| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 184600500 | Crank-type machines | 23 |
| 20080236950 | Internal-Combustion Engine Having a Pressure Lubrication System According to the Dry-Sump Principle - An internal-combustion engine having a pressure lubrication system according to the dry-sump principle, particularly for an opposed-cylinder engine, having a crankcase in which an oil scavenging space is constructed in the lower part feeds the lubricating oil by way of an oil return feed pump equipped with an oil scavenging pipe to an oil storage tank. The lubricating oil situated in the oil storage tank is fed by way of a main feed pump to the consuming devices. The oil storage space forming the wet sump is also integrated in the crankcase of the internal-combustion engine. | 10-02-2008 |
| 20080245613 | Internal Combustion Engine with Pressure Lubrication by the Dry Sump Principle - An internal combustion engine having pressure lubrication according to the dry sump principle, in particular for an opposed cylinder engine, has a crankcase in which an oil suction space (dry sump) is formed in the lower part. The lubricant oil is conveyed from the oil suction space to an oil supply container (wet sump) via an oil return pump equipped with an oil suction line. The lubricant oil in the oil supply tank and/or in the oil supply space is conveyed to the consumer via a main delivery pump. An annular space arranged around the cylinder is provided as part of the oil returned to the oil supply tank. | 10-09-2008 |
| 20080277201 | ENGINE SUPERCHARGER LUBRICATING APPARATUS - An engine supercharger lubricating apparatus is provided with an oil passage, a pump and an air introducing passage. The oil passage is configured and arranged to supply a lubricating oil to a supercharger of an engine and to return the lubricating oil from the supercharger to an oil pan. The pump is arranged in the oil passage at a location downstream of the supercharger for pumping the lubricating oil from the supercharger to the oil pan. The air introducing passage is arranged to introduce air into the oil passage at a location downstream of the supercharger and upstream of the pump. | 11-13-2008 |
| 20080296092 | CRANKCASE, OIL CHANNEL MOLD CORE FOR PRODUCING A CRANKCASE AND PROCESS FOR PRODUCING A CRANKCASE - A crankcase of an internal combustion engine with at least one main lubricant channel for supplying the internal combustion engine with lubricant and with at least one oil return flow channel ( | 12-04-2008 |
| 20080308353 | Lubrication System and Internal Combustion Engine Comprising Such a System - This lubrication system includes a pump feeding a main line which provides oil to a support interface for a crank shaft of oil engine and an auxiliary line connected to at least one piston cooling jet. The pump is a variable flow pump controlled on the basis of oil pressure in the main line. A proportional means is mounted on the auxiliary line. This means is adapted to control oil flow in the auxiliary line depending on the working conditions of the engine, e.g. oil temperature, torque to be delivered or rotational speed of the engine. | 12-18-2008 |
| 20080314686 | SYSTEM AND METHOD FOR ENGINE LUBRICATION - The invention resides in an internal combustion engine ( | 12-25-2008 |
| 20080314687 | POWER UNIT FOR MOTORCYCLE - A power unit for a motorcycle includes an internal combustion engine provided with a crankcase rotatably supporting a crankshaft with an axial line extending in a vehicle-width direction. An oil pump is mounted on the crankcase with a balancer rotatably supported by the crankcase. Rotational power from the crankshaft is transmitted to a pump driven member provided on a pump shall of the oil pump and to a balancer driven member coaxially interlinked with and connected to the balancer so as to transmit power to the balancer. The power unit is downsized by bringing a balancer and an oil pump into a close arrangement. The pump driven member and the balancer driven member are offset from each other in a vehicle-width direction and are located at such a position so as to at least partially overlap each other as viewed from the side of the vehicle-width direction. | 12-25-2008 |
| 20090000871 | System and Method for Lubricating Power Transmitting Elements - A lubrication system and method are disclosed. The system includes a main engine bearing and a crankshaft in operational association with the bearing. The crankshaft includes an end having a cavity with a power transmitting element (e.g., splines). The cavity can receive and engage a mating mechanism to transmit power thereto. The crankshaft further includes a first oil passage that is disposed within the end and a second oil passage that extends from the main engine bearing into the crankshaft. The first oil passage intersects the second oil passage. The system can also include a pump mechanism for circulating lubricating oil from the main engine bearing to the crankshaft through the second oil passage and the first oil passage, and to the cavity to lubricate the power transmitting element. During engine operation, a constant supply of lubricating oil can be provided to the power transmitting element to reduce component wear. | 01-01-2009 |
