

INTERNAL-COMBUSTION ENGINE WITH VARIABLE PISTON STROKE AND LINKAGE GEARING

METHOD AND SYSTEMS FOR VARIABLE VALVE TIMING FOR A V-ENGINE WITH A SINGLE CENTRAL CAMSHAFT

Various methods and systems are provided for varying valve timing in a V-engine. In one embodiment, a method for an engine comprises pivoting a first cam follower for a first cylinder of a first bank and a second cam follower for a second cylinder of a second bank about a rotatable pivot shaft, driving the first cam follower and the second cam follower with a camshaft to operate a respective first valve of the first cylinder and a second valve of the second cylinder, and rotating the pivot shaft to vary a valve timing of the first cylinder and the second cylinder. cl Cc~J el 6 -v LL ...

METHOD AND SYSTEMS FOR VARIABLE VALVE TIMING FOR A V-ENGINE WITH A SINGLE CENTRAL CAMSHAFT

Various methods and systems are provided for varying valve timing in a V-engine. In one embodiment, a method for an engine comprises pivoting a first cam follower for a first cylinder of a first bank and a second cam follower for a second cylinder of a second bank about a rotatable pivot shaft, driving the first cam follower and the second cam follower with a camshaft to operate a respective first valve of the first cylinder and a second valve of the second cylinder, and rotating the pivot shaft to vary a valve timing of the first cylinder and the second cylinder. cl Cc~J el 6 -v LL ...

POWDERED METAL CAMSHAFT ASSEMBLY

A camshaft assembly comprising a shaft (14), a lobe (16), a gear (18), and a boss portion (20) is disclosed. The lobe (16) includes a first powdered metal and has a first density, while the gear (18) includes a second powdered metal and has a second density. The boss portion (20) is formed on one of the lobe or gear, and has an aperture sized to cooperate with the shaft (14) and a periphery cooperating with the other of the lobe or gear to fix the lobe against rotation relative to the gear. The boss portion (20) has a third density less than the density of the lobe or gear on which the boss portion is formed. A method of making a camshaft component is also disclosed.

Diesel engine

在从多喷口结构的燃料喷射喷嘴（4）向产生吸入空气的涡流W的燃烧室（15）内直接喷射燃料以形成多个燃料喷雾（45、46）的柴油发动机（1）中，配备有减少来自于相邻设置的喷口（34a、35a）的燃料喷雾（45、46）的重叠的避免重叠结构，作为该避免重叠结构，设置气门配气正时机构（17），该气门配气正时机构将作为将空气吸入到前述燃烧室（15）内的进气门（3c、3c）的关闭气门动作的开始点的时刻（29a、50a、51a）设定在进气下止点（B）之前，并且，在前述关闭气门动作中，设置将前述进气门（3c、3c）的就位速度减速以缓和就位的冲击的缓冲区间（52），将作为该缓冲区域（52）的开始点的时刻（51c）设定在进气下止点（B）之前。

Oil pressure control system and method for engines with hydraulic cylinder deactivation

An oil lubrication and control system, for an engine having cylinder deactivation switching lifters operated at the pressure of the full oil system, is provided with an auxiliary pressure relief valve which opens to control maximum oil pressure in the system whenever the engine speed and temperature conditions lie beyond the ability of the oil pump pressure control unit to maintain the maximum pressure limit. Addition of the auxiliary pressure relief valve allows extended operation of the switching lifters, which are limited by their construction to operation below a prescribed pressure limit. In a preferred embodiment, the auxiliary pressure relief valve is mounted in the engine crankcase in a bore connected directly with the main oil gallery to provide mounting and actuation of the auxiliary pressure relief valve with a minimum of modifications to the engine oil system design.

Patent RU2015145722A3

ВУ” 2015145722” АЗ Дата публикации: 19.04.2019 Форма № 18 ИЗ,ПМ-2011 Федеральная служба по интеллектуальной собственности Федеральное государственное бюджетное учреждение ж 5 «Федеральный институт промышленной собственности» (ФИПС) ОТЧЕТ О ПОИСКЕ 1. . ИДЕНТИФИКАЦИЯ ЗАЯВКИ Регистрационный номер Дата подачи 2015145722/06(07037Т) 26.10.2015 Приоритет установлен по дате: [ ] подачи заявки [ ] поступления дополнительных материалов от к ранее поданной заявке № [ ] приоритета по первоначальной заявке № из которой данная заявка выделена [ ] подачи первоначальной заявки № из которой данная заявка выделена [ ] подачи ранее поданной заявки № [Х] подачи первой(ых) заявки(ок) в государстве-участнике Парижской конвенции (31) Номер первой(ых) заявки(ок) (32) Дата подачи первой(ых) заявки(ок) (33) Код страны 1. 14/526,946 29.10.2014 05 Название изобретения (полезной модели): [Х] - как заявлено; [ ] - уточненное (см. Примечания) ДВИГАТЕЛЬ С ВНЕШНЕЙ СМАЗКОЙ КУЛАЧКОВ Заявитель: Форд Глобал Текнолоджиз, ЛЛК, 05 2. ЕДИНСТВО ИЗОБРЕТЕНИЯ [Х] соблюдено [ ] не соблюдено. Пояснения: см. Примечания 3. ФОРМУЛА ИЗОБРЕТЕНИЯ: [Х] приняты во внимание все пункты (см. Примечания) [ ] приняты во внимание следующие пункты: [ ] принята во внимание измененная формула изобретения (см. Примечания) 4. КЛАССИФИКАЦИЯ ОБЪЕКТА ИЗОБРЕТЕНИЯ (ПОЛЕЗНОЙ МОДЕЛИ) (Указываются индексы МПК и индикатор текущей версии) РОТ. 1/053 (2006.01) Е01М 9/10 (2006.01) Е020 17/02 (2006.01) 5. ОБЛАСТЬ ПОИСКА 5.1 Проверенный минимум документации РСТ (указывается индексами МПК) Е011.1/00-Е011.1/46, ЕО11.9/00-Е011.9/04, ЕО11.13/00-Е01113/08, Е01М1/00-Е01М1/?28, Е01М9/00-Е01М9/12, ЕО2013/00-Е02013/08, 020 17/00-Е02017/04, Е02Е7/00 5.2 Другая проверенная документация в той мере, в какой она включена в поисковые подборки: 5.3 Электронные базы данных, использованные при поиске (название базы, и если, возможно, поисковые термины): РУ\У/Р1, Ебрасепес, Рабеагсь, КОРТО, ИЗРТО 6. ДОКУМЕНТЫ, ОТНОСЯЩИЕСЯ К ПРЕДМЕТУ ПОИСКА Кате- Наименование ...

Improvements in or relating to the combustion chambers of internal combustion engines, and means for supplying the charge thereto

... 518,856. Cylinders; regulating. PESCARA, R. P. Oct. 13, 1938. No. 29677. Convention date. Oct. 15, 1937. [Classes 7 (ii), 7 (iii) and 7 (vi)] A combustion chamber, substantially restricted to a side pocket 3, has two side admission valves 4 and a single overhead exhaust valve 5 which is arranged, either partially over the cylinder bore, as shown, or over the inlet valves. The admission valves may be of different size and fed by separate induction pipes leading from different carburetter choke tubes and throttle valves, the smaller only being in use at low speeds. The throttle valves are either connected for operation in succession from a single accelerator pedal, or connected to a centrifugal speed governor with a spring-controlledfollow-up device controlling the larger throttle. The two admission valves may be actuated by a single rocker, and in a V engine a single camshaft, arranged at the base of the V, actuates similar valves in the two cylinders. The piping may be so arranged that ...

Valve apparatus for an engine

Lifter providing improved cam lobe lubrication

Lifter providing improved cam lobe lubrication

A cam follower assembly (30) includes a cam roller (40), and a generally cylindrical body having an outer peripheral surface (31) configured to be reciprocally slidable within a bore of an engine component. The cam roller (40) is rotatably mounted on the body and configured to engage with a cam lobe (50) on a camshaft of the engine. The cam lobe (50) is operative to drive the body to a position at which the cam follower assembly (30) causes one of opening of a valve or actuation of a fuel injector of the engine. A groove (32) is formed in the body inset from the outer peripheral surface (31) and extending axially along the outer peripheral surface parallel to the longitudinal axis of the body and aligned with an axial median plane of the cam roller (40) and the cam lobe (50).

TWO-STROKE ENGINE

The two-stroke engine (10) has a plurality of intake passages (40a, 40b) extending from the external air inlet port through the crankcase (12), separating the intake air charge from the air and oil vapor within the crankcase (12). The piston (44) has one or more corresponding inlet tubes (48a, 48b) depending therefrom that telescope within the crankcase intake passages (40a, 40b) as the piston (44) reciprocates. All intake air travels through these passages (40a, 40b) and is separated from the remainder of the crankcase volume. The incoming air charge passes through a concentric poppet valve (52) in the piston crown (54) to enter the combustion chamber (58). Fuel is provided by conventional direct or port injection and ignition is provided by one or more conventional spark plugs. Exhaust exits the combustion chamber (58) through a poppet valve (60) in the cylinder head (18), the poppet valve (60) being actuated by a rocker arm (68) and pushrod (66) from a crankshaft driven cam (62).

Tappet

MODULAR CYLINDER HEAD FOR ENGINE BLOCKS

A modular cylinder head is configured for use with combustion engine block configurations each having different valvetrain oiling pathways. Thus, when used with “LA-style” engine blocks, oil receiving/delivery ports provided by the cylinder head are compatibly interfaced with an oil outlet port provided by the engine block, thus allowing oil to pass from the engine block into the head for delivery to a valvetrain carried thereby. Alternatively, when the head is used with “Magnum-style” engine blocks, the oil receiving/delivery ports of the head are not used. Rather, a pushrod and lifter having internal ports are used by the cylinder head to allow oil to pass from the engine block, through the internal ports of the lifter and pushrod, and into the valvetrain.

INTERNAL COMBUSTION ENGINE WITH LUBRICATION SYSTEM

An internal combustion engine for a vehicle, such as a motorcycle, includes a crankcase defining a sump, and a lubrication system scavenging oil from the crankcase and supplying oil to the crankshaft and to first and second cylinder heads. The lubrication system includes a pump with housing and rotor, the housing being fixed to the crankcase and the rotor being rotatable around a crankshaft axis and being rotated by the crankshaft. A plurality of oil supply passages extend through the crankcase, potentially including at least one being formed in the crankcase.

Verfahren zur Herstellung eines Nockenwellenverstellers

Die Erfindung betrifft ein kalibrierschrittfreies Verfahren zur Herstellung eines Nockenwellenverstellers (1) umfassend einen Stator (6), einen relativ dazu verdrehbaren Rotor (7) und ein Steuerventil (23), wobei der Rotor (7) und/oder der Stator (6) nach einem pulvermetallurgischen Verfahren hergestellt wird oder werden, wobei der Stator (6) im Bereich einer Passfläche (33) für die Anlage der Nockenwelle (32) und/oder der Rotor (7) im Bereich einer Passfläche (36) für die Anlage der Nockenwelle (32) und/oder im Bereich einer Passfläche (37) für die Anlage des Steuerventils (23) und/oder das Steuerventil (23) im Bereich einer Dichtfläche (38) mit einer Toleranz hergestellt wird oder werden, dass zwischen der Passfläche (33, 36) für die Nockenwelle (32) und der Nockenwelle (32) und/oder dass zwischen der Passfläche (37) für die Anlage der Dichtfläche (38) des Steuerventils (23) und dieser Dichtfläche (38) des Steuerventils (23) eine Spielpassung mit einem maximalen Spiel von 100 µm ausgebildet ...

Internal combustion engine having valve lifters with misalignment limiting end caps

An internal combustion engine (10) includes an engine housing (12) defining a cylinder (14), and a first and a second gas exchange valve (28, 30) for the cylinder (14), positioned within the engine housing (12). The engine (10) further includes a valve actuating mechanism (32) having a first and a second valve lifter (34, 36) reciprocating within adjacent lifter bores (16, 18) to actuate the first and second gas exchange valves (28, 30). Each of the first and second valve lifters (34, 36) includes an end cap (46, 48) having a misalignment limiting projection (50, 52), limiting rotation of the valve lifter (34, 36) in response to dynamic perturbation.

Valve apparatus for an engine

Disclosed is a valve apparatus 130 for controlling the opening and closing of a valve of an internal combustion engine 100. The valve apparatus comprises a camshaft 132 having a first cam 136 configured to open a valve 126 during a first cycle period of the internal combustion engine and a second cam 138 configured to open the valve during a second cycle period of the internal combustion engine and a controller 134 having at least a first mode of operation and a second mode of operation. The controller in the first mode of operation is configured to permit opening of the valve 126 by the first cam 136 and the second cam 138. The controller in the second mode of operation is configured to prevent opening of the valve by the first cam. The controller 134 may be a hydraulic controller. The arrangement is used to cause an exhaust valve to open slightly during the compression stroke of the engine to relieve pressure in a combustion chamber when an electronic control unit determines that the ...

Improvements in and relating to the lubrication of internal combustion engines

... 318,453. Arter, G. S., and James Cycle Co., Ltd. Dec. 27, 1928. Channels in internal-combustion engine parts. -Lubrication of the valve and timing-mechanism which is carried in a casing formed integral with or secured to the crank casings, is effected by supplying oil to troughs partly enclosing the cams which lift oil in their rotation. The valve and timing-mechanism is carried in the casing 2 attached to the crank casing 1 and oil supplied through passages 9, 10, 12 to the semi-circular troughs 8 is lifted by the cams 6 to their points of contact with the rockers and timing- mechanism. Oil is also supplied through the passage 11 to the bearing for the crank-shaft.

Valve operating mechanism with two cams

A valve operating mechanism is described for an internal combustion engine in which at least one valve 14a in each engine cylinder is operated by two cams 10a, 12a. The cams have respective cam followers 36a, 38a which act on the valve by way of a summation lever 24 in such a manner that the displacement of the valve 14a at any instant is determined by a combination of the displacements of the two cam followers 36a, 38a. The valve 14a is operated by a rocker 20 and movement of the cam followers 36a, 38a is transmitted to the rocker 20 by way of at least one pushrod 28a, 30a. The cams may be mounted coaxially, or on separate, parallel shafts. Phasing of the two cams allows valve lift and duration to be varied.

Engine and method for operating an engine

An engine (10) includes a housing (12) having a combustion chamber (24). The engine may also include a fuel injector (60) for supplying fuel directly or indirectly to the combustion chamber. Additionally, the engine may include an engine-lubricant-supply system (22) operable to discharge engine lubricant onto the fuel injector.

