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WO/2024/088604A1 |
The invention relates to a poppet valve body (2) with a sealing surface (4) on a valve disk, the sealing surface (4) being provided with recesses (6).
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WO/2024/088562A1 |
A valve (105) for a pressurizable enclosure (100) includes a valve head (302) provided at a first portion of the valve, a connecting portion (300) extending between the first portion and a second portion of the valve, a chamber (304) com...
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WO/2024/074863A1 |
Disclosed herein is a valve mechanism for a cylinder head of an engine. The disclosed valve mechanism prevents damage to car engine parts due to breakage of timing belt/chain. The disclosed valve mechanism includes an engine valve, a spr...
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WO/2024/075648A1 |
The present invention suppresses variations in an oil leakage rate and stabilizes the oil leakage rate. Provided is a valve-stem-sealing seal apparatus (1) which seals the space between a valve stem (2) and a valve stem guide (3) for g...
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WO/2024/058814A1 |
An applicator is positionable within a valve seat bore of an engine and includes a body portion. A sealing portion extends radially outwardly from the body portion for sealing abutment with the bore. A wiper portion extends radially outw...
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WO/2024/013918A1 |
Provided are: a cylinder head that can prevent knocking caused by premature ignition in a combustion chamber of an internal combustion engine that uses decarbonized fuel containing hydrogen; and an internal combustion engine. A cylinder ...
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WO/2023/250150A1 |
The application relates to a cylinder head offset chamfer design. An engine includes a cylinder block and a cylinder head assembly. A plurality of cylinders are defined between the cylinder block and the cylinder head. The cylinder head ...
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WO/2023/238146A1 |
The conical valve comprises tubular housing body, a cylindrical body, a conical piston, a conical cylinder, a bushing nut, a threaded cap, at least one fluid seal, and a knob. In disclosed conical valve the conical piston gets fitted in ...
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WO/2023/223782A1 |
This sliding member is provided with a sliding film on at least the surface thereof. The sliding film contains copper-based alloy particles each containing titanium, in which a titanium oxide layer is provided on at least a portion of an...
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WO/2023/218549A1 |
Provided is a machine for partially annealing a friction pressure welding part of a hollow valve, characterized in that only a friction pressure welding part and a part thermally affected by friction pressure welding are annealed using a...
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WO/2023/147394A1 |
A reed valve assembly includes a retainer, one or more reed cages, and a plurality of reed petals. The retainer includes a flange, first and second openings, and a center retainer separating the first and second openings. The reed cages ...
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WO/2023/088581A1 |
A poppet valve, in particular a hollow poppet valve, includes: a valve stem; a valve body having along a longitudinal axis, a first end with a neck portion to which the valve stem is coaxially arranged and having along a longitudinal axi...
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WO/2023/082335A1 |
A valve and a high-temperature-resistant alloy thereof. The alloy comprises: C: 0.45-0.55 (wt)%; Si: 0-0.45 (wt)%; Mn: 8.00-10.00 (wt)%; P: 0-0.040 (wt)%; S: 0-0.030 (wt)%; Cr: 24.00-26.00 (wt)%; Ni: 8.00-13.00 (wt)%; N: 0.40-0.60 (wt)%;...
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WO/2023/051604A1 |
Disclosed in the present invention is a universal gas valve for gas intake and exhaust of an engine, the universal gas valve comprising a cylinder head and a valve cavity, a gas intake chamber, a gas exhaust chamber, a main gas valve ass...
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WO/2023/039854A1 |
A hollow poppet valve of an internal combustion engine and a machining method therefor: firstly, forming a valve blank (1) from bar stock by means of forging, then drilling a hole from a flat bottom of a high-position pre-formed cavity (...
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WO/2023/025565A1 |
The invention relates to a valve bridge (42) for a valve train (10) of an internal combustion engine, comprising a bridge actuation region (44), via which the valve bridge (42) can be actuated by means of a first rocker arm (32) of the v...
