Quotables
"Telephone, n. An invention of the devil which abrogates some of the advantages of making a disagreeable person keep his distance. "
Ambose Bierce
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 8151752 | Deactivating hydraulic lash adjuster for oriented mounting in an engine A deactivating hydraulic lash adjuster comprising a pin housing slidably disposed in a body and having at least one lock pin disposed in a transverse bore for extending into a receiver feature in the body to lock the two together during periods of engine operation i... | 04/10/2012 |
| 8136495 | Switchable support element for a valve train of an internal combustion engine A switchable support element (1) for a valve train of an internal combustion engine, said support element (1) comprising a housing (2) that can be arranged through an outer peripheral wall (3) in a reception of the internal combustion eng... | 03/20/2012 |
| 8001941 | Lash adjuster A lash adjuster for a valve gear includes a plunger movable upward and downward and including a high-pressure chamber, a leak path defined by an inner circumferential surface of a body and an outer circumferential surface of the plunger so that operating oil reserve... | 08/23/2011 |
| 7992532 | Switchable hydraulic lash adjuster with spherical locking pins The switchable hydraulic lash adjuster uses balls that move radially in order to lock and unlock the switchable elements in the hydraulic lash adjuster. An axially movable piston acts on the ball to force it to engage and to allow it to disengage the inner housing. | 08/09/2011 |
| 7954468 | Mechanical adjuster A mechanical adjuster that automatically increases or decreases or decreases valve clearance is provided that includes: a housing (12) having threaded portions (24, 26); a threaded member (14) thread-coupled with the threaded portion (24)... | 06/07/2011 |
| 7931001 | Valve train of an internal combustion engine having a cylindrical valve tappet The invention proposes a push-rod valve train having an adjustable valve tappet (1). This has an outer part (2a, 2b), an inner part (8) and a lost-motion spring (10), which forces the inner part (8) towards a r... | 04/26/2011 |
| 7921822 | Switchable dual lifter The switchable dual lifter has two hydraulic lash adjusters, one which is fixed within the common housing, and the other which is movable to allow for deactivation of one of the two valves acted on by the dual lifter. Using the dual lifter with a switchable hydrauli... | 04/12/2011 |
| 7845327 | Hydraulic lash adjuster with damping device A system and method for lash adjustment in the valvetrain of an internal combustion engine include a hydraulic lash adjuster having a damping device to limit rate of movement of a plunger relative to a body to control response time of the lash adjuster reducing or e... | 12/07/2010 |
| 7779805 | Sealed lash adjuster and method for adjusting amount of liquid sealed in sealed lash adjuster The liquid is sealed in the lash adjuster so that the volume “V1” of the gas, in the reservoir chamber when the lash adjuster is being produced and the plunger protrudes from the body, is equal to or more than 1.24 times as great as the sum of the volume ... | 08/24/2010 |
| 7762224 | Switchable support element for a valve train of an internal combustion engine A switchable support element (1) comprising a housing (2) in whose bore (4) an axially displaceable pressure piston (7) extends, said support element (1) comprising at least one coupling element (8) for an optional coupling ... | 07/27/2010 |
| 7644693 | Open ended mini lash adjuster A hydraulic lash adjuster (17;61;81) in which the body (19) defines a body bore (39) extending over substantially the entire axial length of the body, thus making it possible to finish the bore (39) by a more accurate process, such as hon... | 01/12/2010 |
| 7637238 | Hydraulic valve play compensating element A hydraulic valve play compensating element for generating valve play compensation for a gas exchange valve in a valve operating mechanism of an internal combustion engine, having a piston housing in which a piston, which is elastically supported against the piston ... | 12/29/2009 |
| 7578276 | Automatic tappet clearance adjusting device An automatic tappet clearance adjusting device, comprising an adjusting unit adjusting the projected amount of a rocker arm by advancing and retreating an adjust screw to and from the tip of the rocker arm, a pressure setting part electrically controlling the pressu... | 08/25/2009 |
