Show all posts by user
Re: Yet Another New Steam Engine - 17 years ago
Hi Andy, Its not very often that you impress me, but this is one of those times. Check out this reference. It mentions a so called expandor box. US 4,601,170 Issued 1986 July 22. Perhaps this is a true 6 stroke engine that Bruce has developed. But is just my opinion that the boiler should be disconected from the engine. This is the only way solid fuel could be utilized. Best Jeby Jeremy Holmes - SteamStuff
Re: Yet Another New Steam Engine - 17 years ago
Hi Jim, I heard about this a while back. Funny I did not notice your posting on this till just now. "Six stroke engine with the other two strokes devoted to steam. Now play with this one" Lets see here, From what I understand, Bruce is getting two power strokes from a six stroke engine cycle. one from spark ignition and the other from water injection from a diesel pumpby Jeremy Holmes - SteamStuff
Re: Mechanical Design Stuff - 17 years ago
Hi Bill, I havent been following your design that closely, but I think you are right on with the mention of supersonics to promote atomization. Negating the flash steam factor that naturally produces very fine droplets. The nozzel geometry will be key to getting such a result. I have found that a 60*(incuded) cone with a matching chamfer after the discharge area produces a nice shock wave inby Jeremy Holmes - SteamStuff
Re: Williams ws. Rankin - 17 years ago
Hey Ben, forgive me if your latch and spring reminds me of the corrliss valve gear on a uniflow engine in a laundry matt as JC describes... clickity-clack on time with rpm and load. Yes im under 40....... actually 33 JWby Jeremy Holmes - SteamStuff
Re: 1901 Locomobile Lights - 17 years ago
This is probably off-topic just abit. Recently I replaced a rebuilt engine and transmission it a 1926 Ford model T or year simular. And I played a joke on the owner(my Dad) I told him we busted out one of the headlight len's. He was so upset, he proclaimed to me the 'pink tint' headlamp glass was more valuable than the car itself(each?) is this true? Ben? Ovcoarse I was just joking with him,by Jeremy Holmes - SteamStuff
Re: Modern Steam car - 18 years ago
Hi Andy, My mistake, I was refering to the phase change of water's expansion ratio to steam. If water is contained at its supercritical temp what your saying is correct. Jeremyby Jeremy Holmes - SteamStuff
Re: Modern Steam car - 18 years ago
ROLLY, "these guy's wanting 1000 D to 1500 D superheat better figure out how to lubricate there engine first" BRAVO Rolly... As I have mentioned before, why? would anyone want to go over 705*f with steam...Maybe it was you who said that : ) Personally I believe the super-critical saturation temp. of 705*f is the intersection of the 1600 to 1 expansion ratio of water to stby Jeremy Holmes - SteamStuff
Re: Williams Engine Data - 18 years ago
The factor that most impresses me about the LaMont is its reserve capacity. With a MonoTube there will have to be much more realtime control as far as demand (steam lbs/hr) capacity. Just want to interject : ) that the Williams engine cycle intregues me greatly as it utilizes -exhaust steam recompression. Jeremyby Jeremy Holmes - SteamStuff
Re: Dragster Progress - 18 years ago
My hat's off to you Chuk... "and is monotube fired" "it runs 800psi- producing approx 600 Lbs/hr" Wow im jealous... Keep up the endeaver- Jeremyby Jeremy Holmes - SteamStuff
Re: Hi Temp/Pressure Injection - 18 years ago
Hi all, Just a heads up. Patent# 6,928,992 was granted for The Universal Injection Valve Assembly/L912 Injector on Aug. 16 2005. It was alot of work to get that patent number, I hope that this device will motivate some alternative designs with single acting steam engines. Jeremyby Jeremy Holmes - SteamStuff
Re: A Different Thread - 18 years ago
Not necessarily Bill, The idea of water jackets on a cyntrifugal 'impeller' housing, not necessarily the bearing housing. Could lead to a design of 'turbo-pump' boiler of some kind. Remember turbine impellers make heat thru compression, throw live steam into the equation and you dont even need re-heatexchangers to the second stage. In thoery if the steam engine (piston expander) was of sufficby Jeremy Holmes - SteamStuff
Re: cyclone engine - 18 years ago
Harry- Just out of curiousity have you experimented with molybendlm lubicants. Also have you detected any advanages using organic ingredents such as tallow. I am still experimenting with tallow, first thing i noticed is that it changed the boiling point of the water(to a higher temp) that i was working with under pressure. I agree with George-N, your powerplant, is a unique and compact of desby Jeremy Holmes - SteamStuff
Re: Fun with Recompression - 18 years ago
Just want to make it clear, That no cryogenics were used in any of my experiments. All argon or co2 used was completely vapor@77*f at high pressure, none of the liquid gasses were used. Truely water is the perfect working fluid... Jeremyby Jeremy Holmes - SteamStuff