Engine and method for operating an engine

Lubricating device for engine

CAMSHAFT DEVICE AND METHOD FOR MANUFACTURING CAMSHAFT DEVICE

Cylinder head comprising a positioning means for a lower half-bearing

L’invention concerne une culasse assemblée (1) de moteur à combustion interne, comprenant - un corps de culasse (3) destiné à être monté sur un carter-cylindre du moteur ;- un couvre-culasse (2) couvrant ledit corps de culasse;- au moins un palier suspendu (5) comprenant un demi-palier supérieur (6) venu de matière avec le couvre-culasse (2), et un demi-palier inférieur (7) qui est une pièce séparée et rapportée au demi-palier supérieur (6); Selon l’invention, le demi-palier supérieur (6) comprend un premier trou de fixation supérieur (61) tandis que le demi-palier inférieur (7) comprend un premier trou taraudé inférieur (71), le premier trou de fixation supérieur (61) et le premier trou taraudé inférieur (71) étant destinés à recevoir une même vis de fixation (81). En outre, le corps de culasse (3) comprend un moyen de positionnement (9) disposé en vis-à-vis du premier trou de fixation supérieur (61) et présentant une partie de guidage apte à entrer dans le premier trou taraudé inférieur (71).Figure pour l’abrégé : figure 2 The invention relates to an assembled cylinder head (1) of an internal combustion engine, comprising - a cylinder head body (3) intended to be mounted on an engine crankcase; - a cylinder head cover (2) covering said cylinder head body - At least one suspended bearing (5) comprising an upper half-bearing (6) integrally with the cylinder head cover (2), and a lower half-bearing (7) which is a separate piece and attached to the half upper bearing (6); According to the invention, the upper half-bearing (6) comprises a first upper fixing hole (61) while the lower half-bearing (7) comprises a first lower tapped hole (71), the first upper fixing hole ( 61) and the first lower threaded hole (71) being intended to receive the same fixing screw (81). In addition, the cylinder head body (3) comprises a positioning means (9) disposed opposite the first upper fixing hole (61) and having a guide part capable of entering the first lower tapped hole ( Figure ...

배기밸브 구동장치 및 이것을 구비한 내연기관

... 배기밸브의 개폐타이밍을 가변으로 한 캠유압 구동방식을 채용한 데다 내연기관의 운전에 지장을 초래하지 않고 신뢰성이 높은 배기밸브 구동장치를 제공한다. 플런저(11)에는 플런저(11)가 작동유를 가압하는 가압실(29)부터 플런저(11)의 외주면에 위치하는 외주면 개구부(11d)까지 연통하는 연통구멍(12)이 형성되고, 제2 실린더(27)의 내주면에는 플런저(11)가 왕복운동하는 행정의 일부의 기간에 걸쳐 외주면 개구부(11d)에 대하여 연통하는 홈부(30)가 형성되고, 홈부(30)에는 작동유를 배출하기 위한 작동유 배출경로(31)가 접속되며, 작동유 배출경로(31)에는 배출량 조정밸브(33)가 설치되어 있다.

CAM SHAFT/CAM GEAR ASSEMBLY AND THRUST STRATEGY FOR ENGINE USING SAME

An engine (10) includes a camshaft (40) supported in a housing (11) for rotation about an axis of rotation. A cam gear (50) is attached to one end (44) of the camshaft (40) and includes a first thrust bearing surface (51). A thrust ring (60) is attached to the cam gear (50) and includes a second thrust bearing surface (61). A thrust ring retainer (73) is attached to the housing (11) with a plurality of bolts (82) and includes a pair of thrust surfaces trapped between the first thrust bearing surface (51) of the cam gear (50) and a second thrust bearing surface (61) of the thrust ring (60). The thrust ring retainer (73) also defines a portion of a lubrication connection passage (12) that facilitates pressure equalization among a plurality of lubrication galleries (13) arranged in parallel adjacent the camshaft (40).

Deactivating valve lifter

A valve lifter for an internal combustion engine comprises an outer body, an inner body and at least one pin. The inner body is movable with respect to the outer body, and the at least one pin is movable in response to hydraulic pressure into the groove to lock the outer body against movement relative to the inner body.

Phasensteller zur Änderung von Steuerzeiten einer Ventilsteuerung

Die Erfindung betrifft einen Phasensteller zur Änderung von Steuerzeiten einer Ventilsteuerung, umfassend ein einteiliges Gehäuse (4), eine Pumpvorrichtung (10), welche in das einteilige Gehäuse (4) integriert ist, und wenigstens ein weiteres Bauteil, welches in das einteilige Gehäuse (4) integriert ist.

Ventiltrieb für eine Brennkraftmaschine

Die Erfindung betrifft einen Ventiltrieb (1) einer Brennkraftmaschine (2),- wobei der Ventiltrieb (1) eine Nockenwelle (3) und wenigstens einen Nockenfolger (4) aufweist,- wobei die Nockenwelle (3) wenigstens einen drehfest auf der Nockenwelle (3) festgelegten ersten Nocken (5) und einen axial benachbart dazu angeordneten zweiten Nocken (6) aufweist.Erfindungswesentlich ist dabei,- dass der zweite Nocken (6) als Auslassnocken (6') und der erste Nocken (5) als Bremsnocken (5') mit im Vergleich zum zweiten Nocken (6) reduziertem Nockenhub ausgebildet ist,- dass der Nockenfolger (4) über einen Kipphebel (16) mit einem Auslassventil (15) verbunden ist,- dass an dem Kipphebel (16) oder an einer Ventilbrücke (17) des Auslassventils (15) ein hydraulisches Stellelement (18) vorgesehen ist, welches zwischen zwei Stellungen verstellbar ist, wobei es in der ersten Stellung mit dem Bremsnocken (5') wirkungsverbunden ist, während es in einer zweiten Stellung vom Bremsnocken (5') entkoppelt ist und eine ...

Nockenwellenverstelleranbindung an eine Doppelnockenwelle

Ventiltriebeinheit (11) mit einer Doppelnockenwelle (3) und einem hydraulischen Nockenwellenversteller (1) des Flügelzellentyps, mit einem mit einer Innenwelle (2) der Doppelnockenwelle (3) drehfest verbundenen Stator (4), wobei in dem Stator (4) ein stiftförmiges Verbindungselement (5) zur drehfesten Aufnahme der Innenwelle (2) formschlüssig aufgenommen ist, und mit einem relativ zu dem Stator (4) verdrehbaren mit einer Außenwelle (6) der Doppelnockenwelle (3) drehfest verbundenen Rotor (7), wobei das stiftförmige Verbindungselement (5) zum Ausgleich axialer Toleranzen und/oder eines relativen Verkippens der Wellen (2, 6) spielbehaftet in dem Stator (4) aufgenommen ist, das stiftförmige Verbindungselement (5) an zwei in Form von Nuten (10a, 10b) ausgebildeten Aufnahmebereichen (9a, 9b) des Stators (4) aufgenommen ist und das stiftförmige Verbindungselement (5) in einem in radialer Richtung verlaufenden Aufnahmeloch (34) der Innenwelle (2) aufgenommen ist.

Valve operating mechanism with two cams

Charge changing control device, reciprocating engine and method for operating a charge changing control device

TWO STROKE ENGINE WITH REGULAR LUBRICATION SYSTEM

This is a proposal for a two-stroke engine that incorporates advantages of both the two-stroke and four-stroke types of engines. The engine is lubricated exactly like a four- stroke engine; it has piston rings that lubricate the piston and the cylinder, i.e. the oil control ring, as well as all the customary lubricating parts such as the oil pan with the oil pump and the oil distribution system. The engine uses two camshafts, one for the intake valve and the other for the exhaust valve. The engine has a compressor, powered by the engine battery to compress ambient air before it enters into the combustion chamber. Additionally, the engine has an exhaust powered turbine connected to an alternator, which provides additional power for the engine battery. The engine is equipped with one or plurality of fuel-injection nozzles. The piston is of the two step type, which reduces friction between the piston and the cylinder. The operation of the engine is controlled by a computer, the Engine Control ...

Four-stroke engine

Efficient and economic heat engine e.g. four stroke four cylinder engine, for passenger car, has cylinder head operated directly or indirectly by camshaft, and exhaust valve positioned at upper part of cylinder

The engine has inlet valves including a rod (2) whose section is in oval shape. A head (1) of each inlet valve has shape of a cylinder (3), where the head is positioned at a bottom dead point of a head of the cylinder at certain height. The cylinder head is operated directly or indirectly by a camshaft (10). An exhaust valve is positioned at an upper part of the cylinder. A spring (4) is supported on the head of each inlet valve, and is supported on a wall of a crankcase (5). A joint (6) is placed on the crankcase for assuring sealing of the crankcase.

TWO-STROKE ENGINE

The two-stroke engine (10) has a plurality of intake passages (40a, 40b) extending from the external air inlet port through the crankcase (12), separating the intake air charge from the air and oil vapor within the crankcase (12). The piston (44) has one or more corresponding inlet tubes (48a, 48b) depending therefrom that telescope within the crankcase intake passages (40a, 40b) as the piston (44) reciprocates. All intake air travels through these passages (40a, 40b) and is separated from the remainder of the crankcase volume. The incoming air charge passes through a concentric poppet valve (52) in the piston crown (54) to enter the combustion chamber (58). Fuel is provided by conventional direct or port injection and ignition is provided by one or more conventional spark plugs. Exhaust exits the combustion chamber (58) through a poppet valve (60) in the cylinder head (18), the poppet valve (60) being actuated by a rocker arm (68) and pushrod (66) from a crankshaft driven cam (62).

TAPPET

The invention proposes a tappet (1), for a high-pressure fuel pump, having a housing (2), the drive input side (7), which serves as a cam run-on face, of which housing (2) incorporates a roller (8), wherein the drive output side (3), which serves as a contact surface for a tappet follower part, of said housing (2) bears against an underside (4) of a bridge piece (6) which projects through an inner casing (5) of the housing (2), wherein a rotation prevention means (11) which projects beyond the outer casing (10) of the housing (2) runs in a window (9) of said housing (2), which rotation prevention means (11) is formed by a radial elongation of the bridge piece (6), wherein a projection runs on the inner casing (5) of the tappet (1) only on a portion situated diametrically opposite the window (7), which projection is integrally connected and is produced by means of a punching and embossing process and rises in a wedge shape in the direction of the drive input side, and wherein that portion ...

Valve gear for IC engine with lower camshaft by varying the position of the cam follower rollers

A valve gear for an IC V-engine has a lower mounted camshaft (2) with cam followers(12) incorporating slotted guides (9) and with an adjusting linkage (10) for changing the contact point (4) for the cam followers and thereby adjusting the timing. The cam followers are linked to the valve gear by tilt levers (1) and pushrods (3).

Motor/Ventiltrieb mit an einer Welle angebrachten Nockenstößeln mit dualen unabhängigen Spielausgleichselementen

Ein Mehrzylinder-Verbrennungsmotor mit einem Ventiltrieb mit einer in einem Motorblock angeordneten Nockenwelle und mindestens zwei durch einen gemeinsamen Nockenwellennocken betriebenen Ventilen umfasst eine im Allgemeinen parallel zur Nockenwelle angeordnete feststehende Welle und einen Nockenstößel mit einem ersten Ende mit einer Öffnung, das schwenkbar an der feststehenden Welle angebracht ist, einem zweiten Ende, das zum Verbinden mit mindestens zwei Stößelstangen ausgelegt ist, die jeweils einem der mindestens zwei Ventile zugeordnet sind, und eine an einer im Allgemeinen zwischen dem ersten und dem zweiten Ende angeordneten Rollenachse angebrachte Rolle, wobei die Rolle den gemeinsamen Nockenwellennocken kontaktiert. Der Nockenstößel kann unabhängig betreibbare Spielausgleichselemente für von einem gemeinsamen Nockenwellennocken angetriebene Stößelstangen umfassen.

Verfahren zum Fügen einer Funktionsbaugruppe sowie Funktionsbaugruppe

Verfahren zum Fügen einer Funktionsbaugruppe (40), umfassend eine Rahmenstruktur (42), die zumindest eine Lagergasse (56) definiert, und zumindest eine gebaute Verbundwelle (10), die eine Hohlwelle (16) mit auf dieser drehfest festgelegten Anbauteilen (20) umfasst und an der Rahmenstruktur (42) gelagert ist, wobei das Verfahren die folgenden Schritte umfasst: – Bereitstellung einer Rahmenstruktur (42), insbesondere eines Lagerrahmens (46) oder eines Gehäuses (44), die eine Lagergasse (56) mit zumindest einem umfänglich geschlossenen Lagersitz (58) definiert, – Bereitstellung zumindest zweier Anbauteile (20), insbesondere einer Mehrzahl von Anbauteilen (20), – Bereitstellung einer Hohlwelle (16), die zumindest einen Tragabschnitt (78) für die zumindest zwei Anbauteile (20) aufweist, wobei die Anbauteile (20) einen an den Tragabschnitt (78) angepassten Aufnahmesitz (90) aufweisen, – Zuführen der Anbauteile (20) in die Lagergasse (56) in einer ersten Zuführrichtung (64), – Zuführen der Hohlwelle ...

Ventiltrieb für eine Brennkraftmaschine und Brennkraftmaschine

Ventiltrieb (10) für mindestens ein Gaswechselventil einer Brennkraftmaschine, wobei das jeweilige Gaswechselventil ausgehend von einer unten liegenden Nockenwelle (11) ansteuerbar ist, wobei der Ventiltrieb für jeweils mindestens ein anzusteuerndes Gaswechselwechselventil jeweils einen Kipphebel (14), eine Stoßstange (18) und einen Schwinghebel (19) aufweist, wobei der jeweilige Kipphebel (14) mit einem ersten Ende (16) auf das mindestens eine jeweilige anzusteuernde Gaswechselwechselventil einwirkt und mit einem zweiten Ende (17) mit der jeweiligen Stoßstange (18) verbunden ist, wobei die jeweilige Stoßstange (18) weiterhin mit dem jeweiligen Schwinghebel (19) in Wirkverbindung steht, und wobei der jeweilige Schwinghebel (19) an einem ersten Ende (20) desselben um eine Schwinghebeldrehachse (21) schwenkbar ist und an einem zweiten Ende (22) desselben eine Rolle (23) trägt, die um einen Rollendrehachse (24) drehbar ist und auf einem Nocken (12) der Nockenwelle (11) abrollt. Der jeweiligen ...