| 20090008191 | Piston Apparatus - In order to decrease internal friction of a heat engine that converts a reciprocating motion of a piston into a rotational motion, a piston apparatus ( | 01-08-2009 |
| 20090014246 | Lubrication system for four-stroke engine - A lubrication system for a small lightweight four-stroke engine is disclosed. The lubrication system, provided with a weight at one end of a flexible oil tube inserted into an oil reservoir, is capable of providing a sufficient lubrication to components of the engine which may operate in a horizontal posture, a vertical posture, or any posture therebetween. | 01-15-2009 |
| 20090014247 | Oil Sump And Method Of Its Production - An oil sump for use in internal combustion engines or transmissions, where the oil sump consists of sheet metal shaped by deep drawing and has a reinforced edge, by means of which it rests, in its mounted state, in the internal combustion engine or the transmission with a seal positioned between them. The reinforcement consists of at least one separate metal part, which is mounted on the edge of the oil sump by positive locking and/or nonpositive locking with deformation of the edge of the oil sump. | 01-15-2009 |
| 20090026015 | Oil Pan With Flow Management Tunnel - A system and method for managing return oil flow in a multiple cylinder internal combustion engine having a plurality of pistons reciprocating within corresponding cylinders of an engine block to rotate a crankshaft include an oil pan having a shallow portion and a deeper sump portion, wherein the shallow portion includes at least one tunnel extending between the shallow portion and the sump portion to block airflow generated by rotation of the crankshaft and facilitate oil flow through a localized high pressure region between the shallow portion and the sump portion. | 01-29-2009 |
| 20090084633 | STRUCTURE FOR DISPOSING OIL FILTER IN POWER UNIT FOR MOTORCYCLE - A power unit includes a transmission mechanism installed in a crankcase with a clutch apparatus for connecting and disconnecting the transmission of power between a crankshaft and the transmission mechanism being installed in a clutch chamber. An oil filter is set between an oil pump driven by the power transmitted from the crankshaft and portions to be supplied with oil is attached to a clutch cover. The provided power unit guarantees a certain degree of freedom in design for the size of the inner diameter of the cylinder bore, the location of the timing transmission mechanism, and the like. A smaller size of the power unit along the axial direction of the crankshaft needs to be achieved. The oil filter is disposed between the axis of the crankshaft and the axis of the clutch apparatus and below the axis of the crankshaft and the axis of the clutch apparatus. | 04-02-2009 |
| 20090095571 | HIGH PRESSURE OIL MANIFOLD FOR A DIESEL ENGINE - A cast oil manifold ( | 04-16-2009 |
| 20090188755 | OIL CONDITION SENSING METHODS AND SYSTEMS - An engine oil system comprises an oil condition sensing device and a control module. The oil condition sensing device includes an electrically actuated member and is in fluid communication with an engine oil reservoir. The control module selectively causes current to be supplied to the oil condition sensing device to actuate the member, measures the current, determines a parameter of the current, and selectively identifies at least two of an oil level, an oil change event, and an oil viscosity level based on the parameter. | 07-30-2009 |
| 20090218169 | ENGINE LUBRICATION SYSTEM - An engine lubrication system for a multi-cylinder engine, comprising: plurality of crank chambers that are partitioned by crankshaft bearing portions of the engine; pumps that take out oil from a lower portion of the engine; oil collection passages that are respectively provided for the crank chambers, a designated number of the oil collection passages being merged and connected to at least one of suction ports of the pumps; an oil storage section that temporarily stores the oil taken out from the lower portion of the engine; a lubrication part that supplies the oil in the oil storage section to a portion to be lubricated of the engine; and a pressure variation suppression section that is provided between the suction ports of the pumps and the designated number of the crank chambers to be merged, the pressure variation suppression section suppressing pressure variations in the crank chambers. | 09-03-2009 |