Re: Fun with Recompression - 18 years ago
Andy you make an intreqing point in one of your above post's about 'residual steam'. Theoretically residual steam may be steam, that has passed thru a (feedwater/preheat) condencer assembly and still retain its 1135btu. Considering the volume of steam passed thru such a steam condencer, it is inevitable that a small percentage of steam will not be condenced in such an assembly. I hear alot oby Jeremy Holmes - SteamStuff
Re: Fun with Recompression - 18 years ago
By the way, the torque 'possible' from the engine would be much higher with a supply pressure of 2400psi than with 1500psi, but thru reduced lift settings(in the variable lift mechanism) the 2400 psi supply could be controlled to match the highest output possible with 1500 supply pressure, at the given rpm. Jeremyby Jeremy Holmes - SteamStuff
Re: Fun with Recompression - 18 years ago
Arnold, I really have to compliment the introspection of your post. I enjoy the concept of a otto cycle steam engine. I know it cuts across the grain of conventional thinking, but I have a plan to recycle a percentage (definitly not 100%)of exhaust steam from such an engine and reroute it back into the intake manafold. A couple years back, this guy emailed me about the uniflow/williams engineby Jeremy Holmes - SteamStuff
Re: Hi Temp/Pressure Injection - 18 years ago
Going to have to agree with you there Andy. Sometimes the target result may be achieved in several different ways. It seems to me all these alternative methodologys have there own unique practical drawbacks. High pressure systems are difficult to manage, variable chamber volume crank systems must be robust and strong. Kind of makes you really appreciate the advances those guys made, that made theby Jeremy Holmes - SteamStuff
Re: Hi Temp/Pressure Injection - 18 years ago
Harry, When you say all throttling is acomplished thru variable valve timing, How do you adjust timing, is your system system utilizing a VTC (variable time canshaft) system ? If so, what is the rise and fall duration of valve lift? and how many degrees (crankshaft) is the valve in a fully open range? I am working from the VVL(variable valve lift) angle. I have also noticed remarkable efficieby Jeremy Holmes - SteamStuff
Re: Shortblock - 18 years ago
Although I agree that 2-stroke, out-board V6 and V8 engines, make excellent aluminum blocks,,, BUT, due to the fact, side porting is fixed, not variable- the possibilty of"snap-action" corliss type valve gear is not an option, with side ported engines???? regardless of the type of material; of there block construction... But Jim makes an excellent point, you could install bore sleeves tby Jeremy Holmes - SteamStuff
Re: Shortblock - 18 years ago
Bill G, I have 2 complete all aluminum 'long blocks'(with cyl heads, never dissaembled). These are 1994 Infinity Q45 V8 engines made by Nissan(289 cubic inch displacment). These engines are 6-bolt mains (4-bolt main cap with side bolts). Both engines were running, but had some low end problems, one has a slightly bent rod, the other had a hole punched in the oil pan, it ran well with no noiseby Jeremy Holmes - SteamStuff
Re: Shortblock - 18 years ago
Bill, There are several grades of production cast iron used in'V8' blocks,"Nodular" alloy has high nickel content. I have a 1972-429(ford) police interceptor class engine, complete short block. My friend and I have been studing the numbers on this thing, apparently it is nodular cast iron. The draw back, is its only 2 bolt mains, the books say these nodular caps(2-bolt) are as stroby Jeremy Holmes - SteamStuff
Re: Fun with Recompression - 18 years ago
Garry H, I agree with you, for the most part- experience is KING.. However, as nothing more(than most in general), than simply are outsider's, this type of science, I amekcectly agree with you... Tinkerer's are all fine and dandy, for extend-ing time,- and extenstion of time/experience... But repeatable results are essentaial to empirical testing standards..... For your light hearted extrby Jeremy Holmes - SteamStuff
Re: Suggested Threads? - 18 years ago
Uknow- I do ALOT of TIG- heli-arc welding with aluminum. I have access too a 350amp TIG(for welding alu), it welds 1/2in to 1/2in thick plate no problem (yes the welds have to be made in layers), -if the structure has -sink- capability, then some pre-heating is in order. But with 1/8'th thick fin's, 1-in to 1.5(in') wide, can be welded over 5(ft" on aluminum rectangular extrusions, 2'by6'by Jeremy Holmes - SteamStuff
Re: Bourke engine - 18 years ago
The thing I was reffering to, with regards to the hole in the cylinder,relates to a gasoline direct injection system. Im reasonably sure was done back some time around 1994 or so, just cant remember exactly. They drilled a small hole about 1/8th dia, in the side of the piston cylinder about an inch or so from the top of the piston cyl. Then installed a standard low pressure fuel injector to that(by Jeremy Holmes - SteamStuff