INTERNAL COMBUSTION PISTON ENGINE FOR AVIATION

An internal combustion engine for use with a propeller driven aircraft includes a camshaft adapted to function as an output shaft that rotates a propeller to provide propulsive thrust. A gear set is configured to transfer rotational power from the crankshaft to the camshaft and to rotate the camshaft at a velocity that is proportional to the rotational velocity of the crankshaft. The gear set is disposed rearward of the engine housing rearward wall and is configured to rotate the camshaft in a direction opposite the crankshaft rotation. The length of the camshaft reduces engine torsional vibration. In one embodiment, the engine is a six-cylinder compression ignition engine having a boxer configuration and can generate a peak output power within a range from about 300 horsepower to about 350 horsepower.

GAS-DISTRIBUTING MECHANICAL ARRANGEMENT AUTOMATICALLY CHANGING INJECTION AND EXHAUST GAS VALVE TIMING

Verbrennungsmotor mit einem in einem Zylinder ausgebildeten Brennraum

Die Erfindung betrifft einen Verbrennungsmotor mit einem in einem Zylinder (1) ausgebildeten Brennraum (3). Das Öffnen und Schließen des Ventils (4, 5) ist über eine Kontur (22) eines Nockens (16) gesteuert. Der Nocken (16) ist von der Kurbelwelle (19) angetrieben. Der Verbrennungsmotor umfasst eine Einrichtung (40) mit einem aus der Kontur (22) des Nockens (16) herausragenden Stellelement (36). Das Stellelement (36) liegt unterhalb einer Grenzdrehzahl in einer das Öffnen oder Schließen des Ventils (4, 5) ändernden ersten Lage (50) und oberhalb der Grenzdrehzahl in einer auf das Öffnen oder Schließen des Ventils (4, 5) wirkungsfreien zweiten Lage (51). Das Stellelement (36) ist unterhalb der Grenzdrehzahl in seiner ersten Lage (50) durch eine Verriegelungsvorrichtung (44) fixiert.

Internal combustion engine having valve lifters with misalignment limiting end caps

INTERNAL COMBUSTION PISTON ENGINE FOR AVIATION

An internal combustion engine for use with a propeller driven aircraft includes a camshaft adapted to function as an output shaft that rotates a propeller to provide propulsive thrust. A gear set is configured to transfer rotational power from the crankshaft to the camshaft and to rotate the camshaft at a velocity that is proportional to the rotational velocity of the crankshaft. The gear set is disposed rearward of the engine housing rearward wall and is configured to rotate the camshaft in a direction opposite the crankshaft rotation. The length of the camshaft reduces engine torsional vibration. In one embodiment, the engine is a six-cylinder compression ignition engine having a boxer configuration and can generate a peak output power within a range from about 300 horsepower to about 350 horsepower.

Direct fuel injection, two-valve per cylinder pushrod valvetrain combustion system for an internal combustion engine

4-CYCLE ENGINE

A 4 cycle engine includes a case (1) which is comprised of a first case half (3) and a second case half (8) which are connected at a parting plane with each other, the parting plane goes through the centerline of the crankshaft and is perpendicular to the centerline of the cylinder (7), a first bearing seat (19) and a second bearing seat (20) are respectively divided into a first upper bearing seat half (4), a second upper bearing seat half (5), a first lower bearing seat half (9) and a second lower bearing seat half (10) at the parting plane, the first upper bearing seat half (4), the second upper bearing seat half (5), the first lower bearing seat half (9) and the second lower bearing seat half (10) are integratedly molded on the first case half (3) and the second case half (8), respectively, the side cover (21) and the outer side surface of the first case half (3) define the valve-operating chamber (26) which receives the valve-operating mechanism (30).

Tappet

A tappet (1) for a high-pressure fuel pump having a housing (2), the drive input side (7), which serves as a cam run-on face. The housing (2) incorporates a roller (8), wherein the drive output side (3), which serves as a contact surface for a tappet follower part, of said housing (2) bears against an underside (4) of a bridge piece (6) which projects through an inner casing (5) of the housing (2), and a rotation prevention device (11) which projects beyond the outer casing (10) of the housing (2) extends in a window (9) of the housing (2). The rotation prevention device (11) is formed by a radial elongation of the bridge piece (6). A projection extends from the inner casing (5) of the tappet (1) only on a portion situated diametrically opposite the window (7), which projection is integrally connected and is produced by a punching and embossing process and rises in a wedge shape in a direction of the drive input side. The section (13) of the sheet-steel bridge piece (6) which is situated ...

Internal combustion engine valve seating velocity control

The present disclosure provides an engine having a gas exchange valve and an actuator for the gas exchange valve, and also a method of reducing valve seating impact velocity. The actuator includes a body having a fluid inlet and a fluid outlet. A plunger is reciprocable in the body and has a travel distance between an advanced position and a retracted position, the plunger and body defining a chamber. A flow restriction orifice is disposed in at least one of the plunger and the body, and the chamber is in unrestricted fluid communication with the outlet over a first portion of the travel distance and in restricted fluid communication with the outlet by way of the orifice over at least a second portion of the travel distance.

Variabler Ventilaktuator

Die Offenbarung betrifft ein Ventilbetätigungssystem. Ein Fluidaktuator (70) ist dazu ausgebildet, wahlweise ein Bewegen eines Ventils (32) aus einer speziellen Stellung zu verhindern. Eine Fluidquelle (84) ist in Fluidverbindung mit dem Fluidaktuator (70). Ein bidirektionales Ventil (82) ist dazu ausgebildet, einen Fluidstrom zwischen der Fluidquelle (84) und dem Fluidaktuator (70) zu steuern. Eine Fluidleitung (86) verbindet das bidirektionale Ventil (82) mit dem Fluidaktuator (70). Ein Rückschlagventil (90) ist in Fluidverbindung mit der Fluidleitung (86) und bewegbar zwischen einer Schließstellung zum Verhindern eines Fluidstroms durch die Fluidleitung (86), um einen Hochdruckkreislauf in dem Ventilbetätigungssystem zu erzeugen, und einer Freigabestellung zum Ermöglichen eines Fluidstroms durch die Fluidleitung (86), um einen Niederdruckkreislauf in dem Ventilbetätigungssystem zu erzeugen. The disclosure relates to a valve actuation system. A fluid actuator (70) is configured to selectively prevent movement of a valve (32) from a particular position. A fluid source (84) is in fluid communication with the fluid actuator (70). A bidirectional valve (82) is configured to control a flow of fluid between the fluid source (84) and the fluid actuator (70). A fluid line (86) connects the bidirectional valve (82) to the fluid actuator (70). A check valve (90) is in fluid communication with the fluid conduit (86) and movable between a closed position for preventing fluid flow through the fluid conduit (86) to create a high pressure circuit in the valve actuation system and a release position for allowing fluid flow through the fluid conduit (90). 86) to create a low pressure circuit in the valve actuation system.

Engine and method for operating an engine

CONVERTIBLE ENGINE AND AIR COMPRESSOR APPARATUS ADAPTED TO BE USED FOR A TRANSPORT MEANS

VALVE LIFTING ARRANGEMENT

A valve actuating assembly for opening and closing a valve includes a cam mounted on a camshaft and enclosed by a pair of rotary cam guides each of which includes a roller channel having an outer race for receiving opposed ends of a roller that extends transversely from the lowermost end of a valve lifter disposed between the cam guides with the lifter being mounted to a connecting rod. The lifter has a radius at the lowermost end for engagement with the cam during certain engine phases, and the connecting rod is pivotally attached to a rocker arm, and the rocker arm attached to a valve. A valve spring mounted on the stem of the valve extends and compresses coincident with the rotation of the cam guides and contact of the roller ends with the outer races of the cam guides thereby actuating the lifter to open and close the valve with positive force and wherein the point of contact for valve opening and closing transfers between the engagement of the roller ends with the outer races and the radius against the cam during the various engine phases with the valve spring holding the valve in the closed position during certain phases through the exertion of positive force.

Valve train for internal combustion engine

A system for varying valve timing; i.e. the rotational angle of the crankshaft during which an intake or an exhaust valve of a cylinder of a reciprocating internal combustion engine is open which results in varying valve overlap, and for varying valve lift of such intake and exhaust valves. A desmodromic cam and cam follower convert rotation of a cam shaft to reciprocating rotation, or oscillation, of the cam follower. The reciprocating rotation of the cam follower is converted by the interaction of a secondary cylindrical cam, a cylindrical control ring, and a reciprocating member to linear motion of the reciprocating member which reciprocating member is operatively connected to a poppet valve. Timing and lift of the reciprocating member and valve are variable over predetermined limits as a function of engine rpm and load by rotation of the cylindrical control ring. Each valve train positively closes as well as opens its associated valve.

Switchable swing arm

Schaltbarer Schwinghebel (10) für einen Ventiltrieb einer Brennkraftmaschine, aufweisend: ein erstes Hebelteil (20) mit einem ersten Schwenklager, über welches das erste Hebelteil um eine erste Drehachse (R1) schwenkbar an einem Gehäuse der Brennkraftmaschine abstützbar ist, und mindestens einer Laufrolle, die drehbar am ersten Hebelteil gelagert ist; ein zweites Hebelteil (30), das benachbart zum ersten Hebelteil angeordnet ist und ein zweites Schwenklager, über welches das zweite Hebelteil um eine parallel zur ersten Drehachse verlaufende zweite Drehachse (R2) schwenkbar am Gehäuse abstützbar ist, und eine Laufrolle hat, die drehbar am zweiten Hebelteil gelagert ist; und eine Kupplungseinrichtung (40) mit einer Schieberanordnung, die zum Schalten gesteuert verfahrbar ist, so dass die ersten und zweiten Hebelteile über die Schieberanordnung hinsichtlich ihrer jeweiligen Schwenkbewegungen selektiv miteinander kuppelbar und voneinander entkuppelbar sind.

V-Motor mit innenliegendem Doppelnockenwellensystem

Ein Verbrennungsmotor (100) umfasst ein Zylindergehäuse (102), das einen ersten Getriebezug (212) umfasst, der an einem vorderen Ende (232) des Zylindergehäuses (102) angeordnet ist, und einen zweiten Getriebezug (214), der an einem hinteren Ende (223) des Zylindergehäuses (102) angeordnet ist. Der erste Getriebezug (212) treibt eine erste Nockenwelle (202) an, und der zweite Getriebezug (214) treibt eine zweite Nockenwelle (204) an, wobei die erste und zweite Nockenwelle (202 und 204) jeweilige Drehachsen aufweisen, die parallel sind.

Charge changing control device, reciprocating engine and method for operating a charge changing control device

A charge changing control device 10 for a reciprocating engine, comprising at least one cam follower 26 configured for being pivotably actuated around a pivot axis (P) upon rotational movement of a camshaft 12, and an adjustment unit 36 configured for setting at least three different charge-changing modes of the device 10 by translationally displacing the pivot axis (P) relative to a rotational axis (R) of the camshaft 12. Preferably the device 10 is configured for setting the different charge-changing modes based on at least one of an engine’s operating condition and a property of fuel to be combusted in the engine; and the device is configured to switch the charge-changing mode when a knocking characteristic, in particular a knocking intensity, or an exhaust gas temperature has reached a predefined threshold value. Also claimed is a method for operating a charge changing control device.

Internal combustion engine having valve lifters with misalignment limiting end caps

COMBINATION ENGINE AND AIR COMPRESSOR APPARATUS

Roller bearing

The clearance between the outer peripheral surface of an annular portion of a cage and the inner peripheral surface of each of rib portions of outer-ring split pieces is set to be smaller than the clearance between the radial end surface of a projection portion of the cage and the inner peripheral surface of each of body portions of the outer-ring split pieces. When a centrifugal force due to engine rotation acts upon the cage, the inner peripheral surface of each of the rib portions of the outer-ring split pieces touches the outer peripheral surface of the annular portion of the cage before the inner peripheral surface of each of the body portions of the outer-ring split pieces touches the radial end surface of the projection portion of the cage. Thus, the radial displacement of the cage can be prevented in good time.

Link type variable stroke engine

In a link type variable stroke engine in which a piston, a crankshaft and an eccentric shaft are linked by a linking mechanism, a counterweight part (64) which is provided so that in a projection view on a plane orthogonal to an axis of a rotary shaft, a center of gravity (G1) of the counterweight part is located on an opposite side of the axis of the rotary shaft from an axis of the eccentric shaft (53) rotates together with the rotary shaft. Accordingly, it is possible to effectively suppress and lessen half- order inertial exciting force occurring at the eccentric shaft.

V-Motor

An engine valve train

4-cycle engine

V-type engine

In a V-type engine (E), intake and exhaust rocker arms (71a, 72a, 71b, 72b) in each bank (B1, B2) are arranged in a substantially inverted-V-shape in a plan view, so that side end portions of corresponding intake and exhaust push rods (44a, 44b, 45a, 45b) are positioned adjacent to each other. Slipper portions (48) of first and second intake cam followers (42a, 42b) have end portions at one end along the axial direction of a camshaft (38), protrude respectively in the opposite directions to each other so that they face each other across an intake cam (38i) therebetween. Slipper portions (48) of first and second exhaust cam followers (43a, 43b) have end portions at one end along the axial direction of the camshaft (38), protrude respectively in the opposite directions to each other so thatthey face each other across an exhaust cam (38e) therebetween.; This reduces the distance between the push rods (44a, 44b, 45a, 45b) in each bank to provide a compact valve-operating device.

ENGINE AND METHOD FOR OPERATING AN ENGINE

An engine (10) includes a housing (12) having a combustion chamber (24). The engine may also include a fuel injector (60) for supplying fuel directly or indirectly to the combustion chamber. Additionally, the engine may include an engine-lubricant-supply system (22) operable to discharge engine lubricant onto the fuel injector.

Internal Combustion Engine Having Valve Lifters With Misalignment Limiting End Caps

An internal combustion engine includes an engine housing defining a cylinder, and a first and a second gas exchange valve for the cylinder, positioned within the engine housing. The engine further includes a valve actuating mechanism having a first and a second valve lifter reciprocating within adjacent lifter bores to actuate the first and second gas exchange valves. Each of the first and second valve lifters includes an end cap having a misalignment limiting projection, limiting rotation of the valve lifter in response to dynamic perturbation.

