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An aircraft having vertical takeoff and landing capability provided with at least first and second laterally extending paddle wheels rotatable on a central axis perpendicular to the longitudinal axis of the aircraft fuselage and between its nose and tail.
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| Number | Title | Issue Date |
| 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 |
| 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 |
| 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 |
| 7261075 | Hydraulic support element The invention relates to a hydraulic support element (1) for a valve gear for an internal combustion engine. Said element consists of a cylindrical hollow case (2) in whose bore hole (3) a pressure piston (4) made of a glass or carbon fib... | 08/28/2007 |
| 7246589 | Valve train of an internal combustion engine comprising a tappet and a tappet pushrod The invention proposes a valve train of an internal combustion engine comprising a tappet (7) and a tappet pushrod (1) that is actuated by said tappet (7), said tappet pushrod (1) being at least partly hollow and comprising on one end ( | 07/24/2007 |
| 7246590 | Valve train of an internal combustion engine comprising a tappet and a tappet pushrod The invention proposes a valve train (1) of an internal combustion engine comprising a tappet (7) and a tappet pushrod (1) that is actuated by said tappet (7), said tappet pushrod (1) being at least partly hollow and comprising on ... | 07/24/2007 |
| 7210439 | Switching element for a valve train of an internal combustion engine The invention proposes a switching element (1) for a valve train of an internal combustion engine, particularly for valve deactivation, with a simple-to-implement measure for adjusting the coupling lash of its coupling means (8) in a receptacle (6 | 05/01/2007 |
| 7207303 | Switching element A switch element (1) is proposed for valve shut-off, fabricated as cam follower for a plunger rod valve drive of an internal combustion engine, having an outer part (2) and an inner element (4) axially movable in its bore (3) and with rot... | 04/24/2007 |
| 7146954 | Hydraulic valve-lash-adjusting element A reverse spring hydraulic valve-lash-adjusting element for the valve train of an internal combustion engine having a plunger (1), in the plunger head (2) of which a control valve (5) is arranged, this control valve (5) controlling a cent... | 12/12/2006 |
| 7121244 | Anti-rotation guide for a roller follower valve lifter An anti-rotation guide for preventing rotation of a roller follower valve lifter in an internal combustion engine. The guide has an outer surface for engaging an engine bore and an inner surface for slidably receiving the lifter. One end of the guide includes an ant... | 10/17/2006 |
| 7089900 | Hydraulic lash adjuster and improved method of assembly thereof A hydraulic lash adjuster (11) for an internal combustion engine, and an improved method of assembly of such a lash adjuster. The lash adjuster (11) is of the type having a body (13), a plunger (15), and a check valve assembly (17)... | 08/15/2006 |
| 7077090 | Valve train with hydraulic lash adjustment Valve train with hydraulic lash adjustment in the entire timing train, in which oil is delivered from the oil supply space of the hydraulic valve-lash adjuster (HLA) to the valve rocker arm via a hollow push rod, a choke limiting the oil discharge, the choke being d... | 07/18/2006 |
| 7025025 | Metering socket The present invention relates to a socket, comprising, a body including a plurality of passages, a first surface, a second surface, and an outer surface; the first surface is configured to accommodate an insert; the second surface is configured to cooperate with an ... | 04/11/2006 |
| 6941915 | Hydraulic lash adjuster and improved method of assembly thereof A hydraulic lash adjuster (11) for an internal combustion engine, and an improved method of assembly of such a lash adjuster. The lash adjuster (11) is of the type having a body (13), a plunger (15), and a check valve assembly (17)... | 09/13/2005 |
| 6932041 | Apparatus and method for maintaining controlled orientation of a roller lifter follower used in conjunction with a variable phased lifter In a variable phased valve lifter of an internal combustion engine, a roller lifter is allowed to move along a constraining face of a constraining mechanism in a first direction, and the constraining mechanism is allowed to move freely in a second direction. As the ... | 08/23/2005 |
| 6920857 | Deactivation hydraulic valve lifter having a pressurized oil groove A deactivation hydraulic valve lifter which includes an elongate lifter body having a substantially cylindrical outer surface and an inner wall, the inner wall defining at least one annular pin chamber therein. The outer surface defining at least one annular groove ... | 07/26/2005 |
| 6837201 | Apparatus and method for lessening the accumulation of high boiling fraction from fuel in intake valves of combustion engines An intake valve for a combustion engine having an oil reservoir and adapted for combusting fuel is disclosed. The intake valve includes a valve stem and a valve guide arranged proximate the valve stem. The valve guide and valve stem define a first clearance dimensio... | 01/04/2005 |
| 6820581 | Valve lifter The present invention is related to a valve lifter for use in an internal combustion engine. The valve lifter comprises a body adapted to be reciprocally slidable within a valve lifter bore of an engine. The valve lifter includes a rotably mounted cam roller engagin... | 11/23/2004 |
| 6802288 | Deactivation hydraulic valve lifter having a pressurized oil groove A deactivation hydraulic valve lifter which includes an elongate lifter body having a substantially cylindrical outer surface and an inner wall, the inner wall defining at least one annular pin chamber therein. The outer surface defining at least one annular groove ... | 10/12/2004 |
| 6651779 | Valve lift control unit with simplified lubrication An improved lubrication arrangement for an internal combustion engine of the push tube (59) type. A carrier structure (43) is fixed relative to an upper surface of the cylinder head (31) and includes a fixed fulcrum location (49) for each rocker arm (51).... | 11/25/2003 |