| 20100032241 | Lubricating Systems - A lubricant containing a minor amount of a polyalkene-substituted succinimide of Mn 1800 to 2800, as a first base, is circulated through a lubricating system so that the succinimide forms salts with at least a portion of combustion acids therein. The lubricant is then contacted with an immobilised second base, stronger than the first base, that displaces at least a portion of the succinimide from the salts to form retained second base: combustion acid salts and release the succinimide into the lubricant. | 02-11-2010 |
| 20100116594 | OIL SPRAYING APPARATUS - An oil-spraying apparatus includes: a base frame provided with a guide rail on an upper surface thereof; a mounting plate movably mounted on the guide rail by a rail block; a moving unit mounted at one side of the base frame so as to reciprocate the mounting plate on the base frame; and an oil-spraying unit mounted on an upper portion of the mounting plate, receiving compressed air and oil respectively from an air compressor and an oil distributor connected to an oil tank through an oil hose and an air hose. The apparatus can spray the oil to both the oil seal mounting hole and the one end portion of the crankshaft. | 05-13-2010 |
| 20130248292 | Release and Retention of Viscosity Modifiers Based on Oil Temperature - Disclosed are articles, lubrication systems, and methods that sequester lubricant viscosity modifiers via adsorption of the viscosity modifier molecules onto a molecular sieve material at lubricant temperatures below a threshold temperature and release of the viscosity modifier molecules from the molecular sieve material at lubricant temperatures at about the threshold temperature so that the viscosity modifier molecules are in the lubricant at temperatures from about the threshold temperature and higher. In this way, the viscosity modifier molecules are removed from the lubricant at temperatures where the lubricant has sufficient viscosity but released into the lubricant when they can useful increase the lubricant viscosity because it otherwise would be too low. | 09-26-2013 |
| 20130333980 | LUBRICATING DEVICE FOR POWER UNIT - A lubricating device for a power unit includes an oil pan, an oil tank being separated from the oil pan, a scavenging pump for circulating the received oil of the oil pan to the oil tank, and a feed pump to feeding oil stored in the oil tank to the engine and the transmission, wherein an oil reservoir for storing a certain amount of oil to immerse a lower part of a clutch that connects and disconnects a transmission route between the engine and the transmission is provided in a power unit case, and a first overflow passage is provided in the oil tank such that when the stored oil in the oil tank is increased beyond a first level, the first overflow passage allows the increased oil to overflow into the oil reservoir side. | 12-19-2013 |
| 20150096840 | ENGINE OIL SUPPLY SYSTEM - The present invention discloses an engine oil supply system, which includes an oil pan for storing lubricating oil. An oil suction pipe is disposed in the oil pan, the oil suction pipe is twisted in the oil pan, and at least two oil suction portions are disposed on the oil suction pipe, so that at least one oil suction portion is below a lubricating oil level when the engine is in any position. The technical solution disclosed by the present invention can ensure that the lubricating oil can enter each part of the engine for lubrication through the oil supply system when the engine is used either in a leant or inverted manner. | 04-09-2015 |
| 20150377097 | RELIEF DEVICE FOR OIL CIRCUIT OF ENGINE - A relief device including: an oil pump; an upstream flow passage provided from a discharge section side of the oil pump to an engine; an oil-pressure relief valve relieving oil by a valve body moving due to oil pressure; and a temperature-sensitive relief valve B relieving oil by detecting an oil temperature and opening and closing steplessly. The oil-pressure relief valve and the temperature-sensitive relief valve are disposed in parallel in the upstream flow passage. A portion of the pump housing of the oil pump is formed in an integrated fashion with a casing of an oil circulation mechanism. An oil filter | 12-31-2015 |
| 184600800 | Cylinder lubrication | 1 |
| 20080314688 | Internal combustion engine with provision for lubricating pistons - An internal combustion engine including a cylinder with bore and a piston disposed to reciprocate in the bore is operated by moving the piston in the bore between top and bottom dead center positions and applying lubricant to a portion of the piston that protrudes from the bore. Lubricant is wiped from the piston as the piston travels into the bore toward its top dead center position. | 12-25-2008 |