BLOCK MOUNTED OVERHEAD CAM SUPPORT SYSTEM FOR INTERNAL COMBUSTION ENGINES

Systems, devices, and methods are disclosed for supporting one or more camshafts by the engine block in overhead arrangement relative to the cylinder heads and valve train. 1. An overhead cam support system , comprising:a carrier housing including a lower end positionable on an engine block independently of a cylinder head of the engine, the carrier housing rotatably supporting at least one camshaft on the engine block for engagement with at least one valve of the cylinder head.2. The overhead cam support system of claim 1 , further comprising a valve cover engaged to an upper end of the carrier housing that is opposite the lower end of the carrier housing.3. The overhead cam support system of claim 2 , wherein the carrier housing includes a flange extending over an upper surface of the cylinder head claim 2 , and further comprising a seal between the flange and an upper surface of the cylinder head.4. The overhead cam support system of claim 2 , wherein the carrier housing includes at least one cam support arm extending outwardly therefrom adjacent the upper end of the carrier housing claim 2 , and the camshaft is supported on the at least one cam support arm.5. The overhead cam support system of claim 4 , further comprising a camshaft retaining cap engaged to the cam support arm and the camshaft retaining cap extends around the at least one camshaft.6. The overhead cam support system of claim 1 , wherein the at least one camshaft includes first and second camshafts including respective ones of first and second cam gears or phasers that are engaged to an idler gear mounted to the carrier housing.7. The overhead cam support system of claim 1 , wherein the carrier housing includes first legs and second legs extending on opposite sides of the cylinder head and a first flange and a second flange extending along opposite sides of the cylinder head connecting the first legs and the second legs claim 1 , respectively.8. The overhead cam support system of claim 1 , wherein ...

Direct fuel injection, two-valve per cylinder pushrod valvetrain combustion system for an internal combustion engine

A pushrod valvetrain combustion system assembly for an internal combustion engine includes a two-valve pushrod assembly and a cylinder top that forms a portion of a cylinder head. The cylinder top has a single intake port, a single exhaust port, a spark plug bore, and a fuel injector bore. The pushrod assembly includes an intake valve positioned in the intake port and an exhaust valve positioned in the exhaust port. The intake port and exhaust port are positioned adjacent each other and are positioned along an axis that intersects a center point of each of the ports. The intersecting axis is rotated relative to a centerline of the crankshaft of the engine, providing space for the spark plug bore and fuel injector bore to both be located in the cylinder top on a same side of the intersecting axis.

Valve actuation system

A valve actuation system is disclosed for use with an internal combustion engine. The valve actuation system may have a rocker shaft, a rocker arm pivotally mounted on the rocker shaft, at least one cam follower and a pushrod connecting the at least one cam follower to the rocker arm. The valve actuation system may also have a plurality of gas exchange valves, and a bridge connecting the rocker arm to the valves. The valve actuation system may further have at least one spring disposed around each of the valves and configured to bias each of the valves toward closed positions, and a rotocoil configured to rotatably connect the at least one spring to each of the valves. The rotocoil may have an internal chamfer at a bridge end with an angle of about 26-28°. The at least one spring may have an assembled load of about 750-850 N.

Mechanically timed cylinder deactivation system

A system and method for mechanically timed cylinder deactivation includes an inner passage in the camshaft that supplies fluid for deactivating one or more valve opening mechanisms associated with the cylinders of an internal combustion engine.

Piston assembly retainer with integrated spring seat

A piston assembly for pressurizing a hydraulic chamber is provided. The piston assembly has a cylinder and a piston configured to reciprocate within the cylinder. The piston has a first end in the cylinder and a second end adapted to be acted on by a drive element. The piston assembly also has a spring configured to bias the piston. The piston assembly further has a retainer mounted to an exterior of the cylinder and including a seat surface. The spring is seated on the seat surface. The outer diameter of the spring is less than the outer diameter of the cylinder.

ENGINE WITH EXTERNAL CAM LUBRICATION

An engine, such as a variable displacement engine, has a camshaft retainer. The camshaft retainer has a cap adapted to cooperate with a carrier to support first and second overhead camshafts for rotation. The retainer cap forms a housing for a camshaft journal bearing. The retainer cap also forms a retainer land defining an open channel adapted to provide a jet of lubricating fluid from the bearing housing to externally lubricate a cam. The retainer land is adapted to mate with a sealing land of the carrier to enclose the open channel. 1. A variable displacement engine comprising:an engine block and head defining first and second cylinders, the second cylinder adapted to be selectively deactivated during engine operation;an intake overhead camshaft having an intake pair of cams associated with intake valves of the second cylinder;an exhaust overhead camshaft having an exhaust pair of cams associated with exhaust valves of the second cylinder; anda camshaft carrier plate and a retainer cap cooperating to support camshaft journal bearings of the intake and exhaust camshafts, the retainer cap defining a channel having an inlet in fluid communication with a lubrication passageway associated with one of the bearings, the channel having a pair of outlets spaced apart from outer surfaces of the exhaust pair of cams for external lubrication thereof.2. The engine of wherein the channel in the retainer cap is an open channel claim 1 , and wherein a sealing land of the carrier plate encloses the open channel.3. The engine of wherein cams associated with valves of the first cylinder are internally lubricated.4. The engine of wherein the lubrication passageway of the bearing is associated with the exhaust camshaft.5. The engine of wherein the inlet to the channel is generally perpendicular to a rotational axis of the exhaust camshaft.6. The engine of wherein the pair of outlets is generally perpendicular to the rotational axis of the exhaust camshaft.7. The engine of wherein the ...

CYLINDER HEAD ARRANGEMENT FOR VARIABLE VALVE ACTUATION ROCKER ARM ASSEMBLIES

A novel cylinder head arrangement for an in-line four cylinder or eight cylinder engine. A modified arrangement allows additional space for installation of wider rocker arm assemblies used for variable valve lift (VVL), cylinder deactivation (CDA) and other types of variable valve actuation (VVA). In one embodiment, cam towers adjacent the end two cylinders are not used. At least one end support is used, which may be an outboard bearing on a camshaft for each end. The wider rocker assemblies may then be installed. In another embodiment, cam towers adjacent the inner two cylinders are eliminated and a single camshaft support piece with a support bearing is installed between the inner cylinders to provide support for the camshafts. The wider rocker assemblies may then be installed on at least one of the middle cylinders. A novel oil control valve operates latches in switching rocker arm assemblies. 1. A cylinder head assembly compatible with an engine having four adjacent cylinders , with a left end cylinder on a far left side of the engine , a right end cylinder on a far right side of the engine , and two middle cylinders , a left middle cylinder and a right middle cylinder , the cylinder head assembly comprising:at least one overhead camshaft passing over the four adjacent cylinders;an end support on the far left side of the engine supporting a first end of the at least one overhead camshaft;an end support on the far right of the engine supporting a second end of the at least one overhead camshaft; anda cam tower of at least one middle cylinder for supporting the at least one overhead camshaft,wherein a portion of the at least one overhead camshaft extending over the left end cylinder end cylinder is solely supported by the end support on the far left side of the engine and the cam tower of the at least one middle cylinder, and a portion of the at least one overhead camshaft extending over the right end cylinder is solely support by the end support on the far right ...

CONTINUOUS VARIABLE VALVE DURATION APPARATUS AND ENGINE PROVIDED WITH THE SAME

A continuous variable valve duration apparatus includes a camshaft, a plurality of wheels mounted to the camshaft, of which a wheel key is formed thereto respectively, a plurality of cam portions of which a cam and a cam key are formed thereto respectively, of which the camshaft is inserted thereto, of which relative phase angle with respect to the camshaft is variable, a plurality of inner brackets connected with the each wheel key and the each cam key, a slider housing of which the each inner bracket is rotatably inserted thereto, and rotatably configured around a hinge bracket connected to a cylinder head and a control portion selectively moving the slider housings to change relative position of a rotation center of the inner brackets. 1. A continuous variable valve duration apparatus comprising:a camshaft;a plurality of wheels mounted to the camshaft, of which a wheel key is formed thereto respectively;a plurality of cam portions of which a cam and a cam key are formed thereto respectively, of which the camshaft is inserted thereto, of which relative phase angle with respect to the camshaft is variable;a plurality of inner brackets connected with each wheel key and each cam key;a plurality of slider housings of which each inner bracket is rotatably inserted thereto, and rotatably configured around a hinge bracket connected to a cylinder head; anda control portion selectively moving the slider housings to change relative position of a rotation center of the inner brackets.2. The continuous variable valve duration apparatus of claim 1 , further comprising:first pins of which a wheel key slot, the each wheel key is slidably inserted thereto, is formed thereto respectively; andsecond pins of which a cam key slot, the each cam key is slidably inserted thereto, is formed thereto respectively, andwherein a first sliding pin hole and a second sliding pin hole, of which the first pins and the second pins are inserted thereto respectively, are formed to the inner bracket. ...

COMPOSITE CAM CARRIER

A cam carrier assembly includes a cylinder head having valves and a camshaft having lobes. A cam carrier has a first side coupled with the cylinder head engaging around the valves and a second side with bearing surfaces supporting the camshaft. A series of apertures extend between the first and second sides for the lobes to interface with the valves. The cam carrier is made of carbon fiber composite insulating the camshaft from the cylinder head and providing substantial weight reduction to an upper section of an associated engine. 1. A cam carrier assembly , comprising:a camshaft having lobes;a cam carrier made entirely of carbon fiber composite and having a lower side for engaging a cylinder head, an upper side with semi-circular bearing surfaces supporting the camshaft, and a linear series of apertures extending between the upper and lower sides in alignment with the camshaft for the lobes to interface with valves on the cylinder head.2. The cam carrier assembly of claim 1 , wherein the carbon fiber composite is configured to provide insulation between the cylinder head and the camshaft.3. The cam carrier assembly of claim 1 , wherein the carbon fiber composite includes a polymer resin and a chopped fiber configured for injection molding the cam carrier.4. The cam carrier assembly of claim 1 , further comprising:a plurality of cam caps coupled with the upper side of the cam carrier, each on opposing sides of the camshaft and having an upper semi-circular bearing surface for directly engaging the camshaft.5. The cam carrier assembly of claim 4 , wherein the plurality of cam caps are separately formed from the cam carrier and each of the plurality of cam caps are fastened to the upper side of the cam carrier with fasteners engaging the cam carrier on opposing sides of the camshaft.6. The cam carrier assembly of claim 4 , wherein the upper semi-circular bearing surfaces of the plurality of cam caps together with the semi-circular bearing surfaces on the upper side ...

ENGINE DEVICE

An engine device including, in a cylinder block () thereof, a cylinder bore (), a cam chamber () accommodating a camshaft (), a push-rod chamber () accommodating a push-rod (), and a tappet holder () configured to hold a tappet () in a slidable manner, the tappet () being configured to transmit the drive force from the camshaft () to the push-rod (). The tappet holder () partitions the cam chamber () and the push-rod chamber (). A bypass passage () communicating the cam chamber () with the push-rod chamber () is formed between the tappet holder () and the cylinder bore (). 1. An engine device comprising , in a cylinder block thereof , a cylinder bore , a cam chamber accommodating a camshaft , a push-rod chamber accommodating a push-rod , and a tappet holder configured to hold a tappet in a slidable manner , the tappet being configured to transmit a drive force from the camshaft to the push-rod , wherein:the tappet holder partitions the cam chamber and the push-rod chamber; anda bypass passage communicating the cam chamber with the push-rod chamber is formed between the tappet holder and the cylinder bore;the bypass passage is in communication with the push-rod chamber at a position close to one of inner walls of the push-rod chamber, relative to an axial direction along a rotational axis of the camshaft, the inner walls intersecting the axial direction; andanother one of the inner walls of the push-rod chamber is recessed towards outside of an outline of a communication hole in the push-rod chamber, the communication hole being provided in a joint surface of the cylinder block with a cylinder head.2. The engine device according to claim 1 , wherein:at least a part of a cylinder bore side inner wall of the cam chamber, in a lower portion of the bypass passage, is recessed closer to the cylinder bore than the bypass passage; andthe camshaft is configured so that an outer circumferential surface of the camshaft rotates in a direction from a tappet holder side to a ...

VARIABLE VALVE TIMING MECHANISM AND ENGINE WITH VARIABLE VALVE TIMING MECHANISM

A variable valve timing system includes an exhaust swing arm swung in accordance with rotation of a camshaft, an intake swing arm similarly swung in accordance with the rotation of the camshaft, and a swing shaft swingably supporting the exhaust swing arm and the intake swing arm. In an engine including a plurality of the variable valve timing systems, the adjacent swing shafts are coupled to each other. The engine includes a link mechanism connected to one of the swing shafts, and an actuator for moving the link mechanism. The actuator controls turning angles of all the swing shafts via the link mechanism. 1. A variable valve timing system comprising:an exhaust swing arm swung in accordance with rotation of a camshaft;an intake swing arm similarly swung in accordance with the rotation of the camshaft; anda swing shaft swingably supporting the exhaust swing arm and the intake swing arm, whereinthe swing shaft has an eccentric shaft portion which supports the intake swing arm and which is provided in a main shaft portion supporting the exhaust swing arm, and the main shaft portion is turnably supported by a first shaft supporter adjacent to the eccentric shaft portion and a second shaft supporter disposed away from the first shaft supporter across the intake swing arm and the exhaust swing arm.2. The variable valve timing system according to claim 1 , whereinthe main shaft portion and the eccentric shaft portion are integrated.3. An engine comprising:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'a plurality of the variable valve timing systems according to , wherein'}the adjacent swing shafts are coupled to each other.4. The engine according to claim 3 , whereinthe adjacent swing shafts are coupled via a universal joint.5. The engine according to claim 3 , further comprising:a link mechanism connected to one of the swing shafts; andan actuator for moving the link mechanism, whereinthe actuator controls turning angles of all the swing shafts via the link ...

VALVE OPERATING SYSTEM FOR MULTICYLINDER ENGINE

A valve operating system for a multicylinder engine opens and closes a pair of valves provided on each of cylinders by means of a pair of rocker arms operated by a cam provided on a camshaft supported on a cam holder. When viewed in a direction of a cylinder axis, the pair of rocker aims of at least one of the cylinders are inclined in opposite directions to each other with respect to a direction orthogonal to a camshaft axis. Therefore, thrust loads acting on the camshaft from the pair of rocker al is are counteracted individually for each of the cylinders, thereby enabling the thrust load to be reduced and axial movement of the camshaft to be prevented. 1. A valve operating system for a multicylinder engine , that opens and closes a pair of valves provided on each of cylinders by means of a pair of rocker arms operated by a cam provided on a camshaft supported on a cam holder ,wherein when viewed in a direction of a cylinder axis, the pair of rocker arms of at least one of the cylinders are inclined in opposite directions to each other with respect to a direction orthogonal to a camshaft axis.2. A valve operating system for a multicylinder engine , that opens and closes a pair of valves provided on each of cylinders by means of a pair of rocker arms operated by a cam provided on a camshaft supported on a cam holder ,wherein when viewed in a direction of a cylinder axis, the pair of rocker arms of at least one of the cylinders are inclined in a same direction as each other with respect to a direction orthogonal to a camshaft axis.3. A valve operating system for a multicylinder engine , that opens and closes a pair of valves provided on each of cylinders by means of a pair of rocker arms operated by a cam provided on a camshaft supported on a cam holder ,wherein when viewed in a direction of a cylinder axis, the pair of rocker arms are inclined in a same direction as each other with respect to a direction orthogonal to a camshaft axis, and directions of inclination ...

