The present invention provides an assembly structure of a hybrid transmission including an engine clutch retainer provided with an assembly hole; a coupling member assembled through the assembly hole; and a sealing cover configured to seal the assembly hole.

An engine includes a housing and a combustion assembly. The combustion assembly includes an annular bore and a combustion piston assembly disposed within the annular bore. The combustion piston assembly includes a set of pistons, a first sealing ring connected to each piston and a second sealing ring connected to each piston. The second sealing ring is configured to provide selective access between the annular bore and at least one fluid conduit carried by the engine. The engine includes at least one valve configured to move between a first position within the annular bore to allow the combustion piston assembly to travel within the annular bore from a first location proximate to the at least one valve to a second location distal to the at least one valve and a second position within the annular bore to define a combustion chamber.

The present invention relates to a sealing arrangement for a rotatable shaft of a combustion engine. The rotatable shaft comprises a crankshaft journal, a crankshaft gear and a flywheel. The sealing arrangement comprises a sealing member configured to be arranged in an annular space between a surface defining an opening for said rotatable shaft through a stationary wall of the combustion engine and an outer periphery surface of the rotatable shaft. The sealing member comprises a radially outer portion to be fixedly arranged to the surface defining said opening. The crankshaft gear comprises a portion provided with a smooth outer periphery surface and that the sealing member comprises a radially inner portion comprising at least one sealing lip configured to sealingly abut against the outer periphery surface of the crankshaft gear.

A sealing device may comprise: a flange that extends perpendicularly relative to a central axis of first portion; an inner cylindrical portion having an engaging surface, and a protruding portion extending between the flange and the inner cylindrical portion; a rigid body component; and an elastic component having a main oil lip and an excluder lip, wherein the main oil lip is proximate to or in contact with the flange at a first location, and wherein a the excluder lip contacts the inner cylindrical portion; wherein a gap is defined by surfaces of the first portion and the elastic component between the first location and the second location, and wherein, when the sealing device is installed in a bore so that the engaging surface is fixedly connected to the shaft and a machine is operated so that the shaft rotates, the volume of the gap changes by less than 10%.

A seal retainer includes a main body and a guide wall. The main body includes a circular hole, an opposed surface opposed to the cylinder block, and a projection. The flange is arranged in the circular hole with the sealing member located between the circular hole and the flange. The projection includes a recess at a part of the projection in the circumferential direction of the circular hole. The recess extends from the distal end of the projection in an opposite direction from the cylinder block. The guide wall is arranged outward of the recess in a radial direction of the circular hole to guide air that flows in the circumferential direction of the circular hole from the radially outer side of the projection to the radially inner side of the projection through the recess.

The present invention provides an assembly structure of a hybrid transmission including an engine clutch retainer provided with an assembly hole; a coupling member assembled through the assembly hole; and a sealing cover configured to seal the assembly hole.

A housing assembly for a rotary engine, has: a rotor housing extending around an axis, the rotor housing having an inner face facing a rotor cavity; side housings secured to opposite sides of the rotor housing, the rotor cavity bounded axially between the side housings; and a seal received within a groove at an interface between the rotor housing and a first side housing, the groove annularly extending around the axis, located outwardly of the inner face, and overlapping a peripheral section of the first side housing, the seal having: an elastomeric member compressed between the peripheral section and the rotor housing; and a shield disposed inwardly of the elastomeric member, the shield having a melting point above a temperature of combustion gases, the shield in contact with both of the peripheral section of the first side housing and the rotor housing.

A rotary internal combustion engine includes a rotor housing having a peripheral wall circumscribing a rotor cavity and a rotor disposed within the rotor cavity. A side housing is secured to the rotor housing and a plate defines a seal running surface for the rotor. The plate is disposed between a portion of the side housing and the rotor housing and at least one shim is disposed between the plate and the side housing for spacing the plate apart from contact with the side housing.

A rotary internal combustion engine includes a rotor housing having a peripheral wall circumscribing a rotor cavity and a rotor disposed within the rotor cavity. A side housing is secured to the rotor housing and a plate defines a seal running surface for the rotor. The plate is disposed between a portion of the side housing and the rotor housing and at least one shim is disposed between the plate and the side housing for spacing the plate apart from contact with the side housing.

A frame assembly and method for mounting a rear main crankshaft seal to a rear region of a crankshaft for a Porsche. The assembly provides an annular cylinder that firmly encircles a Porsche rear main crankshaft seal. The cylinder and the retained seal are configured to press into a crankshaft groove that forms at the rear region of the crankshaft. The cylinder maintains the seal in an annular shape, even after a long duration of use. The cylinder comprises a lubricant that coats the seal. Two brackets fasten the cylinder and the retained seal in a crankshaft groove at the crankshaft. The assembly is specifically designed for: a Porsche Boxter 996 made in the years of 1997-2010 or a Porsche Carrera 911 made in the years 2005-2010.