Internal-combustion Engines Patents (Class 123)
- Reversible (Class 123/201)
- With means to control degree of compression (Class 123/202)
- With combusted gas treatment or handling means (Class 123/203)
- With compression volume means in uninterrupted communication with expansion volume means (Class 123/204)
- With fuel injection means (Class 123/205)
- With ignition means (Class 123/210)
- With plural compression volume means (Class 123/212)
- With plural expansion volume means (Class 123/214)
- With charge treatment means (Class 123/216)
- With transfer means intermediate single compression volume means and single expansion volume means (Class 123/221)
- With compression, combustion, and expansion in a single variable volume (Class 123/241)
- Only combustion and expansion of charge in engine (Class 123/247)
- Water in charge (Class 123/25A)
- Water plus heat into charge (Class 123/25B)
- Water into cylinder (Class 123/25C)
- Water plus heat into charge (Class 123/25D)
- Water introduced by mixing with other materials (Class 123/25E)
- Water plus heat by mixing with other materials (Class 123/25F)
- Washers and cleaners (Class 123/25G)
- Washers and cleaners with heat (Class 123/25H)
- Automatic water control (Class 123/25J)
- Automatic water control; thermostatic (Class 123/25K)
- Automatic water control; suction (Class 123/25L)
- Automatic water control; speed (Class 123/25M)
- Automatic water control interconnected with throttle (Class 123/25N)
- Steam injection (Class 123/25P)
- Cooling regulation (Class 123/25Q)
- Chamber temperature control means (Class 123/254)
- Vaporizing in precombustion chamber (Class 123/255)
- Plural precombustion chambers (Class 123/256)
- Two-cycle (Class 123/257)
- Having timed valves to precombustion and main combustion chambers (Class 123/258)
- Having volumetric relation between precombustion and main combustion chambers (Class 123/259)
- With ignition means particularly positioned relative to precombustion and main combustion chambers (Class 123/260)
- With injection means particularly positioned relative to precombustion and main combustion chambers (Class 123/261)
- Having fluid whirling means (Class 123/262)
- Precombustion chamber is carried by a valve (Class 123/264)
- Precombustion and main chambers form an "I" head (Class 123/265)
- Precombustion chamber assembly inserted in spark plug hole (Class 123/266)
- Valveless precombustion chamber (Class 123/268)
- Piston shape complements precombustion chamber discharge (Class 123/269)
- Precombustion chamber liner or coating (Class 123/270)
- Precombustion chamber mounting means (Class 123/273)
- Having combustible mixture forming means (Class 123/274)
- Piston carried precombustion chamber (Class 123/279)
- Atomizer, deflector, or shield in precombustion chamber (Class 123/280)
- Precombustion chamber shape is a figure of revolution (Class 123/281)
- Precombustion chamber having a specific shape (Class 123/285)
- Having specific connecting passage means between precombustion and main combustion chambers (Class 123/286)
- Combustible mixture stratification means (Class 123/295)
- Injector is an integral part of engine valve (Class 123/296)
- Combination igniting means and injector (Class 123/297)
- Injection of fuel onto igniter, deflector, heater, or atomizer (Class 123/298)
- Using multiple injectors or injections (Class 123/299)
- Injected fuel spraying into whirling fluid (Class 123/301)
- Air entering combustion chamber through plural inlets (Class 123/302)
- Injecting diverse fuels or different states of same fuel (Class 123/304)
- Having a particular relationship between injection and ignition characteristics (e.g., nozzle location, spray pattern, timing relative to igniter location, timing) (Class 123/305)
- Automatic coolant flow control (Class 123/41.02)
- Interrelated coolant flow and throttle control (Class 123/41.13)
- System drained and/or heat-storing (Class 123/41.14)
- Indicators and safety devices (Class 123/41.15)
- Coolant sealed in cylinder valve or piston (Class 123/41.16)
- Coolant released into cylinder or valve passages (Class 123/41.17)
- Convertible (Class 123/41.18)
- Refrigerating cycle (Class 123/41.19)
- With vapor generation and/or condensing (Class 123/41.2)
- Multiple cylinders with equalized cooling (Class 123/41.28)