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WO/2023/023277A1 |
The present disclosure provides a control valve including a camshaft and one or more poppet assemblies. In general, the one or more poppet assemblies can include a poppet carriage that is moveable by the camshaft between a first end posi...
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WO/2023/009015A1 |
The invention relates to a piston with outer housings that is connected to at least two coupled crankshafts, transforming the reciprocating linear motion of the piston into rotary motion of the crankshafts. A cylinder sleeve with the pis...
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WO/2023/002986A1 |
Provided is an iron-based sintered alloy valve seat having excellent wear resistance. The present invention provides an iron-based sintered alloy valve seat for an internal combustion engine, wherein: Si-Cr-Ni-Fe-based and Mo-based int...
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WO/2023/001640A1 |
An internal combustion engine (1) comprises an engine block (2), a poppet valve (3) which is slidably mounted to the engine block (2), a camshaft (7) for operating the poppet valve (3) which camshaft (7) is rotatably mounted to the engin...
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WO/2023/286227A1 |
The present invention provides a method that is for manufacturing a hollow engine valve and that facilitates production management. This method is for manufacturing a hollow engine valve 100 that has a shaft part 111, an umbrella-shape...
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WO/2022/230046A1 |
The present invention addresses the problem of providing a sintered alloy valve guide with which valve adhesion can be prevented even in a high-temperature environment. This problem is resolved by means of a sintered alloy valve guide ...
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WO/2022/207148A1 |
A poppet valve, in particular, a hollow poppet valve, can include a valve stem; a valve cap; a valve body comprising a longitudinal axis with a stem end to which the valve stem is arranged and a cap end to which the valve cap is arranged...
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WO/2022/199828A1 |
Aspects of the present invention relate to a composition for use in laser cladding a surface of a machined or cast aluminium part (100a), the composition comprising a matrix material and a hardener, wherein the hardener is present in an ...
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WO/2022/199837A1 |
A casting for an internal combustion engine comprising an air inlet opening and/or an exhaust outlet opening located in a combustion chamber. The air inlet opening (393) and/or the exhaust outlet opening form the outermost edge of an air...
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WO/2022/199843A1 |
A lean-burn gasoline engine (110) is described, which comprises an air intake port having an air intake port inlet, an air intake port outlet, and an air channel (45) connecting the air intake port inlet to the air intake port outlet, a ...
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WO/2022/199846A1 |
The combustion chamber inlet of a lean-burn gasoline engine (110) is connected to an air intake port outlet (15a, 15b) and comprises a throat where the air intake port (10) outlet meets the combustion chamber inlet. A movable valve (51) ...
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WO/2022/199832A1 |
A lean-burn gasoline engine (110), comprising an air intake port having an air intake port inlet, an air intake port outlet, and an air channel (45) connecting the air intake port inlet to the air intake port outlet, a combustion chamber...
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WO/2022/194407A1 |
The invention relates to a valve rotating device comprising: a valve stem seal (2) having a valve rotating device (6); a cylinder head support (8); and a spring support (10) intended to rest against a valve spring during operation. The v...
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WO/2022/195730A1 |
Provided is a hollow engine valve that increases the strength of a shaft part. A hollow engine valve 100 that includes a shaft part 111, an umbrella part 113 that spreads like an umbrella at a base end of the shaft part 111, and a cool...
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WO/2022/194495A1 |
A method for producing a poppet valve (10) armored at least in the region of a valve seat, comprising the step of providing an essentially cylindrical or cup-shaped semi-finished product (2, 4) made of valve steel (6) that is coated with...
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WO/2022/194584A1 |
The invention relates to a valve drive (10) for an internal combustion engine, comprising at least one outlet valve (12), having at least one engine brake rocking lever (16) that can be pivoted about a pivot axis (20), by means of which ...
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WO/2022/185758A1 |
Provided is a valve seat that is made of an iron-based sintered alloy and that has excellent abrasion resistance in a wide temperature range from a low temperature to a high temperature in a corrosive environment. The valve seat made of ...