Valve lift assembly for a cam-in-block engine

An engine includes a block containing multiple valves, and a camshaft defining multiple cams for rotation about a camshaft axis. A valve lift assembly is operatively associated with a respective one of the cams and a respective one of the valves to transfer motion from the cam to the valve by reciprocal motion of the valve lift assembly along a lift axis. The assembly includes a follower and a follower control mechanism. The follower is disposed in contact with the cam at a contact point that defines a contact path extending along a surface of the cam as the cam rotates about the camshaft axis. The follower is moveable through an adjustment range to change the position of the contact point along the contact path at a given angular position of the cam. The follower control mechanism is operable to control the movement of the follower within the adjustment range.

METHOD FOR JOINING A FUNCTIONAL MODULE, AND FUNCTIONAL MODULE

A method of joining a functional module comprises the steps of providing a frame structure that defines a bearing channel with at least one circumferentially closed bearing seat; providing at least two attachment parts; providing a hollow shaft that comprises at least one support section for the at least two attachment parts, wherein the attachment parts comprise a mounting seat that is adapted to a support section; feeding the attachment parts in the bearing channel in a first feeding direction; feeding the hollow shaft in the bearing channel in a second feeding direction, wherein the hollow shaft is inserted into the respective mounting seat of the at least two attachment parts; and, subsequent to the feeding of the attachment parts and the hollow shaft in the bearing channel, at least sectionally widening the hollow shaft for a torsionally rigid fixation of the at least two attachment parts with their mounting seats at the respective support section of the hollow shaft. 1. A method of manufacturing a camshaft module comprising a housing that defines a bearing channel , and an assembled composite shaft that comprises a hollow shaft and cams that are fixed thereto in a torque-proof manner , wherein the composite shaft is mounted to the housing , wherein the method comprises the following steps:providing a housing that defines a bearing channel having at least one circumferentially closed bearing seat,providing a plurality of cams,providing a hollow shaft that comprises a plurality of support sections for the cams, wherein the cams each comprise a mounting seat that is adapted to a respective support section,feeding the cams in the bearing channel in a first feeding direction,feeding the hollow shaft in the bearing channel in a second feeding direction that is different from the first feeding direction, wherein the hollow shaft is inserted in the mounting seats of the cams, andsubsequent to the feeding of the attachment parts and the hollow shaft into the bearing ...

HYDRAULIC CIRCUIT FOR VALVE DEACTIVATION

Methods and systems are provided for deactivating a valve actuation mechanism. In one example, a system may include a hydraulic gallery that may deliver a restricted flow of hydraulic fluid from a hydraulic flow restrictor to a pressure relief valve within a valve deactivation oil control valve, and during a second condition may deliver an unrestricted flow of hydraulic fluid from the valve deactivation oil control valve to the hydraulic flow restrictor. The hydraulic flow restrictor may comprise two vertical bores within the camshaft carrier that are fluidically coupled via a restrictive groove on the bottom surface of the camshaft carrier. 116-. (canceled)17. A method for a cylinder deactivation hydraulic circuit , comprising: 'flowing oil at a first pressure from a hydraulic flow restriction to a SRFF switching chamber via an oil gallery; and', 'during a first condition,'} 'flowing oil at a second pressure from a poppet valve deactivation control valve to the SRFF switching chamber via the oil gallery;', 'during a second condition,'}wherein said hydraulic flow restriction comprises a lateral groove coupling a first oil filter bore and a second oil filter bore, said second oil filter bore directly coupled to the oil gallery.18. The method of claim 17 , wherein flowing oil at the first pressure includes flowing oil from the hydraulic flow restriction to a pressure relief valve within the poppet valve deactivation control valve claim 17 , and wherein flowing oil at the second pressure includes flowing oil from the poppet valve deactivation control valve to the hydraulic flow restriction.19. The method of claim 18 , wherein the first condition is an activated cylinder condition claim 18 , and wherein the second condition is a deactivated cylinder condition.20. The method of claim 19 , wherein the first pressure is less than the second pressure. The present description relates generally to valve actuating mechanisms for engines.Variable displacement engines may employ ...

Rocker Motion-Powered Generators For Rocker-Mounted Electronic Devices

An internal combustion engine has a valvetrain that includes a rocker arm assembly on which is mounted an electronic device and at least a part of a generator. The generator converts some of the mechanical energy that is transmitted through the rocker arm assemblies into electricity. That electricity may be used to power an electric latch, a transmitter, or another type of rocker arm assembly-mounted electrical device. Various generator configurations are described. In some configurations, the generator is piezoelectric. In other configurations, the generator is electromagnetic. In some configurations, the generator is driven by force transmitted by the rocker arm assembly from a cam. In some configurations, the generator is driven by vibrations. 1. A valvetrain , comprising:a cam shaft on which is mounted an eccentrically shaped cam;a poppet valve;a rocker arm assembly configured to engage the cam as the cam shaft rotates and operative to actuate the valve;a generator operative to convert mechanical energy into electric energy; andan electrical device, which is distinct from the generator, mounted on the rocker arm assembly;wherein a portion of the generator comprising a pole is mounted on the rocker arm assembly;the generator is configured to power the electrical device, the configuration including an electrical connection between the electrical device and the pole; and the generator is driven by the cam.2. (canceled)3. A valvetrain according to claim 1 , wherein:the generator is an electromagnetic generator comprising a coil and a magnet configured to move relative to one another in a first direction as the cam is rising off base circle and in the opposite direction as the cam is descending toward base circle; andthe coil is mounted to the rocker arm assembly.4. A valvetrain according to claim 1 , wherein:the rocker arm assembly comprises a cam roller configured to follow the cam;the generator is an electromagnetic generator comprising a coil and a magnet ...

HYDRAULIC CIRCUIT FOR VALVE DEACTIVATION

Methods and systems are provided for deactivating a valve actuation mechanism. In one example, a system may include a hydraulic gallery that may deliver a restricted flow of hydraulic fluid from a hydraulic flow restrictor to a pressure relief valve within a valve deactivation oil control valve, and during a second condition may deliver an unrestricted flow of hydraulic fluid from the valve deactivation oil control valve to the hydraulic flow restrictor. The hydraulic flow restrictor may comprise two vertical bores within the camshaft carrier that are fluidically coupled via a restrictive groove on the bottom surface of the camshaft carrier. 1. A hydraulic circuit for a poppet valve deactivation mechanism of an engine , comprising:a poppet valve deactivation control valve including an outlet that is in communication with first and second oil galleries, the galleries also each in communication with a DHLA; anda hydraulic flow restriction hydraulically in series between the first and second galleries, said hydraulic flow restriction including a restricted horizontal groove in a camshaft carrier that fluidly couples a first vertical bore to a second vertical bore.2. The hydraulic circuit of claim 1 , wherein the first vertical bore houses a first oil filter and the second vertical bore houses a second oil filter.3. The hydraulic circuit of claim 2 , wherein the first oil gallery is in communication with a first port of a DHLA claim 2 , and the second oil gallery is in fluidic communication with a second port of the DHLA.4. The hydraulic circuit of claim 3 , wherein the second oil gallery fluidically couples the second port to each of a poppet valve deactivation control valve and the hydraulic flow restriction claim 3 , wherein the second port is hydraulically in series between the poppet valve deactivation control valve and the hydraulic flow restriction.5. The hydraulic circuit of claim 4 , wherein the poppet valve deactivation control valve includes:a pressure relief ...

Compression-release engine brake system for lost motion rocker arm assembly and method of operation thereof

A compression-release brake system is provided that includes a lost motion exhaust rocker assembly, an actuation piston, and a reset device. The actuation piston includes an actuation piston body that is slidably received by the rocker arm to define a piston cavity in the rocker arm and is movable between piston retracted and extended positions. The actuation piston is configured to be operatively associated with the exhaust valve to permit unseating of the exhaust valve from the seated state. An actuation piston check valve is configured to move between closed and open positions to permit hydraulic fluid flow through an actuation piston communication port to the piston cavity. The reset device includes a reset check valve and a reset pressure control spring for applying a biasing force to the reset check valve to urge the reset check valve toward an open position.

OIL CONTROL VALVE TO CONTROL A CAM PHASER WITH A SPOOL POSITIONED BY EXTERNAL ACTUATOR

An oil control valve for a cam phaser of an internal combustion engine where the spool is positioned by an external actuator. The pressure enters the end of the oil control valve where the resultant pressure force is balanced by the differential area of the spool. The spool contains two plate check valves enabling cam torque recirculation of oil from A to B or B to A depending upon the spool position. In mid position, the spool lands block A and B to hold the cam phaser position. Three or five positions may be utilized. 1. A hydraulic valve for a cam phaser comprising:a spool assembly including a spool that is axially movable in a central opening; anda first check valve and a second check valve which prevent an unintentional outflow of a hydraulic fluid flowing through the spool assembly from an inner cavity of the spool assembly in a first flow through an opening and a second flow though the opening of the spool assembly associated respectively with a first operating connection and a second operating connection;wherein the spool assembly has a first position, a second position, and a third position,wherein the hydraulic fluid flows from the first operating connection to the second operating connection when the spool assembly is in the first position,wherein the hydraulic fluid does not flow between the first operating connection and the second operating connection when the spool assembly is in the second position,wherein the hydraulic fluid flows from the second operating connection to the first operating connection when the spool assembly is in the third position,wherein the first operating connection and the second operating connection are opened and closed according to a position of the spool.2. The hydraulic valve according to claim 1 , further comprising a supply connection is arranged at an end of the hydraulic valve.3. The hydraulic valve according to claim 1 , wherein the spool assembly includes a machined spool.4. The hydraulic valve according to claim 1 , ...

Valvetrain assembly

A valvetrain for translating force and oil between a valve and intermediate member of an engine, including a rocker, a shaft, and a recess. The rocker has an inner surface, a pad for engaging the valve, a socket for engaging the intermediate member, a socket port defined in the surface, and a socket channel extending from the socket port to the socket. The shaft has a bearing surface for supporting the rocker, a channel spaced from the bearing surface, a feed port in the bearing surface, and a feed channel extending from the feed port to the channel. The rocker rotates between: closed, with the socket port and feed port aligned; and open, with the socket port spaced from the feed port. A recess is disposed in the bearing surface adjacent to the feed port and extends to a base aligned with the socket port when the rocker is open.

태핏

본 발명은 하우징(2)을 구비한, 고압 연료 펌프용 태핏(1)에 관한 것으로, 캠 활주에 이용되는 하우징의 구동측(7)은 롤러(8)를 내포하고, 태핏 종동부의 접촉면으로 사용되는 하우징의 피동측(3)은 하우징(2)의 내부 케이싱(5)을 관통하여 돌출하는 브리지 부재(6)의 하부면(4)에 지지되며, 하우징(2)의 윈도우(9) 내에는 브리지 부재(6)의 반경방향 연장부로써 형성되며 하우징의 외부 케이싱(10) 위로 돌출하는 비틀림 방지 수단(11)이 연장되며, 태핏(1)의 내부 케이싱(5)에서 윈도우(7)의 직경 반대편에 놓인 섹션에만 천공/엠보싱 공정을 통해 제조되는, 일체로 결합된 돌출부가 연장되며, 이 돌출부는 구동측을 향해 쐐기 형상으로 뻗으며, 이때 강판으로 형성된 브리지 부재(6)는 자신의 반경방향 연장부(12)의 직경 반대편 섹션(13)을 이용하여 상기 돌출부(15)에 스냅-온되고, 자신의 하부면(4)의 에지 영역(14)을 이용하여 상기 돌출부 상에 지지된다.

Engine with cam external lubrication

FIELD: engines and pumps.SUBSTANCE: invention can be used in the internal combustion engines. Engine with disengaged cylinders comprises cylinder block and head to define first and second cylinders, upper intake camshaft (104), upper outlet camshaft (102), bearing plate and holder cover. Second cylinder has the possibility of selective disconnection during engine operation. Upper intake camshaft (104) comprises a pair of intake cams (130), (136) coupled to intake valves of the second cylinder. Upper exhaust distributing shaft (104) comprises a pair of outlet cams (108), (114) connected to exhaust valves of the second cylinder. Camshaft bearing plate and camshaft holder cover together support main bearings of inlet and outlet camshafts (102) and (104). Cover of the holder forms channel (160), containing input (162), which is connected in fluid communication with lubrication passage, connected to one of bearings. Channel (160) comprises a pair of outlets (166) located at a distance from external surfaces of a pair of outlet cams (108), (114) for their external lubrication. Embodiment of engine with disengaged cylinders and holder of camshafts are disclosed.EFFECT: technical result consists in simplification of process of external lubrication of cams.20 cl, 4 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 692 193 C2 (51) МПК F01L 1/053 (2006.01) F01M 9/10 (2006.01) F02D 17/02 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК F01L 1/053 (2019.02); F01L 1/18 (2019.02); F01L 1/46 (2019.02); F01L 13/0005 (2019.02); F01M 9/10 (2019.02); F01M 9/101 (2019.02); F01M 9/102 (2019.02); F01M 9/105 (2019.02) (21)(22) Заявка: 2015145722, 26.10.2015 26.10.2015 Дата регистрации: 21.06.2019 29.10.2014 US 14/526,946 (43) Дата публикации заявки: 02.05.2017 Бюл. № 13 7455040 B2, 25.11.2008. US 2009/0107428 A1, 30.04.2009. US 8464678 B1, 18.06.2013. RU 2382212 C2, 20.02.2010. RU 2393360 C2, 27.06.2010. (45) Опубликовано: 21.06.2019 ...

Operating internal combustion engines

본 발명은 내연 기관을 작동하기 위한 제어 시스템(1)에 관한 것이다. 최대 엔진 부하의 40% 내지 75%의 범위 내에 있는 부분 부하 상한까지의 엔진 부하에 대한 감속 운항에 최적화된 부분 부하 모드가 제공된다. 또한, 상기 부분 부하 상한 이상의 엔진 부하를 위한 고부하 모드가 제공된다. 부분 부하 모드에서, 적어도 하나의 흡입 밸브(4)는 상기 고부하 모드에서보다 더 늦은 폐쇄 각도에서 폐쇄된다. The present invention relates to a control system 1 for operating an internal combustion engine. A partial load mode is provided that is optimized for reduced speed operation for engine loads up to the upper partial load limit in the range of 40% to 75% of the maximum engine load. In addition, a high load mode is provided for engine loads above the partial load upper limit. In the partial load mode, at least one intake valve 4 is closed at a later closing angle than in the high load mode.