| 6619251 | Tappet for an internal combustion engine A tappet is used in a valve-operating mechanism of an internal combustion engine. The tappet has a top wall and the upper surface of the top wall is engaged with a cam. The lower surface is engaged on a poppet valve which moves up and down. A downward pro... | 09/16/2003 |
| 6615783 | Switchable tappet for the direct transmission of a cam lift to a tappet push rod The invention proposes a switchable tappet (1) for the direct transmission of a cam lift to a tappet push rod. A coiled compression spring (15), used as a lost motion spring, for loading the inner element (4) is shifted axially out of a housing (2). For t... | 09/09/2003 |
| 6470843 | Rocker arm adjustment screw assembly An adjustment screw assembly (10) having an adjustment screw (11) engaged to a rocker arm (14) of a combustion engine (12) is disclosed. The adjustment screw (11) comprises a lower member (26) and a vertical member (28) wherein the vertical member (28) th... | 10/29/2002 |
| 6463898 | Rocker lever ball socket retainer The present invention provides a mechanism of retaining a rocker lever ball socket on a rocker lever ball. The mechanism provided is a retaining cap which is adapted to fit over and securely engage to the socket through a tab and groove arrangement and is... | 10/15/2002 |
| 6328009 | Valve lifter apparatus A valve lifter apparatus is provided including a valve lifter body with predetermined oil paths for increase lubrication to a rolling member for engaging a lobe of a camshaft. An anti-rotation member for prevent rotation of the valve lifter in the lifter ... | 12/11/2001 |
| 6318324 | Sealed hydraulic lifter for extreme angle operation A hydraulic lash adjuster for an engine is provided that includes a resilient seal received over a plunger assembly above a fluid return aperture in the plunger body. The hollow interior of the pushrod which supplies the hydraulic lash adjuster with fluid... | 11/20/2001 |
| 6216583 | Piston pump for high pressure fuel supply A piston pump of the roller tappet type for high-pressure fuel delivery in fuel injection systems of internal combustion engines, particularly in common rail injection systems. A drive shaft that is supported in the pump housing and has a number of cam-li... | 04/17/2001 |
| 6209498 | Roller valve lifter with oiling channel A valve lifter of the present invention includes a tappet body having a forked housing for receiving a cylindrical roller. The cylindrical roller is provided with a bearing assembly and a shaft extending therethrough to operatively couple the roller to th... | 04/03/2001 |
| 6192845 | Hydraulic lash adjuster A hydraulic lash adjuster (1) having a plunger assembly (3) including an upper plunger (4) and a lower plunger (5), the plungers being disposed within a body (2) defining a bore (2b,7), and in conventional leakdown plungers, cooperating with the bore to d... | 02/27/2001 |
| 6116570 | Electromagnetic actuator with internal oil system and improved hydraulic lash adjuster An electromagnetic actuator 10 is provided and includes an upper electromagnet 12, a lower electromagnet 14 spaced from the upper electromagnet and an armature 16 mounted for movement between the upper and lower electromagnets. Shaft structure 20 is opera... | 09/12/2000 |
| 6067948 | Device for actuating at least one gas exchange valve of an internal combustion engine A device for actuating at least one load change valve of an internal combustion engine has at least one load change valve arranged in a cylinder head of an internal combustion engine wherein the load change valve has a valve shaft and a closing spring for... | 05/30/2000 |
| 5901676 | Hydraulic lash compensator A hydraulic lash adjuster (130) for an internal combustion engine which includes a body (132) and a plunger (134) of thin-walled construction in which features such as hydraulic fluid collector volumes between the plunger and the body and a check valve se... | 05/11/1999 |
| 5862784 | Hydraulic lash adjuster and check valve opening arrangement therefor A hydraulic lash adjuster of the type in which the plunger assembly (15) includes a ball plunger element (50), and defines a valve opening (57) in the lower plunger member (19). A check valve member (53) is seated in the valve opening (57), for opening th... | 01/26/1999 |
| 5860398 | Engine tappet A tappet comprises a foot having a convex cam contact surface and an axially extending hub, a tappet body having a lower body portion with a lower axial bore formed therein to receive the axially extended hub of the foot, and a bearing assembly positioned... | 01/19/1999 |
| 5855191 | Metering valve for ball plunger or pushrod socket A hydraulic lash adjuster of the type including a ball plunger (61) defining a passage (63), or a body portion (85) defining a passage (87). A metering valve is disposed in the passage, and in accordance with the invention (FIGS. 2-4), a shank portion (77... | 01/05/1999 |
| 5809842 | Ceramic sliding component The present invention is intended to provide a sliding member that can prevent abnormal wear and partial wear of the mating metal sliding component even when an oil contaminated with exhaust gas components is used. A ceramic sliding component is manufactu... | 09/22/1998 |
| 5797364 | Top trough cam roller pin A cam roller pin for mounting a cam roller with a substantially uniform width to a rocker lever includes a substantially cylindrical pin body bounded by a pair of oppositely-disposed ends and having a length which extends from one end to the opposite end,... | 08/25/1998 |
| 5758613 | Hydraulic lash adjuster and biased normally open check valve system therefor A hydraulic lash adjuster of the sealed leakdown type in which the plunger assembly (15) is received within a blind bore (13) defined by a body (11). The plunger assembly (15) includes upper (17) and lower (19) plunger elements, to define a low pressure c... | 06/02/1998 |
| 5749341 | Valve lifter for internal combustion engines A mechanical valve lifter for an internal combustion engine comprises a head section having a recessed portion on an upper face thereof, a skirt section formed integral with the head section and adapted to be in sliding-contact with a lifter guiding bore ... | 05/12/1998 |
| 5746167 | Valve lifter To increase available space for intake ports in an internal combustion pushrod type overhead valve engine, pushrod and pushrod bores running adjacent the ports are repositioned away from the ports. New valve lifters are provided with pushrod seats which a... | 05/05/1998 |