- Parallel flow (Class 123/41.29)
- Mixed air and liquid (Class 123/41.3)
- With cooling of additional parts or materials (Class 123/41.31)
- Internal cooling of moving parts; e.g., hollow valves, pistons, and movable cylinder (Class 123/41.34)
- Liquid coolants other than water and water treatment (Class 123/41.42)
- Movably mounted tank or radiator (Class 123/41.43)
- With liquid coolant circulating means (Class 123/41.44)
- Devices for cooling liquid by air flow (Class 123/41.48)
- Yielding or resilient walls (Class 123/41.5)
- Plural radiators and/or tanks in series (Class 123/41.51)
- Engine or cylinder-mounted heat dissipators (Class 123/41.52)
- With vent (Class 123/41.54)
- Combined (Class 123/41.55)
- Air-cooled (Class 123/41.56)
- Plural materials (Class 123/41.71)
- With jacketed head and/or cylinder (Class 123/41.72)
- Valve seats or guides (Class 123/41.85)
- Simultaneous compression, distinct pistons, restricted communication to a single combustion chamber (Class 123/52.2)
- Cylinder offset from crankshaft axis (Class 123/53.1)
- Cylinders having opposing heads (Class 123/53.6)
- Cylinders radiating (Class 123/54.1)
- Having rotary output shaft parallel to cylinders (Class 123/56.1)
- Cylinders in-line (Class 123/58.1)
- Locked annular piston (Class 123/60.1)
- Combined pump and motor cylinder (Class 123/66)
- Divided pump discharge (Class 123/67)
- Pump compression (Class 123/68)
- Separate air and gas pumps (Class 123/69R)
- Pump and cylinder adjacent (Class 123/70R)
- Pump and cylinder coaxial (Class 123/71R)
- Pump and cylinder inclined (Class 123/72)
- Rear compression
- Exhaust ports (Class 123/65PE)
- Inlet and exhaust ports in two or more planes (Class 123/65A)
- Pumps (Class 123/65B)
- Blowers (Class 123/65BA)
- Port deflectors (Class 123/65PD)
- Scavenging by inertia of exhaust gas and charging by use of pressure waves (Class 123/65E)
- Step piston (see sub. 59 BS) (Class 123/65S)
- Valves (Class 123/65V)
- Lengthwise scavenging list above (Class 123/65VB)
- Lengthwise scavenging exhaust above (Class 123/65VC)
- Intake and exhaust valve in top of cylinder (Class 123/65VD)
- Whirl through piston-controlled ports (Class 123/65W)
- Vacuum intake (Class 123/65WV)
- Single port for inlet and exhaust (Class 123/65SP)
- Exhaust manifolds (Class 123/65EM)
- Ports (Class 123/65P)
- Engine cylinder having a reciprocating sleeve valve (Class 123/312)
- Multiple exhaust (Class 123/315)
- Having subcharger associated with the cylinder (Class 123/316)
- Crankcase compression of air or combustible mixture to be subsequently pumped into the working cylinder (Class 123/317)
- Rear compression of air or combustible mixture to be subsequently pumped into the working cylinder (Class 123/318)
- Scavenging (Class 123/76)
- Single revolution (Class 123/77)
- Variable clearance (Class 123/78R)
- Single poppet valve (Class 123/79R)
- Rotating valve (Class 123/80R)
- Oscillating valve (Class 123/81R)
- Rotating side shaft (Class 123/82)
- Rotating transverse shaft (Class 123/83)
- Adjacent supply and exhaust valves (Class 123/84)
- Aligned supply and exhaust valves (Class 123/85)
- Opposite supply and exhaust valves (Class 123/86)
- Longitudinal valve and lever (Class 123/87)
- Transverse valve and lever (Class 123/88)
- Transverse valve and bell crank (Class 123/89)
- Responsive to deceleration mode (e.g., engine acting as a brake) (Class 123/320)
- Engine speed reduction by overriching the combustible mixture (e.g., choking engine) (Class 123/330)
- Engine speed reduction by fuel cutoff (Class 123/332)
- Engine speed reduction by partial or complete omission of the ignition (Class 123/334)
- Having plural throttle valve structure (Class 123/336)
- Specific throttle valve structure (Class 123/337)
- Fuel injection pump bypass control (Class 123/338)
- Idle speed control (Class 123/339.1)
- Regulator changes length of accelerator linkage (Class 123/342)
- Regulator accessory (e.g., cleaner, adjusting tool, etc.) (Class 123/343)
- Charge proportion varying (e.g., the fuel-air ratio is varied) (Class 123/344)
- By changing valve lift (Class 123/345)
- By changing valve timing (Class 123/347)
- Having condition responsive means with engine being part of a closed feedback system (e.g., cruise control) (Class 123/349)