Cam shaft/cam gear assembly and thrust strategy for engine using same

An engine includes a camshaft supported in a housing for rotation about an axis of rotation. A cam gear is attached to one end of the camshaft and includes a first thrust bearing surface. A thrust ring is attached to the cam gear and includes a second thrust bearing surface. A thrust ring retainer is attached to the housing with a plurality of bolts and includes a pair of thrust surfaces trapped between the first thrust bearing surface of the cam gear and a second thrust bearing surface of the thrust ring. The thrust ring retainer also defines a portion of a lubrication connection passage that facilitates pressure equalization among a plurality of lubrication galleries arranged in parallel adjacent the camshaft.

Internal combustion piston engine for aviation

一种用于与螺旋桨驱动式飞行器一起使用的内燃发动机，包括凸轮轴，适于用作使螺旋桨旋转以提供推进推力的输出轴。齿轮组被配置成将旋转动力从曲柄轴传递到凸轮轴并且使凸轮轴以与曲柄轴的旋转速度成比例的速度旋转。齿轮组被设置在发动机壳体的后壁的后方，并配置成使凸轮轴在与曲柄轴旋转相反的方向上旋转。凸轮轴的长度使发动机扭转振动减少。在一个实施例中，发动机是具有对置式配置的六缸压缩点火式发动机，并且可以产生在从约300马力到约350马力范围内的峰值输出动力。

Mechanical timing cylinder deactivation system

一种用于机械定时气缸停用的系统和方法包括在凸轮轴中的内通路，所述内通路供应流体以停用与内燃发动机的所述气缸相关联的一个或多个气门打开机构。

Operating internal combustion engines

本发明涉及一种用于操作内燃机的方法和装置。提供部分负载模式，该部分负载模式针对高达部分负载上限的发动机负载的低速航行被优化，该部分负载上限在最大发动机负载的40％至75％的范围内。另外，针对在部分负载上限以上的发动机负载提供高负载模式。在部分负载模式下，至少一个进气门(4)在比高负载模式下延后的关闭角被关闭。

Engine and air compressor

1466311 IC engine alternatively operable as air compressor T UENO 31 Jan 1974 [1 Feb 1973] 04479/74 Headings F1B, F1F and F1N A combination internal combustion engine and air compressor having two or more compression chambers each able to function in a first operating mode as a combustion chamber and in a second operating mode as an air compressing chamber, for compressing air without admixture of fuel when the combination is driven by running inertia of the combination, and means comprising an axially displaceable cam-shaft to change a valve timing of the combination for changing between the first and second modes of operation, the two or more compression chambers as a whole being operable both or all as combustion chambers, both or all as air compression chambers and alternatively one or more as combustion chambers and the other or others as air compressing chambers. Fig. 1 shows an engine having a divided cam-shaft, part 12G of which operates the valves of fdur cylinders while part 12H operates the valves of the other two cylinders. The parts 12G and 12H are axially slidable independently and are independently driven. Sliding is effected by a manually operated fork, Fig. 14 or a fluid operated fork, Fig. 15. Fig. 4 shows a cam having a single lobe 19J, 20J at one end and a double-lobe 19K, 20K at the other end. The single lobe operates an inlet or exhaust valve once during each two crank-shaft revolutions to provide a four-stroke engine cycle and the twolobe portion operates the valves once for each revolution of the crank-shaft to provide compressor action. Fig. 7 shows a cam which also has a central collar 22 which holds the valve partly open to provide a no-load condition. Instead of being waisted the central portion of the each cam may be as large as the greatest radius of the lobes, Fig. 22 (not shown). Fig. 23 shows an arrangement of pipes and valves which are operated so that when all six cylinders are used for air compression, the cylinders 2A, 2B, 2C and ...

Tappet

The invention proposes a tappet (1), for a high-pressure fuel pump, having a housing (2), the drive input side (7), which serves as a cam run-on face, of which housing (2) incorporates a roller (8), wherein the drive output side (3), which serves as a contact surface for a tappet follower part, of said housing (2) bears against an underside (4) of a bridge piece (6) which projects through an inner casing (5) of the housing (2), wherein a rotation prevention means (11) which projects beyond the outer casing (10) of the housing (2) runs in a window (9) of said housing (2), which rotation prevention means (11) is formed by a radial elongation of the bridge piece (6), wherein a projection runs on the inner casing (5) of the tappet (1) only on a portion situated diametrically opposite the window (7), which projection is integrally connected and is produced by means of a punching and embossing process and rises in a wedge shape in the direction of the drive input side, and wherein that portion (13) of the sheet-steel bridge piece (6) which is situated diametrically opposite the radial elongation (12) is snapped over the projection (15), and said portion (13) rests with an edge region (14) of the underside (4) thereof on said projection (15).

Variable valve timing system for engines

Installation and lubrication structure of diesel engine camshaft

本发明涉及一种柴油发动机凸轮轴的安装与润滑结构，其主要包括机体、曲轴箱盖、凸轮轴、气缸体、凸轮轴齿轮、气缸盖罩、气缸盖，凸轮轴通过两端的支撑轴颈直接支撑在发动机机体和曲轴箱盖相对应的凸轮轴支撑孔内，所述气缸盖罩的润滑油加油口与气缸盖的润滑油进油通道相连通；气缸盖的润滑油进油通道与机体的润滑油进油通道之间通过推杆套管相连通。凸轮轴两端的支撑轴颈润滑通过支撑孔内开设的油槽与油道引入曲轴箱润滑油进行润滑。本发明既能满足凸轮轴的安装及润滑要求，又简化了零部件的安装，降低了成本，结构简单，布置合理。

Improvement in the distribution control of internal combustion engines

Diesel engine

Internal combustion engine having valve lifters with misalignment limiting end caps

An internal combustion engine includes an engine housing defining a cylinder, and a first and a second gas exchange valve for the cylinder, positioned within the engine housing. The engine further includes a valve actuating mechanism having a first and a second valve lifter reciprocating within adjacent lifter bores to actuate the first and second gas exchange valves. Each of the first and second valve lifters includes an end cap having a misalignment limiting projection, limiting rotation of the valve lifter in response to dynamic perturbation.

Vehicle and propulsion system including an internal combustion engine

An internal combustion engine for a vehicle, such as a motorcycle, includes a crankcase, two banks of cylinders projecting from the crankcase in a 56-57 degree V-configuration, a plurality of pushrods, and a plurality of camshafts supported by the crankcase. The two banks of cylinders include a first cylinder bank that projects from the crankcase to a first cylinder head, and a second cylinder bank that projects from the crankcase to a second cylinder head. The plurality of intake and exhaust valve pushrods extend between the crankcase and the first and second cylinder heads, driven by one intake camshaft and two exhaust camshafts.

Vehicle and propulsion system including an internal combustion engine

An internal combustion engine ( 300 ) for a vehicle, such as a motorcycle ( 20 ), includes a crankcase ( 380 ), two banks of cylinders ( 320 a , 320 b ) projecting from the crankcase ( 380 ) in a V-configuration, a plurality of pushrods ( 364 ), and a plurality of camshafts ( 360 a , 360 b , 360 c ) supported by the crankcase ( 380 ). The two banks of cylinders ( 320 a , 320 b ) include a first cylinder bank that projects from the crankcase ( 380 ) to a first cylinder head ( 340 a ), and a second cylinder bank that projects from the crankcase ( 380 ) to a second cylinder head ( 340 b ). The plurality of pushrods ( 364 ) extend between the crankcase ( 380 ) and the first and second cylinder heads ( 340 a , 340 b ), and the plurality of camshafts include only the first, second and third camshafts ( 360 a , 360 b , 360 c ).

VVT gear and the engine with VVT gear

本发明提供一种可变气门正时机构，由以下构件构成：排气用摆臂(53)，根据凸轮轴(15)的旋转而摆动；进气用摆臂(53)，同样根据所述凸轮轴(15)的旋转而摆动；以及摆动轴(51)，以自由摆动的方式支承所述排气用摆臂(52)以及所述进气用摆臂(53)，在具备多个所述可变气门正时机构(5)的发动机(100)中，通过具备将邻接的所述摆动轴(51)相互联结并且与一个所述摆动轴(51)连接的连杆机构(6)、以及用于带动所述连杆机构(6)的往复运动气缸(7)，所述往复运动气缸(7)能经由所述连杆机构(6)控制所有的所述摆动轴(51)的转动角度。

Continuous varible vavle duration apparatus and engine provided with the same

본 발명은 밸브의 개폐 듀레이션을 가변할 수 있는 연속 가변 밸브 듀레이션 장치에 관한 것이다. 본 발명에 의한 연속 가변 밸브 듀레이션 장치는 캠 축; 상기 캠 축에 장착되며, 휠 키가 형성되며, 각 실린더에 대응하여 구비되는 복수 개의 휠; 캠과 캠 키가 형성되고, 상기 캠 축이 삽입되며, 상기 캠 축에 대한 상기 캠의 상대적인 위상이 가변 될 수 있고, 상기 각 실린더에 대응하여 구비되는 복수 개의 캠 부; 상기 각 휠 키 및 상기 각 캠 키와 연결되는 복수 개의 이너 브라켓; 상기 각각의 이너 브라켓이 회전 가능하게 삽입되며, 실린더 헤드에 결합된 힌지 브라겟을 중심으로 회전 가능하게 구비되는 슬라이더 하우징; 및 상기 각 슬라이더 하우징의 위치를 이동시켜, 상기 각 이너 브라켓의 회전 중심 위치를 조절하는 제어부;를 포함한다.

Internal combustion engine with lubrication system

An internal combustion engine for a vehicle, such as a motorcycle, includes a crankcase defining a sump, and a lubrication system scavenging oil from the crankcase and supplying oil to the crankshaft and to first and second cylinder heads. The lubrication system includes a pump with housing and rotor, the housing being fixed to the crankcase and the rotor being rotatable around a crankshaft axis and being rotated by the crankshaft. A plurality of oil supply passages extend through the crankcase, potentially including at least one being formed in the crankcase.

Roller bearing

Variable valve timing arrangement

A variable valve timing arrangement for an engine system is disclosed. The variable valve timing arrangement includes a cam follower configured to follow a cam lobe. A pushrod is operably connected with the cam follower and a pushrod rotation mechanism is configured to selectively rotate the pushrod. Further, a cam follower adjustment mechanism is configured to reposition the cam follower based on the rotation of the pushrod.

Powdered metal camshaft assembly

A camshaft assembly comprising a shaft (14), a lobe (16), a gear (18), and a boss portion (20) is disclosed. The lobe (16) includes a first powdered metal and has a first density, while the gear (18) includes a second powdered metal and has a second density. The boss portion (20) is formed on one of the lobe or gear, and has an aperture sized to cooperate with the shaft (14) and a periphery cooperating with the other of the lobe or gear to fix the lobe against rotation relative to the gear. The boss portion (20) has a third density less than the density of the lobe or gear on which the boss portion is formed. A method of making a camshaft component is also disclosed.

Balanced bridge bleeder brake with hla

A valvetrain assembly configured to selectively perform a bleeder brake operation includes a rocker arm configured to rotate about a rocker shaft, a camshaft having a lobe configured to impart motion to the rocker arm through a pushrod, and a valve bridge assembly operably associated with the rocker arm and configured to be selectively engaged by the rocker arm to open at least one of a first and second engine valve. An engine brake capsule is operably associated with the valve bridge assembly and configured to operate in a drive mode where the engine brake capsule does not cause the valve bridge assembly to open the first or second engine valves, and a brake mode where the engine brake capsule engages the valve bridge assembly to partially open the first engine valve to perform the bleeder brake operation.

Link type variable stroke engine

In a link type variable stroke engine in which a piston, a crankshaft and an eccentric shaft are linked by a linking mechanism, a counterweight part which is provided so that in a projection view on a plane orthogonal to an axis of a rotary shaft, a center of gravity of the counterweight part is located on an opposite side of the axis of the rotary shaft from an axis of the eccentric shaft rotates together with the rotary shaft. Accordingly, it is possible to effectively suppress and lessen half-order inertial exciting force occurring at the eccentric shaft.

Variable valve actuator having low-pressure relief

A valve actuation system is disclosed for an engine. The valve actuation system may have a variable valve actuator that is configured to engage a rocker arm and hold the valve at an open position regardless of motion of a cam lobe. The variable valve actuator may have a housing forming a chamber, a plunger disposed in the chamber, a control valve movable to control a flow of fluid into the chamber, and a relief valve configured to automatically open and release fluid from the housing when a pressure inside the chamber is below a predetermined pressure. The valve actuation system may further have a controller configured to cycle the control valve prior to start-up of the engine and to selectively move the control valve after start-up.

Apparatus and method for valve deactivation hydraulic cycle

本发明提供一种用于停用气门驱动机构的方法和系统。在一个示例中，系统可以包括液压油道，该液压油道可以从液压流动限制器输送限制流动的液压流体至气门停用油控制阀内的泄压阀并且在第二状况期间可以从气门停用油控制阀输送非限制流动的液压流体至液压流动限制器。液压流动限制器可以包含凸轮轴支架内经由凸轮轴支架的底面上的限制槽流体地连接的两个竖直孔。

Vertical sliding valve arm

Systems and methods related to eliminating the common pivot-type rocker arm and reversing the use of the valve spring in internal combustion engines. More specifically, the camshaft lobes activate a sliding valve arm to close the engine valve instead of opening it and the valve spring is used to push open the valve instead of closing it.

Structure for mounting and lubrication of a diesel engine camshaft

A structure for the mounting and lubrication of a diesel engine camshaft comprises an engine body (1), a crankcase cover (2), a camshaft (3), a cylinder body (4), a camshaft gear (5), a cylinder head cover (6) and a cylinder head (7).The bearing journals (3a, 3b) at either end of the camshaft are directly supported in camshaft bearing holes (1a, 2a) in the engine body and crankcase cover; a lubricant filler hole (6a) on the cylinder head cover communicates with a cylinder head lubricant inlet passage (7a); the cylinder head lubricant inlet passage (7a) communicates with an engine body lubricant inlet passage (1d) by means of a pushrod guide (8). The bearing journals (3a, 3b) at either end of the camshaft are lubricated by means of lubricant grooves (1b, 2b) and lubricant ducts (1c, 2c) provided in the camshaft bearing holes for feeding lubricant from the crankcase. The structure simplifies the mounting of parts and reduces costs.