| 7543555 | Hydraulic lash compensation device with mechanical lift loss feature A hydraulic lash compensation device for an engine includes a plunger assembly slidingly received within a body bore to define a high pressure chamber. The plunger assembly includes a lower pressure chamber, an upper plunger element, and a lower plunger element. A m... | 06/09/2009 |
| 7509933 | Valve lash adjuster having electro-hydraulic lost-motion capability In a Type 2 engine, a valve deactivation hydraulic lash adjuster (DHLA) in accordance with the invention replaces a conventional hydraulic lash adjuster in the train of a gas-exchange valve in a compression-ignited engine. In a Type 3 engine, a similar DHLA is dispo... | 03/31/2009 |
| 7497194 | Tappet clearance automatic adjusting device and adjusting method A tappet clearance automatic adjusting device comprising an adjusting unit for advancing/retracting an adjust screw from the forward end of a rocker arm and adjusting the projection amount, a torque detecting section for detecting the torque by rotating the adjust s... | 03/03/2009 |
| 7464678 | Hydraulic lash adjuster A hydraulic lash adjuster includes a cylindrical body having a central cylindrical bore. A hollow plunger is reciprocable in the bore and includes a reservoir chamber therein. The plunger has a close clearance with the bore. A high pressure chamber is defined by the... | 12/16/2008 |
| 7434557 | Hydraulic valve clearance compensation element A hydraulic reverse spring valve clearance compensation element (RSHVA) for a valve train of an internal combustion engine comprising: a housing (2), which has a blind bore (3), in which a piston (4) is guided ... | 10/14/2008 |
| 7431001 | Rail used as a torsional stop for the valve train of an internal combustion engine, and roller tappet arrangement A rail used as a torsional stop for the valve train of an internal combustion engine is disclosed. The rail includes spaces (10) which are arranged in a row spaced apart at a distance from one another within the rail (8) and accommodate inserted valve ... | 10/07/2008 |
| 7421994 | Hydraulic lash adjuster having a check valve cartridge sub-assembly An improved hydraulic lash adjuster including a cup-shaped adjuster body, and a plunger assembly disposed within the adjuster body. The plunger assembly includes a stepped axial bore extending from a body inner end to a central oil passage opening onto a hemispheric... | 09/09/2008 |
| 7415951 | Valve timing mechanism of an internal combustion engine A valve timing mechanism of an internal combustion engine of a motor vehicle, having a camshaft having at least one cam (18), via which a switchable valve timing mechanism element (1) can be loaded with a cam stroke (s), in which locking means (12 | 08/26/2008 |
| 7409941 | Valve-deactivating hydraulic lifter having a vented internal lost motion spring A deactivating hydraulic valve mechanism includes a hydraulic element assembly disposed within cup within a pin housing slidably disposed within a bore in a body. A transverse bore in the pin housing contains selectively-retractable locking pins that engage a lockin... | 08/12/2008 |
| 7395792 | Deactivation roller hydraulic valve lifter A deactivation valve lifter includes a lifter body. The lifter body has a first end configured for engaging a cam of an engine and at least one annular pin chamber. A pin housing includes a pin housing bottom. The pin housing bottom defines at least one pin stop ape... | 07/08/2008 |
| 7380531 | Variable valve drive for changing the control timing of cam-actuated gas-exchange valves A variable valve drive for changing control timing of cam-actuated gas-exchange valves of an internal combustion engine is provided, with a tappet (6a, 6b, 6c), which, with convex cam engaging contour (5), engages a c... | 06/03/2008 |
| 7360517 | Valve actuator for actuating a gas exchange valve of an internal combustion engine A valve actuator for operating a gas exchange valve of an internal combustion engine has a sleeve-shaped positioning piston which is connected to a valve stem, has at least two shell-shaped wedge pieces enclosing a stem end of the valve stem, whose radially outer pe... | 04/22/2008 |
| 7350492 | Guide gib for the valve operating mechanism of an internal combustion engine In a guide gib for the valve operating mechanism of an internal combustion engine, having holding spaces (12, 13), which are arranged in the gib (8) at intervals one behind the other, for valve tappets, wherein to prevent a valve tappet from rotating a... | 04/01/2008 |
