Mahle Koenig Kommanditgesellschaft Gmbh & Co Kg

Ecomotors International

Ecomotors, Inc.

Franz J Laimboeck

Peter Hofbauer

Tyler R Garrard

Will Robert Hippen

Will Robert Nielsen Hippen

Roger Budde

Siegfried Lins

A rotor of an electric machine is disclosed that resists expansion of the rotor components even at high rotational speed. The rotor includes first and second pluralities of laminations having slots to accept rotor bars. A support disk, also having slots, is placed between the laminations. The support disk, into which the rotor bars are slid, restrains the rotor bars from bending outwardly at high rotational speeds of the rotor. The rotor bars are further restrained at the ends by end rings, which have apertures into which ends of the rotor bars are placed. In some embodiments, containment rings are placed over axial extension of the end rings to prevent outward bowing at high speeds. In some embodiments, the rotor includes a stiffener sleeve to provide additional resistance to expansion during high rotational speeds.

Electric motor rotor

Master and slave pullrods are disclosed in which a master pullrod is coupled to a journal of a crankshaft. The slave pullrod indirectly couples to the crankshaft by coupling to the master pullrod. Such a configuration allows two connecting rods to be coupled to the journal of the crankshaft inline with each other.

Master and slave pullrods

A method for the machine-milling of intake and/or exhaust ducts formed in a cylinder head includes working off the inner wall surfaces of the intake and/or exhaust ducts at least in part, preferably completely, with a multi-axis, preferably five-axis, CNC-controlled cherry head in a stabbing movement. Grooves are thus formed in the inner wall surfaces that extend primarily in the flow direction of the ducts.

Method for milling a cylinder head and cylinder head

A piston has a piston head, a piston pin support projecting from the piston head, and a mantle wall connected to the piston head. The mantle wall is formed with two tubular pieces that are disposed concentrically relative to one another and which are connected at a periphery of the piston head. A hollow space is formed between the tubular pieces.

Piston having a hollow cooling space defined in a mantle wall

An engine cylinder with a piston and at least one, preferably two or four, cam-operated valves leading to the combustion chamber. A valve seat of the valve is formed in the cylinder wall immediately laterally adjacent to the cylinder bore or to the cylinder chamber. The valve axis and the cylinder axis enclose an acute angle A of 5&#xb0;&#x2266;A&#x2266;25&#xb0;, preferably 10&#xb0;&#x2266;A&#x2266;20&#xb0;. The axis of the inlet channel or the outlet channel leading to the valve seat in a plane defined by the valve axis and the cylinder axis is inclined at an angle B of 25&#xb0;&#x2266;B&#x2266;65&#xb0;, preferably 40&#xb0;&#x2266;B&#x2266;50&#xb0; to the valve axis.

Engine and cylinder with gas exchange through the cylinder wall

A combustion chamber of an internal combustion engine has at least a first and a second exhaust port, which are decoupled downstream of the combustion chamber. The first exhaust port is opened before the second exhaust port during an expansion stroke of the piston. The first exhaust port is coupled to a high-pressure turbine and the second exhaust port is coupled to a low-pressure turbine. By directing exhaust gases at higher pressure to the high-pressure turbine and gases at lower pressure to the low-pressure turbine, the overall energy recovery from the exhaust gases is greater than a system with one or more exhaust turbines coupled in series with all of the exhaust ports.

Exhaust system for an internal combustion engine

An opposed piston engine has an outer piston and an inner piston, which are disposed in a cylinder and are driven in opposite directions and delimit a common combustion chamber. The inner piston drives a crankshaft via a connecting rod and the outer piston drives the crankshaft via a pair of traction connecting rods. The outer piston is supported by a connecting rod that is guided linearly in a guide block, and the connecting rod protrudes from a bridge that is connected at both end portions to a traction connecting rod. Accordingly, it is provided that each traction connecting rod contains a U-shaped curved piece of tube, preferably with parallel legs, which with its U-shaped curved portion encloses a part of the circumference of the pivot bearing supported by the bridge and is fixed, especially bolted, with its leg ends onto a traction connecting rod bearing mounted on the crankshaft.

Opposed piston engine

A cylinder of an externally fired, two-stroke engine has at least two exhaust channels. At least the inflow openings of the exhaust channels are located or formed symmetrical in relation to a plane of symmetry containing a longitudinal center axis of the cylinder. The inflow openings of the exhaust channels lying above each other in the cylinder wall surface and spaced apart by wall webs lie distributed over a peripheral region of the cylinder wall surface which in relation to the longitudinal center axis corresponds to a central angle Z of 175&#xb0;&#x2266;Z&#x2266;280&#xb0;, preferably 180&#xb0;&#x2266;Z&#x2266;265&#xb0;.

Symmetric extended porting

A W6 engine has two W3 engine units disposed juxtaposed on a common crankshaft. Exhaust pipes of the cylinders containing the pistons driving the common crankshaft are guided to an exhaust. Each cylinder has at least one intake valve and at least one exhaust valve. The intake valves for the individual cylinders are disposed in wall portions of the respective cylinders oriented in the same circumferential direction about the crankshaft or lateral portions of their cylinder head. The exhaust valves for the individual cylinders are disposed in opposite circumferential direction. Each exhaust valve closes an exhaust pipe, which is led from the valve seat of the exhaust valve to the outer surface of the W3 engine unit in which the cylinder with the exhaust valve is disposed.

W6-motor

A bearing connection having a connecting rod connected rigidly to a piston and a crankshaft driven by the connecting rod. The connecting rod is connected on the crankshaft side to a transverse bearing for a sliding block, the sliding block being mounted such that it can move to and fro in the transverse bearing and a rolling contact bearing being arranged in the sliding block in order to receive the crank pin of a crankshaft. At least one cavity is formed in the piston crown and, in the area thereof close to the piston longitudinal axis, is connected to an oil feed line running through the connecting rod and that the oil feed line in the connecting rod is led or extended to the end region thereof remote from the piston and, from there, is led onward into the interior of the transverse bearing via a transfer channel.

Bearing connection, engine cylinder, and engine with the bearing connection

A fuel injector system for raising fuel to its supercritical state and injecting the supercritical-state fuel to the combustion chamber of an internal combustion engine is disclosed. A plurality of injector embodiments provides alternative ways to heat the pressurized fuel to its supercritical state. Injection of supercritical fuel into the combustion chamber is known to improve fuel entrainment and reducing ignition delay to thereby increase combustion rate, which leads to an increase in fuel efficiency. According to some embodiments, the system provides for preventing coking that may otherwise occur in an exhaust gas heat exchanger used for preheating the high pressure fuel. In other embodiments, engine cold start assistance is provided by storing pressurized, heated fuel in an insulated container.

Supercritical-state fuel injection system and method

A rotor for use in an electrical motor which includes an anti-expansion ring centrally mounted on the rotor to restrict the extent rotor elements mounted on a rotatable shaft may expand outward due to centrifugal forces generated when the motor is operated. Such motors are suited for use in high rotational speed environments such as electrically controlled turbochargers.

An electrically controlled turbocharger has a motor mounted on a shaft in a motor housing between a turbine and compressor. Oil is sprayed onto the motor stator to cool the stator. An oil gallery is disposed above the stator to receive lubricating oil and contains apertures that perform as jets to allow oil to be sprayed directly on the motor stator. A coolant jacket is formed in the turbocharger housing between the turbine and the motor to allow liquid coolant to circulate therein and dissipate heat from the turbine end prior to reaching the motor components. Other embodiments provide for a stator component to be submerged in flowing cooling oil.

Growing community of inventors

Goleta, CA, United States of America

Franz J Laimboeck