Variable valve timing mechanism and engine with variable valve timing mechanism

캠 샤프트(15)의 회전에 따라 요동하는 배기용 스윙 아암(53)과, 마찬가지로 상기 캠 샤프트(15)의 회전에 따라 요동하는 흡기용 스윙 아암(53)과, 상기 배기용 스윙 아암(52) 및 상기 흡기용 스윙 아암(53)을 요동 가능하게 지지하는 스윙 샤프트(51)로 가변 밸브 타이밍 기구(5)를 구성하고, 복수의 상기 가변 밸브 타이밍 기구(5)를 구비한 엔진(100)에 있어서, 인접하는 상기 스윙 샤프트(51)를 서로 연결함과 함께, 하나의 상기 스윙 샤프트(51)에 접속되는 링크 기구(6)와, 상기 링크 기구(6)를 움직이기 위한 액추에이터(7)를 구비함으로써, 상기 액추에이터(7)는 상기 링크 기구(6)를 통해 모든 상기 스윙 샤프트(51)의 회동 각도를 제어할 수 있게 했다.

Continuous variable valve duration apparatus and engine provided with the same

A continuous variable valve duration apparatus includes a camshaft, a plurality of wheels mounted to the camshaft, of which a wheel key is formed thereto respectively, a plurality of cam portions of which a cam and a cam key are formed thereto respectively, of which the camshaft is inserted thereto, of which relative phase angle with respect to the camshaft is variable, a plurality of inner brackets connected with the each wheel key and the each cam key, a slider housing of which the each inner bracket is rotatably inserted thereto, and rotatably configured around a hinge bracket connected to a cylinder head and a control portion selectively moving the slider housings to change relative position of a rotation center of the inner brackets.

Horizontal air inlet and outlet distribution device

本发明提出了一种横置式进排气配气装置，属于发动机配气机构领域。解决了现有的进排气阀布置方式难以满足燃烧实验的问题。它包括凸轮轴上安装有进气凸轮和排气凸轮，进气凸轮和排气凸轮分别与进气凸轮从动件和排气凸轮从动件相接触，进气凸轮从动件和排气凸轮从动件的底端均与从动轴转动相连，进气凸轮从动件的上部通过进气推杆与进气摇臂底部相连，进气摇臂中部与进气摇臂轴相连，进气摇臂上部与进气阀相连，排气凸轮从动件的上部通过排气推杆与排气摇臂底部相连，所述进气阀和排气阀为垂直于活塞运行方向横向布置的形式，布置位置位于缸盖下方并高于活塞的上止点。它主要用于发动机的配气。

Cylinder head arrangement for variable valve actuation rocker arm assemblies

A novel cylinder head arrangement for an in-line four cylinder or eight cylinder engine. A modified arrangement allows additional space for installation of wider rocker arm assemblies used for variable valve lift (VVL), cylinder deactivation (CDA) and other types of variable valve actuation (VVA). In one embodiment, cam towers adjacent the end two cylinders are not used. At least one end support is used, which may be an outboard bearing on a camshaft for each end. The wider rocker assemblies may then be installed. In another embodiment, cam towers adjacent the inner two cylinders are eliminated and a single camshaft support piece with a support bearing is installed between the inner cylinders to provide support for the camshafts. The wider rocker assemblies may then be installed on at least one of the middle cylinders. A novel oil control valve operates latches in switching rocker arm assemblies.

INTERNAL COMBUSTION ENGINE

MOTOR DE COMBUSTÃO INTERNA. Um motor de combustão interna para um com uma aeronave acionada por propulsor inclui um eixo de came adaptado para funcionar como um eixo de transmissão que gira um propulsor para prover empuxo propulsivo. Uma série de engrenagens é configurada para transferir potência rotativa do eixo de manivela para o eixo de came e girar o eixo de came em uma velocidade que é proporcional à velocidade rotativa do eixo de manivela. A série de engrenagens é disposta através da parede traseira do alojamento de motor e é configurada para girar o eixo de came em uma direção oposta à rotação do eixo de came. O comprimento do eixo de came reduz vibração de torção do motor. Em uma modalidade, o motor é um motor de ignição por compressão de seis cilindros com uma configuração de motor boxer e pode gerar uma potência de pico de transmissão dentro da faixa de cerca de 300 cavalos a cerca de 350 cavalos. INTERNAL COMBUSTION ENGINE. An internal combustion engine for a propeller-driven aircraft includes a camshaft adapted to function as a driveshaft that rotates a propeller to provide propulsive thrust. A series of gears are configured to transfer rotary power from the crankshaft to the camshaft and rotate the camshaft at a speed that is proportional to the rotational speed of the crankshaft. The series of gears are disposed through the back wall of the motor housing and are configured to rotate the camshaft in a direction opposite to the rotation of the camshaft. Camshaft length reduces engine torsional vibration. In one embodiment, the engine is a six-cylinder compression-ignition engine with a boxer engine configuration and can generate peak drive power within the range of about 300 horsepower to about 350 horsepower.

Variable valve timing system for an engine

An engine for a two-wheeled vehicle includes at least one cylinder comprising a combustion chamber and a cylinder head positioned adjacent the combustion chamber. The engine further includes a crankcase coupled to the at least one cylinder which includes a crankshaft. Additionally, the engine includes a valve train operably coupled to the crankshaft which includes at least one intake valve fluidly coupled to the combustion chamber, at least one exhaust valve fluidly coupled to the combustion chamber, at least one pushrod operably coupled to at least one of the intake valve and the exhaust valve, at least one camshaft operably coupled to the at least one pushrod and the crankshaft, and a cam phaser assembly operably coupled to the at least one camshaft and positioned generally outside an envelope of the cylinder head.

Cylinder head comprising positioning means for a lower half-bearing

L’invention concerne une culasse assemblée (1) de moteur à combustion interne, comprenant - un corps de culasse (3) destiné à être monté sur un carter-cylindre du moteur ;- un couvre-culasse (2) couvrant ledit corps de culasse;- au moins un palier suspendu (5) comprenant un demi-palier supérieur (6) venu de matière avec le couvre-culasse (2), et un demi-palier inférieur (7) qui est une pièce séparée et rapportée au demi-palier supérieur (6); Selon l’invention, le demi-palier supérieur (6) comprend un premier trou de fixation supérieur (61) tandis que le demi-palier inférieur (7) comprend un premier trou taraudé inférieur (71), le premier trou de fixation supérieur (61) et le premier trou taraudé inférieur (71) étant destinés à recevoir une même vis de fixation (81). En outre, le corps de culasse (3) comprend un moyen de positionnement (9) disposé en vis-à-vis du premier trou de fixation supérieur (61) et présentant une partie de guidage apte à entrer dans le premier trou taraudé inférieur (71).Figure pour l’abrégé : figure 2 The invention relates to an assembled cylinder head (1) of an internal combustion engine, comprising - a cylinder head body (3) intended to be mounted on a cylinder block of the engine; - a cylinder head cover (2) covering said cylinder head body ; - at least one suspended bearing (5) comprising an upper half-bearing (6) integral with the cylinder head cover (2), and a lower half-bearing (7) which is a separate part and attached to the half- upper bearing (6); According to the invention, the upper half-bearing (6) comprises a first upper fixing hole (61) while the lower half-bearing (7) comprises a first lower threaded hole (71), the first upper fixing hole ( 61) and the first lower threaded hole (71) being intended to receive the same fixing screw (81). Furthermore, the cylinder head body (3) comprises a positioning means (9) disposed opposite the first upper fixing hole (61) and having a guide part suitable for entering the first lower ...

Reciprocating internal combustion engine

An internal combustion engine (1010) having an adjustable compression ratio is disclosed. The engine includes a housing ( 1013 ), a piston assembly ( 1012 ) adjustably coupled to the housing, and a cylinder( 1014 ) reciprocatingly disposed within the housing. The cylinder reciprocates relative to the piston assembly during operation of the engine. The engine further includes a compression ratio adjustment mechanism ( 1300 ) in communication with the piston assembly. The compression ratio adjustment mechanism is adaptable to adjust the compression ratio of the engine during operation. In another aspect of the present invention, the engine includes an exhaust valve ( 1052 ) in fluid communication with the cylinder and a crankshaft ( 1016 ) coupled to the cylinder, wherein the crankshaft includes a lobe ( 1054 ) for actuating the exhaust valve.

Valve cover housing for internal combustion engines

A valve cover housing for internal combustion engines. In one embodiment, the valve cover housing includes a conduit for passing a coolant fluid near the valvetrain, and in another embodiment, the housing includes an internal protuberance or other structure that promotes the dripping of oil or another lubricant onto a selected region or component of the valvetrain, such as the valve springs.

Lubricating device for engine

本发明提供一种使储油室内的油雾的产生量最优化的发动机的润滑装置。发动机(1)的润滑装置(50)包括：曲轴室(3)，其由于活塞(11)的上下移动而内部的压力变动；储油室(32)，其配置于曲轴室(3)的下方，用于储存润滑用的油；第1分隔壁(33)，其用于将曲轴室(3)和储油室(32)分隔开；第1开口部(35)，其贯通第1分隔壁(33)而将曲轴室(3)和储油室(32)连通；以及油雾产生量调整部(100)，其在曲轴室(3)内为正压时通过使从曲轴室(3)内经由第1开口部(35)喷射到储油室(32)内的气体分散，或通过抑制所述喷射出的气体所碰撞的油的流动，来对储油室(32)内的油雾的产生量进行调整。

Fluid-triggered power system

A fluid-triggered power system comprising: a cylinder body; and a cylinder head, which has an inhalation gate and a discharge gate provided thereon, and a gate control device is mounted on each of the inhalation gate and the discharge gate; a piston is mounted in a cylinder chamber of the cylinder body, one end of which is connected with a crankshaft through a connecting rod; wherein an inhalation connected case and a discharge connected case are respectively mounted on outside of the inhalation gate and the discharge gate, whose top are respectively connected with an inlet of an inhalation buffer tube and an outlet of a discharge buffer tube; the crankshaft is used to drive a generator work to generate power through a transmission mechanism. The advantages of present invention is: the power system is a non-polluting emission system which releases and acts under a condition of high pressure, while it also solves the environmental problems of the existing energy to cause global warming due to carbon dioxide emissions. The power system of the invention is very convenient because its working environment is non-restricted, i.e. it can be broadly used in the fields of oil exploitation, smelting, chemical industry, construction of border, island and national defense etc.

Variable valve actuator

A valve actuation system is provided. A fluid actuator is configured to selectively prevent a valve from moving to a particular position. A source of fluid is in fluid communication with the fluid actuator. A bi-directional control valve is configured to control a flow of fluid between the source of fluid and the fluid actuator. A fluid passageway connects the bi-directional control valve with the fluid actuator. A relief valve is in fluid communication with the fluid passageway and moveable between a closed position to prevent a flow of fluid therethrough to create a high pressure circuit in the valve actuation system and an open position to allow a flow of fluid therethrough to create a low pressure circuit in the valve actuation system.

Self-aligning rocker arm and push rod design

本发明涉及自对准摇杆臂和推杆设计。摇杆臂可包括主体，该主体限定枢转孔并且包括衬垫，该衬垫远离枢转孔隔开预定距离。该衬垫可包括周界表面和顶部表面，该顶部表面限定盲孔，以与盲孔形成交叉部，且该顶部表面可包括围绕盲孔设置的多个对准特征件。

Two-stroke engine

본 발명에 따른 2-행정 엔진(10)은 크랭크실 (12)을 통해 외부 공기 유입 포트로부터 연장되는 복수의 흡기 통로(40a, 40b)를 가지며 상기 크랭크실(12) 내에 공기와 오일 증기로부터 흡기 공기량이 분리된다. 상기 피스톤(44)은 상기 피스톤(44)이 왕복운동할 때 크랭크실 흡기 통로(40a, 40b) 내에 텔레스코프식으로 형성되어 달려 있는 하나 또는 그 이상의 상응하는 유입 튜브(48a, 48b)를 가진다. 모든 흡기 공기는 상기 통로(40a, 40b)를 통해 운동하며 크랭크실 용적의 나머지 부분으로부터 분리된다. 유입 공기량이 피스톤 크라운(54) 내의 동심 포핏 밸브(52)를 통과하여 연소 챔버(58) 내에 유입된다. 종래의 직접 분사 또는 포트 분사에 의해 연료가 공급되며 하나 또는 그 이상의 종래의 스파크 플러그에 의해 점화된다. 배출물은 실린더 헤드(18) 내에 있는 포핏 밸브(60)를 통해 배출되고, 크랭크샤프트가 구동하는 캠(62)으로부터 푸시로드(66)와 로커 암(68)에 의해 포핏 밸브(60)가 작동된다. The two-stroke engine 10 according to the present invention has a plurality of intake passages 40a and 40b extending from the external air inlet port through the crank chamber 12 and intake from air and oil vapors in the crank chamber 12. Air volume is separated. The piston 44 has one or more corresponding inlet tubes 48a, 48b which are telescopically formed within the crankcase intake passages 40a, 40b as the piston 44 reciprocates. All intake air moves through the passages 40a and 40b and is separated from the rest of the crankcase volume. The amount of inlet air passes through the concentric poppet valve 52 in the piston crown 54 and enters the combustion chamber 58. Fuel is supplied by conventional direct injection or port injection and ignited by one or more conventional spark plugs. Effluent is discharged through poppet valve 60 in cylinder head 18 and poppet valve 60 is actuated by push rod 66 and rocker arm 68 from cam 62 driven by the crankshaft. .