| 7341034 | Hydraulic tappet A hydraulic tappet including: a bottomed cylindrical body; a plunger slidably fitted in the body; a check valve mounted at one end of the plunger so that the check valve is interposed between a high-pressure chamber and an oil chamber, the high-pressure chamber bein... | 03/11/2008 |
| 7328676 | Hydraulic valve play compensation element A hydraulic valve play compensation element for an internal combustion engine is provided as a reverse-spring/free-ball element, with a cylindrical housing, a cylindrical piston (21) guided therein with sealing play and a control valve (20), which is a... | 02/12/2008 |
| 7325523 | Valve timing gear of an internal combustion engine In a valve timing gear of an internal combustion engine having hydraulic valve clearance adjusting elements (21), each element (21) comprises a rotationally symmetrical housing (22), which is guided so that it is longitudinally displaceable in a... | 02/05/2008 |
| 7322329 | Assembly process for hydraulic valve lifters to reduce variation in valve lift Valve lift variation associated with a deactivation roller hydraulic valve DRVHL (DRHVL) can result in unacceptable valve overlap and idle conditions for an internal combustion engine. Two sources of length variation in a DRHVL are leakdown and residual mechanical l... | 01/29/2008 |
| 7308879 | Deactivation roller hydraulic valve lifter A deactivation valve lifter includes a lifter body. The lifter body has a first end configured for engaging a cam of an engine and at least one annular pin chamber. A pin housing includes a pin housing bottom. The pin housing bottom defines at least one pin stop ape... | 12/18/2007 |
| 7299777 | Fastening of a bearing bolt to a roller tappet A connection of a bearing bolt (6) in a cylindrical housing (1) of a roller tappet (2) that is actuated in a direction of a longitudinal axis (Z) is provided, especially for a tappet push-rod valve drive of an internal combustion engine. The bea... | 11/27/2007 |
| 7299778 | Switchable cam follower The invention proposes a switchable cam follower (1) for a valve train of an internal combustion engine, said cam follower comprising two elements (2, 3) telescoped into each other and, axially displaceable relative to each other. A bore (4) com... | 11/27/2007 |
| 7296549 | Hydraulic valve lash adjusters In hydraulic valve last adjusters for the timing gear of an internal combustion engine comprising cylinder valve lift reversal or deactivation, said adjusters being loaded by cams of one or more camshafts while being made as a combination of switchable lash adjuster... | 11/20/2007 |
| 7296548 | Deactivation roller hydraulic valve lifter A deactivation valve lifter includes a lifter body. The lifter body has a first end configured for engaging a cam of an engine and at least one annular pin chamber. A pin housing includes a pin housing bottom. The pin housing bottom defines at least one pin stop ape... | 11/20/2007 |
| 7284520 | Valve lifter body and method of manufacture The present invention relates to a lash adjuster body, comprising A lash adjuster body, comprising an outer surface, enclosing a cavity, wherein the cavity includes an inner surface configured to accommodate an insert and a spring; and the cavity is fabricated throu... | 10/23/2007 |
| 7284519 | Device for hydraulic lash adjustment A device (1) for the hydraulic lash adjustment for several identically acting gas-exchange valves per cylinder of a valve train of an internal combustion engine is provided, the device (1)including a common housing (2) with directly adjacent pre... | 10/23/2007 |
| 7281329 | Method for fabricating a roller follower assembly The present invention relates to a method for fabricating a roller follower assembly, comprising the steps of fabricating a lash adjuster body, fabricating a roller follower body, fabricating a leakdown plunger, fabricating a socket, wherein at least one of the lash... | 10/16/2007 |
| 7275507 | Rail used as a torsional stop for the valve train of an internal combustion engine, and roller tappet arrangement A rail used as a torsional stop for the valve train of an internal combustion engine is disclosed. The rail includes spaces (10) which are arranged in a row spaced apart at a distance from one another within the rail (8) and accommodate inserted valve ... | 10/02/2007 |
| 7273026 | Roller follower body The present invention relates to a roller follower, comprising an outer surface, enclosing a first cavity, a second cavity, and a transition opening, wherein the first cavity includes a first inner surface configured to house a cylindrical insert the second cavity i... | 09/25/2007 |