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WO/2022/172240A1 |
The valve system (1), associable with an appliance (2) provided with one working chamber (3) and with one transit channel (4) of a fluid communicating with the working chamber (3) through one transit opening (5), comprises: - one valve d...
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WO/2022/158181A1 |
The present invention is a hollow shaft engine valve which has a shaft section 101 and an umbrella section 102 which expands in diameter in an umbrella-like fashion on one end of the shaft section 101, and in which a cooling material N c...
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WO/2022/155651A1 |
All-stroke-variable internal combustion engines, that may include a piston slidably positioned within an engine cylinder for asymmetrical reciprocation and a primary crankshaft and a half- speed crankshaft to be operatively engaged for r...
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WO/2022/133467A1 |
An apparatus for a combustion cylinder of a reciprocating piston engine includes a combustion cylinder end face component including a first side configured to face the combustion cylinder and extending in a radial direction of the combus...
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WO/2022/125004A1 |
The present invention relates to the cladding valve mechanism that increases the operating efficiency of internal combustion engines characterized in that it comprises of outer valve (1) containing at least one slotted air duct (1.1) of ...
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WO/2022/107003A1 |
A valve spring retainer for an internal combustion engine includes a body having a lower portion and an upper portion. The lower portion defines a radial flange and a first opening extending axially therethrough. The upper portion includ...
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WO/2022/085130A1 |
A film formation section is formed on an annular edge section along an opening (16a) of an intake port (16) or an opening (17a) of an exhaust port (17). The cross section, along the radial direction of the intake port (16) or the exhaust...
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WO/2022/061379A1 |
A cylinder head for an internal combustion engine, wherein the cylinder head (1) comprises at least one first component part (12) and at least one second component part (13) joined to the at least one first component part (12), wherein t...
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WO/2022/059310A1 |
Provided is a sintered valve seat which is press-fitted into the cylinder head of an internal combustion engine and in which a seat layer that repeatedly engages with a valve is integrated with a support layer that contacts the cylinder ...
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WO/2022/056387A1 |
A mechanical seal clamping assembly includes a base, a fulcrum, a lever, and a cap. The base supports a mechanical seal. The lever is pivotally coupled to the fulcrum at a first pivot spaced from the base. The cap is coupled to the lever...
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WO/2022/037354A1 |
A piston-type valve of an internal combustion engine, comprising a valve cavity (2). Vent holes (3) are formed in the periphery of the valve cavity (2); a valve (4) capable of moving up and down along the valve cavity (2) is mounted in t...
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WO/2022/024283A1 |
The present invention provides an engine valve that can suppress a rise in the temperature of intake air and suppress a high temperature increase in the engine valve, and a production method therefor. Engine valves 20, which are capabl...
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WO/2022/013951A1 |
Provided are: a coolant filling device for a hollow-head engine valve, with which a coolant can reliably and efficiently be filled into the hollow portion of an engine valve; and a coolant filling method. A coolant filling device (1), ...
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WO/2022/008623A1 |
Aspects of the present invention relate to a valve seat (20) for a poppet valve of an internal combustion engine, wherein the poppet valve comprises a head and a stem behind the head, the valve seat comprising: an aperture (21) configure...
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WO/2021/253812A1 |
An engine in-cylinder braking system and a hydraulic tappet matching same, the hydraulic tappet (40B) comprising a tappet body (42B), a plunger (41B), and an elastic apparatus for making the plunger (41B) be in a retracted state after oi...
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WO/2021/245812A1 |
This exhaust gas recirculation valve (100) comprises: a first partition part (130) which is provided to an inner wall of a housing (110) facing a lateral surface of a valve shaft (120), surrounds the valve shaft (120) in the circumferent...
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WO/2021/238229A1 |
Disclosed is a hydraulic tappet (40A), wherein one end of the tappet body (42A) is provided with an oil inlet (421B), and the other end thereof is open; a plunger (41A) extends into the tappet body (42A) from the open end of the tappet b...
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