V type engine

Intake valve device capable of implementing two-stage switching of gas distribution phase and diesel engine

一种配气相位两级切换的进气门装置及柴油机，包括依次连接的凸轮(1)、挺柱导杆组(2)、摇臂(3)、可变气门桥(7)和进气门(12)，其还包括：进气门驱动活塞(5)，该进气门驱动活塞(5)能够与摇臂(3)相抵，而可变气门桥(7)内设置有容置上述进气门驱动活塞(5)的活塞腔，其中，该活塞腔的高压端通过高压油路(8)与主油路(10)可通断联通，而活塞腔的低压端通过低压油路(11)与主油路(10)联通，为了保证活塞腔内部压力的建立，保证有足够的压力开启进气门(12)，活塞腔内设置有由低压端向高压端导通的单向阀(7)。该凸轮(1)为具有高低两种凸轮型线的多升程凸轮，能够兼顾两种不同工况对配气相位的要求，实现发动机性能与排放目标的最优。而设置的进气门驱动活塞(5)和液压油路实现对凸轮(1)升程的切换。

Coupling device for a valve operating device

Die vorliegende Erfindung betrifft eine Ventilbetätigungsvorrichtung (100) zur Betätigung wenigstens eines Ventils einer Hubkolbenmaschine mit veränderlichem Ventilhub, insbesondere eine Ventilbetätigungsvorrichtung (100) einer Hubkolbenbrennkraftmaschine, wobei die Ventilbetätigungsvorrichtung (100) wenigstens einen Kipphebel (102) mit wenigstens einem ersten Kipphebelteil als erstes Ventilbetätigungselement (102B) und einem zweiten Kipphebelteil (102A) als zweites Ventilbetätigungselement (102A) aufweist, wobei die Kipphebelteile (102B, 102A) beide drehbar um eine gemeinsame Drehachse gelagert sind, wobei die Ventilbetätigungsvorrichtung (100) gekennzeichnet ist durch eine Kopplungsvorrichtung (10), die ein erstes Kopplungselement (11), ein zweites Kopplungselement (12) und eine Sperreinrichtung (13) aufweist. Das erste Kopplungselement (11) und das zweite Kopplungselement (12) sind zumindest innerhalb definierter Grenzen entlang einer ersten Achse relativ zueinander verschiebbar, wobei mittels der Sperreinrichtung (13) die Relativverschiebung der beiden Kopplungselemente (11;12) zueinander entlang der ersten Achse (A) zumindest in eine erste Richtung blockierbar ist. Die Sperreinrichtung (13) weist ein zumindest in einem definierten Bereich in Umfangsrichtung um die erste Achse (A) drehbares Sperrelement (13B) auf, wobei die Relativverschiebung der beiden Kopplungselemente (11;12) entlang der ersten Achse (A) zumindest in die erste Richtung blockiert ist, wenn sich das Sperrelement (13B) in einer Blockier-Position befindet. The present invention relates to a valve actuating device (100) for actuating at least one valve of a reciprocating engine with a variable valve lift, in particular a valve actuating device (100) of a reciprocating internal combustion engine, the valve actuating device (100) having at least one rocker arm (102) with at least a first rocker arm part as the first valve actuating element ( 102B) and a second rocker arm part (102A) as the second ...

The cam axis adjustment device being connected on twin cam shaft

本发明涉及一种叶片单元型的液压式的凸轮轴调整装置(1)，所述凸轮轴调整装置具有预备用于与双凸轮轴(3)的内轴(2)抗扭连接的定子(4)，其中，在所述定子(4)中形状配合地容置有用于抗扭地容纳内轴(2)的连接件(5)，并且所述凸轮轴调整装置具有能够相对于所述定子(4)转动的、预备用于与双凸轮轴(3)的外轴(6)抗扭连接的转子(7)，其中，所述连接件(5)被有间隙地容置在所述定子(4)中以补偿在凸轮轴调整装置(1)的运行状态中所述内轴和外轴(2，6)的轴向公差和/或相对倾斜；本发明还涉及一种具有所述凸轮轴调整装置(1)的阀驱动单元(11)。

Desmodromic valve system and retrofit kit

A desmodromic valve and cam system is provided which is adapted to be installed into an internal combustion pushrod engine. The system includes a camshaft assembly having a plurality of removably attached cam lobes installed onto a main camshaft; a valve connector assembly installed onto a distal tip of each valve; a rocker having a valve movement end mechanically linked to a respective valve connector and a pushrod connecting end mechanically linked to an upper distal end of a pushrod; a hydraulic lifter follower assembly assigned to each valve which includes a pin disposed on a distal end thereof which is adapted to engage and track a follower groove formed on each respective cam lobe; and a pushrod assigned for each valve, each pushrod having lower distal end mechanically linked to a respective hydraulic follower lifter. The configuration of the aforementioned system eliminates the need to use valve springs to return the valves to a closed position, thereby, increasing horsepower and fuel efficiency, while simultaneously reducing emissions.

Variable cut off intake valve system

An intake valve system for fluid pressure expanders wherein two annular and concentric valves are interposed between a source of pressurized working fluid and an expander cylinder and any pressurized working fluid between the valves can enter the cylinder only when both valves are in the open position. The period of one valve being open is fixed and the period of the other valve being open is variable with respect to the angular position of the crankshaft. Each valve can be provided with an opening to permit the pressure exerted by the working fluid to be equalized on opposing valve surfaces. When the valves have these openings, a fixed means within the inner concentric valve prevents pressurized fluid from entering the cylinder when only one valve is in the closed position.

Method for joining a functional module, and functional module

A method of joining a functional module comprises the steps of providing a frame structure that defines a bearing channel with at least one circumferentially closed bearing seat; providing at least two attachment parts; providing a hollow shaft that comprises at least one support section for the at least two attachment parts, wherein the attachment parts comprise a mounting seat that is adapted to a support section; feeding the attachment parts in the bearing channel in a first feeding direction; feeding the hollow shaft in the bearing channel in a second feeding direction, wherein the hollow shaft is inserted into the respective mounting seat of the at least two attachment parts; and, subsequent to the feeding of the attachment parts and the hollow shaft in the bearing channel, at least sectionally widening the hollow shaft for a torsionally rigid fixation of the at least two attachment parts with their mounting seats at the respective support section of the hollow shaft.

Dual-lobed cam for a camshaft and engine assembly

A dual-lobed cam for a camshaft of an internal combustion engine is presented herein. The camshaft includes an elongated shaft rotationally disposed in relation to a crankshaft via a timing assembly. The dual-lobed cam includes an enlarged base circle region circumferentially disposed around the camshaft, with two oppositely disposed lobes extending therefrom. The lobes define lift regions off of the base circle which drivingly engage a valve assembly. The camshaft disclosed herein may include a rotational speed of one-fourth the rotational speed of a crankshaft or crankshaft sprocket, thereby preserving power and increasing efficiency of the overall engine.

Engine equipment

Charge changing control device, reciprocating engine and method for operating a charge changing control device

The present invention refers to a charge changing control device (10) for a reciprocating engine, comprising at least one cam follower (26) configured for being pivotably actuated around a pivot axis (P) upon rotational movement of a camshaft (12), and an adjustment unit (36) configured for setting at least three different charge-changing modes of the device (10) by translationally displacing the pivot axis (P) relative to a rotational axis (R) of the camshaft (12).

MECHANICAL GAS DISTRIBUTION ASSEMBLY TO THE AUTOMATISC

Reciprocating internal combustion engine

公开了一种具有可调压缩比的内燃机。发动机(1010)包括：壳体(1013)；活塞组件(1012)，它可调整地连接到壳体(1013)中；及气缸，它可往复运动地设置在壳体(1010)内。在内燃机工作期间，气缸相对于活塞组件(1013)进行往复运动。发动机(1010)还包括压缩比调整机构(1300)，该机构与活塞组件(1012)相连接。压缩比调整机构(1300)适合在工作期间调整发动机(1010)的压缩比。在本发明的另一个方面中，发动机(1010)包括：排气门，它与气缸相流体连通；及曲轴(1016)，它连接到气缸上，其中曲轴(1016)包括突出部以驱动排气门(1052)。

Torque multiplier engines

Torque multiplier engines, and associated methods and systems, are disclosed herein. An internal combustion engine in accordance with a particular embodiment can include a connecting rod operably coupling a pair of opposing pistons. The engine can further include a first bearing coupled to the connecting rod and positioned to engage a first cam groove of an inner cam drum. A second bearing coupled to the connecting rod can be positioned to engage a second cam groove on an outer cam drum. The first and second bearings can translate linear motion of the opposing pistons to rotation of the cam drums.

The method and apparatus for operating internal combustion engine

本发明涉及一种用于操作内燃机的方法和装置。提供部分负载模式，该部分负载模式针对高达部分负载上限的发动机负载的低速航行被优化，该部分负载上限在最大发动机负载的40％至75％的范围内。另外，针对在部分负载上限以上的发动机负载提供高负载模式。在部分负载模式下，至少一个进气门(4)在比高负载模式下延后的关闭角被关闭。

Multi-mode high efficiency internal combustion engine

An internal combustion engine can be operated in an efficiency mode to provide a first power output range between zero and a transition power output level and in a power mode to provide a second power output range between the transition power output level and a maximum power output level. A first ignition timing and a first air/fuel ratio of the mixture can be used in the efficiency mode to avoid premature auto-ignition of a mixture of inlet air and a fuel according to an octane rating of the fuel and a compression ratio exceeding approximately 13:1. A second ignition timing and a second air/fuel ratio of the mixture can be used in the power mode to avoid premature auto-ignition of the mixture according to the octane rating of the fuel and the compression ratio exceeding approximately 13: 1. To further enable knock free operation of such an engine, turbulence can be imparted to the mixture to promote a faster burn duration and high temperatures that may lead to premature auto-ignition of the mixture can be avoided.

Camshaft / camshaft gear arrangement and pressure strategy for a motor in which this is used

Ein Motor (10) weist eine Nockenwelle (40) auf, die in einem Gehäuse (11) zur Drehung um eine Drehachse gestützt ist. Ein Nockenwellenzahnrad (50) ist an einem Ende (44) der Nockenwelle (40) angebracht und weist eine erste Drucklagerfläche (51) auf. Ein Druckring (60) ist an dem Nockenwellenzahnrad (50) angebracht und weist eine zweite Drucklagerfläche (61) auf. Ein Druckringhalter (73) ist an dem Gehäuse (11) mit einer Mehrzahl von Schrauben (82) angebracht und weist ein Paar von Druckflächen auf, die zwischen der ersten Drucklagerfläche (51) des Nockenwellenzahnrads (50) und einer zweiten Drucklagerfläche (61) des Druckrings (60) eingeschlossen sind. Der Druckringhalter (73) legt auch einen Teil eines Schmierverbindungsdurchgangs (12) fest, der einen Druckausgleich zwischen einer Mehrzahl von Schmierkanälen (13) erleichtert, die parallel angrenzend an die Nockenwelle (40) angeordnet sind. A motor (10) has a camshaft (40) supported in a housing (11) for rotation about an axis of rotation. A camshaft gear (50) is attached to one end (44) of the camshaft (40) and has a first thrust bearing surface (51). A thrust ring (60) is mounted on the camshaft sprocket (50) and has a second thrust bearing surface (61). A thrust ring retainer (73) is mounted to the housing (11) with a plurality of screws (82) and has a pair of pressure surfaces defined between the first thrust bearing surface (51) of the camshaft sprocket (50) and a second thrust bearing surface (61) of the camshaft sprocket (50) Pressure ring (60) are included. The thrust collar retainer (73) also defines a portion of a lubrication connection passage (12) that facilitates pressure equalization between a plurality of lubrication passages (13) arranged in parallel adjacent to the camshaft (40).

Actuator for a Schwenkmotorversteller and Schwenkmotorversteller for a camshaft

Die Erfindung betrifft einen Aktuator für einen Schwenkmotorversteller, wobei der Schwenkmotorversteller ein Hydraulikventil aufweist, das mit Hilfe des Aktuators (10) verstellbar ausgebildet ist, und wobei der Aktuator (10) an einem Gehäuseabschnitt eines den Schwenkmotorversteller aufnehmenden Aggregates aufnehmbar ausgebildet ist, und wobei der Aktuator (10) ein Halteelement (20) und ein Gehäuse (16) mit funktionsrelevanten Bauteilen (12, 22, 24) aufweist, wobei er mit Hilfe des Halteelementes (20) am Gehäuseabschnitt befestigt ist, wobei das Halteelement (20) unabhängig vom Gehäuse (16) ausgebildet ist.Erfindungsgemäß ist zur gesicherten Positionierung des Aktuators (10) am Gehäuseabschnitt ein Abschnitt des Halteelementes (20) den Aktuator (10) in Richtung dessen axialer Erstreckung gegen den Gehäuseabschnitt abstützend ausgebildet, wobei zumindest teilweise ein Gehäusedeckel (26) des Gehäuses (16) zwischen dem Abschnitt des Halteelements (20) und dem Gehäuseabschnitt angeordnet ist. Des Weiteren betrifft die Erfindung einen Schwenkmotorversteller für eine Nockenwelle. The invention relates to an actuator for a Schwenkmotorversteller, wherein the Schwenkmotorversteller comprises a hydraulic valve which is adjustable with the aid of the actuator (10), and wherein the actuator (10) is receivable on a housing portion of the Schwenkmotorversteller receiving unit, and wherein the Actuator (10) has a holding element (20) and a housing (16) with functionally relevant components (12, 22, 24), wherein it is fixed by means of the holding element (20) on the housing portion, wherein the holding element (20) independently of the housing According to the invention, for secure positioning of the actuator (10) on the housing section, a section of the holding element (20) supports the actuator (10) in the direction of its axial extent against the housing section, at least partially a housing cover (26) of the housing Housing (16) between the portion of the holding member (20) ...

V-type engine

In a V-type engine, intake and exhaust rocker arms in each bank are arranged in a substantially inverted-V-shape in a plan view, so that side end portions of corresponding intake and exhaust push rods are positioned adjacent to each other. Slipper portions of first and second intake cam followers have end portions at one end along the axial direction of a camshaft protrude respectively in opposite directions to each other so that they face each other across an intake cam therebetween. Slipper portions of first and second exhaust cam followers have end portions at one end along the axial direction of the camshaft protrude respectively in opposite directions to each other so that they face each other across an exhaust cam therebetween. This reduces the distance between the push rods in each bank to provide a compact valve-operating device.

Vehicle and propulsion system including an internal combustion engine

An internal combustion engine (300) for a vehicle, such as a motorcycle (20), includes a crankcase (380), two banks of cylinders (320a, 320b) projecting from the crankcase (380) in a V-configuration, a plurality of pushrods (364), and a plurality of camshafts (360a, 360b, 360c) supported by the crankcase (380). The two banks of cylinders (320a, 320b) include a first cylinder bank that projects from the crankcase (380) to a first cylinder head (340a), and a second cylinder bank that projects from the crankcase (380) to a second cylinder head (340b). The plurality of pushrods (364) extend between the crankcase (380) and the first and second cylinder heads (340a, 340b), and the plurality of camshafts include only the first, second and third camshafts (360a, 360b, 360c).

Diesel Engine and Method for Flexible Passive Regeneration of Exhaust After-Treatment Devices

A diesel engine and method for operating a diesel engine with exhaust after-treatment device regeneration capability are disclosed. The diesel engine may employ an exhaust after-treatment device such as a diesel particular filter to remove soot from the combustion gases exhausted by the engine. In order to regenerate the exhaust after-treatment device, the temperature of the exhaust gases is raised sufficiently to do so. The temperature of the exhaust gases is raised to such a level by employing multiple compression and expansion strokes of the piston in certain engine cycles, with a combustion event associated with each pair of compression and expansion strokes. The engine may operate in a four stroke, one combustion cycle during conventional power operation, and switch to an enhanced combustion cycle during regeneration. The enhanced combustion cycle may include eight strokes such as one intake stroke, three compression strokes, three expansion strokes, and one exhaust stroke, with three combustion events. The engine may switch between cycles by using a cam follower with lost motion device capability, an electrical actuator, or any other selectively actuable valve actuator to prevent opening of the intake and exhaust valves during regeneration.