- Open loop condition responsive (Class 123/395)
- Charge volume varying (e.g., total amount of mixture fed to engine is varied; relative amounts of air and fuel are fixed) (Class 123/402)
- Including cylinder pressure or temperature responsive means (Class 123/435)
- Including means responsive to instantaneous change in engine speed (Class 123/436)
- Including exhaust gas condition responsive means (Class 123/672)
- Air/fuel ratio prior to combustion responsive means (Class 123/704)
- Auxiliary control of carburetor fuel metering (Class 123/437)
- Injection or carburetion system having a series of throttle valves (Class 123/442)
- Alternate or simultaneous lean-rich (Class 123/443)
- Having fluidic logic control means (Class 123/444)
- Fuel injection system (Class 123/445)
- With fuel pump (Class 123/495)
- Fuel flow regulation between the pump and the charge-forming device (Class 123/510)
- Having fuel vapor recovery and storage system (Class 123/518)
- Liquid fuel evaporating by submerged air supply (Class 123/522)
- Liquid fuel evaporating by extended fuel film (Class 123/523)
- Combined liquid and gaseous fuel (Class 123/525)
- Gaseous fuel and air mixer (Class 123/527)
- Constant flow fuel supply (Class 123/530)
- Auxiliary air or gas used to inject fuel (Class 123/531)
- Combustible mixture ionization, ozonation, or electrolysis (Class 123/536)
- Cooling of combustible mixture (Class 123/540)
- Heating of combustible mixture (Class 123/543)
- Supercharger (Class 123/559.1)
- Oxidant is solely oxygen (Class 123/567)
- Exhaust gas used with the combustible mixture (e.g., emission control Exhaust Gas Recirculation (EGR) valve) (Class 123/568.11)
- Crankcase vapor used with combustible mixture (Class 123/572)
- Diverse fuel supply (Class 123/575)
- Multiple carburetors (Class 123/579)
- Auxiliary air or oxygen added to combustible mixture (Class 123/585)
- Charge-mixing device in intake (e.g., device which insures the atomization of the combustible mixture) (Class 123/590)
- Retrofit conversion ignition unit (Class 123/595)
- Using capacitive storage and discharge for spark energy (Class 123/596)
- High frequency ignition system (Class 123/606)
- Having dwell control (Class 123/609)
- Having engine component position sensor (Class 123/612)
- Having specific trigger circuitry (Class 123/618)
- Additional spark energy supply (Class 123/620)
- Having an ignition coil with multiple primary or secondary windings (Class 123/621)
- Having supply voltage regulation (Class 123/623)
- Having ballast resistor cutout or control (Class 123/624)
- Responsive to engine or environmental condition (Class 123/625)
- Having auxiliary spark gap in series or parallel with the coil (Class 123/627)
- Having a continuous high voltage output to the high voltage distributor (Class 123/628)
- Monostable multivibrator controls timing of coil primary current (Class 123/629)
- Safety device (Class 123/630)
- Radio interference protection (Class 123/633)
- Having a specific ignition coil (Class 123/634)
- Specific coil location (Class 123/635)
- Multiple spark ignition system (Class 123/636)
- Dual systems (Class 123/640)
- Piezoelectric voltage generator (Class 123/642)
- Electronic cylinder sequencing (Class 123/643)
- Current or voltage sensing in coil primary (Class 123/644)
- Maverick spark suppressor (Class 123/645)
- Having a specific mounting of system component (Class 123/647)
- Having SCR triggered by lowering cathode voltage below ground (Class 123/648)
- Multiple primary current interrupters (Class 123/649)
- Power supply, ignition coil primary, and interrupter element all in series (Class 123/650)
- Electrical system (Class 123/90.11)
- Hydraulic system (Class 123/90.12)
- Pneumatic system (Class 123/90.14)
- With means for varying timing (Class 123/90.15)
- With temperature compensation (Class 123/90.19)
- With compound movement of cam follower (Class 123/90.2)
- Follower displaced axially of camshaft (Class 123/90.21)
- Plural valve trains, single actuator (Class 123/90.22)
- Valve driven closed (Class 123/90.24)
- Overhead camshaft (Class 123/90.27)
- With nonvalving movement (e.g., about valve stem) (Class 123/90.28)
- Camshaft drive means (Class 123/90.31)
- With alternate interruption of drive train (Class 123/90.32)
- Lubrication (Class 123/90.33)
- Rocker (Class 123/90.39)
- Tappet (Class 123/90.48)
- Cam (Class 123/90.6)
- Rod (Class 123/90.61)
- Spring (Class 123/90.65)
- Remote control (Class 123/179.2)
- Condition responsive control of starting device (Class 123/179.3)
- Control of spark ignition during starting (Class 123/179.5)
- Control of glow plug during starting (Class 123/179.6)
- Auxiliary fuel supply device (Class 123/179.7)
- With fuel or intake air control (Class 123/179.16)
- Includes auxiliary internal combustion engine (Class 123/179.19)
- With charge or cylinder heating (Class 123/179.21)
- Inertia type (Class 123/179.22)
- Either power or manual starting device (Class 123/179.24)
- For airplane (Class 123/179.27)
- With electric generating means (Class 123/179.28)
- Having fluid-driven starting motor (Class 123/179.31)
- Gunpowder type (Class 123/183.1)
- Compression relieving type (Class 123/182.1)
- Having specific mounting or drive connection for electric starter motor (Class 123/179.25)
- Mechanical (Class 123/185.1)
- With auxiliary igniters (Class 123/184.1)
- Passage to crankcase (Class 123/184.22)
- For engine having radiating cylinders (Class 123/184.28)
- For in-line engine (Class 123/184.38)
- For use with carburetor upstream of manifold (Class 123/184.46)
- Manifold having plenum (Class 123/184.47)
- Multiple passage leading to inlet of one cylinder (Class 123/184.52)
- Manifold tuning, balancing or pressure regulating means (Class 123/184.53)
- Manifold material or composition (Class 123/184.61)
- L- or T-shaped (Class 123/658)
- Having groove to aid combustion (Class 123/659)
- An acoustic cavity used to attenuate detonation shock waves (e.g., Bodine) (Class 123/660)
- Having squish area (Class 123/661)
- Multiple annular combustion chambers (Class 123/662)
- Annular combustion chamber (Class 123/663)
- Combustion chamber shape is a figure of revolution (Class 123/664)
- Asymmetric combustion chamber (Class 123/667)
- Having coating or liner (Class 123/668)
- Having catalytic cambustion aid (Class 123/670)
- Cylinder head shape conforms to piston shape (Class 123/671)
- Detachable (Class 123/189)
- Valve head cooperates with manifold (Class 123/188.14)
- Reciprocating valve (Class 123/188.4)
- Rotary (Class 123/190.1)
- Packing (Class 123/188.6)
- Combustion improving accessory (Class 123/188.7)
- Valve seat relation (Class 123/188.8)
- Guide, lubricant, or coolant (Class 123/188.9)
- Wear feature (Class 123/188.11)
- Having actuation springs concentric with valve stem (Class 123/188.17)
- Decarbonizers and antiknocks (Class 123/198A)
- Antitheft valves and locks (Class 123/198B)
- Pumps (Class 123/198C)
- Safety devices (Class 123/198D)
- Bearing wear, cylinder, oil drain, auto ignition (Class 123/198DA)
- Fuel cut-off (Class 123/198DB)
- Ignition cut-off control (Class 123/198DC)
- Covers, trays, vibrators, corrosion inhibitors, air filters (Class 123/198E)
- Cylinder cut out (Class 123/198F)
- Pressurizing - crankcase, clutch housing, transmission housing (Class 123/198P)
Foreign Patent Art Collections
Foreign Patent Art Collections
- Vacuum timing control (123/407) (Class 123/FOR102)
- Barometric pressure responsive controller (123/412) (Class 123/FOR107)
- By mechanical or hydraulic link to throttle valve or accelerator (123/413) (Class 123/FOR108)
- Having engine shaft position sensor (123/414) (Class 123/FOR109)
- Analog electronic control (123/415) (Class 123/FOR110)
- Digital electronic control (123/416) (Class 123/FOR111)
- Speed responsive (123/418) (Class 123/FOR113)
- Ambient or engine temperature responsive (123/421) (Class 123/FOR116)
- Acceleration responsive (123/422) (Class 123/FOR117)
- Deceleration responsive (123/423) (Class 123/FOR118)
- Starting or cold running condition responsive (123/424) (Class 123/FOR119)
- Cylinder pressure or cylinder temperature responsive (123/425) (Class 123/FOR120)
- Feedback correction (123/426) (Class 123/FOR121)
- Timing control derived from ignition capacitor (123/427) (Class 123/FOR122)
- Having circuit that alters response of an oscillatory engine shaft position sensing circuit (123/428) (Class 123/FOR123)
- Exhaust gas used with the combustible mixture (e.g., emission control (e.g.r. valve) (123/568) (Class 123/FOR124)
